mcp server

Friday Seller Tools

Marketplace-seller tools: listing audits, PPC kits, pricing, compliance. Paid via x402 or card.

Description as published by the maintainer. Source

• version 0.3.0
• archived
• security

archived — The linked repository returns 404. It was deleted, renamed or made private. Dashed tags are derived by ZBS Index from the published description, not stated by the maintainer.

What this server can do

204 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.

a_plus_content_brief(avoid, product, objective, brand_tone, module_count, available_assets)

A deterministic Amazon A+ planning brief with grounded draft copy, image direction, alt text, asset gaps, and claim-review steps. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon-a-plus/content-brief and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=a_plus_content_brief. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/a_plus_content_brief. Required: product.

amazon_atoz_claim_organizer(claims, as_of_date, marketplace, report_label, reporting_currency, deadline_warning_days, odr_denominator_orders)

Turn seller-redacted A-to-z claim summaries into an exact deadline queue, preserve supplied counts-toward-ODR observations, and summarize claim and order exposure without reading Seller Central or predicting a decision. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/atoz-claims/deadline-odr-exposure and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_atoz_claim_organizer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_atoz_claim_organizer. Required: report_label, as_of_date, claims.

amazon_automate_pricing_auditor(economics, marketplace, report_label, currency_code, latest_snapshot, earlier_snapshot, confirm_rules_and_economics_are_seller_supplied)

Audit one or two seller-supplied Automate Pricing exports against your own landed costs, fees, and contribution floor: rank inverted bounds, minimums and current prices below the recomputed first viable cent, and rule or bound drift between exports — without predicting a Featured Offer outcome. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/pricing/automate-pricing-margin-rule-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_automate_pricing_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_automate_pricing_auditor. Required: report_label, confirm_rules_and_economics_are_seller_supplied, latest_snapshot.

amazon_awd_fee_verifier(rate_card, charge_rows, marketplace, report_label, statement_date, amount_tolerance, reporting_currency, high_exposure_threshold)

Join seller-redacted Amazon Warehousing & Distribution charge rows to your own rate card, recompute storage, box or pallet processing, and transportation charges from billed quantities, then rank arithmetic differences and high-exposure lines without embedding Amazon rates. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/awd/storage-processing-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_awd_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_awd_fee_verifier. Required: report_label, statement_date, reporting_currency, rate_card, charge_rows.

amazon_b2b_opportunity_qualifier(rows, economics, marketplace, report_label, currency_code, report_end_date, report_start_date, default_referral_fee_rate, minimum_unit_contribution)

A deterministic filter for seller-supplied Amazon B2B Product Opportunities report rows that applies seller-entered landed cost, fulfillment cost, referral-fee rate, and sourcing status, preserves Amazon's demand fields as observations, and separates qualified candidates from below-floor, sourcing-blocked, and needs-economics queues. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon-business/product-opportunity-margin-qualification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_b2b_opportunity_qualifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_b2b_opportunity_qualifier. Required: report_label, report_start_date, report_end_date, minimum_unit_contribution, rows.

amazon_backend_search_term_byte_checker(search_terms, visible_copy)

Count the exact UTF-8 bytes of a supplied Amazon backend search-term field against the 250-byte budget and flag repeated, already-visible, and risky terms for human review. This does not validate marketplace policy or indexing. FREE TOOL: $0.00 USD; no payment is required and the result runs inline. Required: search_terms.

amazon_backend_search_terms(product, byte_budget, visible_copy, excluded_terms, candidate_terms)

A deterministic Amazon US backend search-term draft that ranks seller-scored candidates, removes repeated and excluded words, and enforces the exact UTF-8 byte budget. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/listings/backend-search-terms and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_backend_search_terms. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_backend_search_terms. Required: product, candidate_terms.

amazon_brand_referral_bonus_estimator(rows, as_of_date, report_label, amount_tolerance, reporting_currency)

Estimate each seller-supplied attributed order's Brand Referral Bonus as attributed sales x your supplied bonus rate, compare the estimate with any credit you recorded, and rank shortfalls and rows missing a rate without asserting Amazon owes anything. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/finance/brand-referral-bonus-credit-estimator and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_brand_referral_bonus_estimator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_brand_referral_bonus_estimator. Required: report_label, as_of_date, reporting_currency, rows.

amazon_browse_node_drift(current, baseline, assignments, marketplace, report_options)

A deterministic, security-bounded XML diff that compares like-for-like seller-supplied Amazon Browse Tree reports by node ID, then ranks taxonomy changes and flags supplied catalog assignments without touching a listing. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/catalog/browse-node-drift-diff and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_browse_node_drift. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_browse_node_drift. Required: report_options, baseline, current.

amazon_business_fee_discount_planner(rows, as_of_date, marketplace, currency_code, amount_tolerance)

A deterministic Amazon Business offer-economics planner that combines normalized, seller-supplied Referral Fee Discounts rows with your unit costs, contribution floor, and optional volume assumptions, then ranks time-limited candidates without promising demand or changing a price. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon-business/referral-fee-discount-plan and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_business_fee_discount_planner. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_business_fee_discount_planner. Required: as_of_date, rows.

amazon_coupon_budget_forecaster(rows, currency, plan_label, forecast_days, forecast_start_date, minimum_unit_contribution)

Combine each supplied discount and clip fee, calculate how many whole redemptions the planning budget supports, project its burn and exhaustion date from one seller-supplied redemption scenario, and rank contribution risk without predicting demand or changing a coupon. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/coupons/clip-fee-budget-burn-down and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_coupon_budget_forecaster. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_coupon_budget_forecaster. Required: plan_label, forecast_start_date, forecast_days, currency, rows.

amazon_currency_converter_disbursement_reconciler(rows, as_of_date, report_label, amount_tolerance, disbursement_currency, high_fee_exposure_threshold, confirm_current_disbursement_source, confirm_seller_supplied_exchange_and_fee_terms)

Recompute converted gross from each supplied source amount and exchange rate, recompute the conversion fee and post-fee disbursement, then rank exchange, fee, disbursement, and recorded-identity differences without claiming Amazon owes money. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/finance/currency-converter-disbursement-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_currency_converter_disbursement_reconciler. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_currency_converter_disbursement_reconciler. Required: report_label, disbursement_currency, as_of_date, confirm_current_disbursement_source, confirm_seller_supplied_exchange_and_fee_terms, rows.

amazon_deferred_transactions_exposure(rows, as_of_date, report_label, amount_tolerance, reporting_currency)

Verify each seller-supplied deferred-transaction row's component sum, then rank the held value by age bucket, SKU, fulfillment channel, store, transaction type, and deferral reason without predicting a release date. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/finance/deferred-transaction-cash-exposure and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_deferred_transactions_exposure. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_deferred_transactions_exposure. Required: report_label, as_of_date, reporting_currency, rows.

amazon_eu_local_inventory_gap_monitor(snapshots, marketplace, report_label, country_rules, imbalance_review_threshold_units)

Compare seller-supplied FBA Multi-Country Inventory snapshots by SKU and country, then rank local quantity dropping to zero, falling below seller floors, disappearing from the latest export, or becoming more imbalanced across countries. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/eu-local-inventory-gap-drift and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_eu_local_inventory_gap_monitor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_eu_local_inventory_gap_monitor. Required: report_label, country_rules, snapshots.

amazon_fba_size_tier_shave_optimizer(items, marketplace, weight_unit, report_label, dimension_unit, reporting_currency, confirm_boundaries_and_fees_are_seller_supplied)

Compare ordered package measurements and comparison weight with your own next-smaller FBA boundaries, return every exact reduction required, and model per-unit and annual fee savings without claiming Amazon will reclassify the item. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/size-tier-boundary-shave and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_fba_size_tier_shave_optimizer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_fba_size_tier_shave_optimizer. Required: report_label, dimension_unit, weight_unit, confirm_boundaries_and_fees_are_seller_supplied, items.

amazon_feedback_topic_trends(rows, as_of_month, marketplace, report_label, star_impact_threshold, acceleration_threshold_points)

Rank seller-supplied Amazon Customer Feedback topics by latest occurrence, month-over-month acceleration, and supplied star-rating impact, while keeping positive themes in a separate evidence-preservation list — without reading or quoting a review. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/customer-feedback/topic-trend-prioritization and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_feedback_topic_trends. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_feedback_topic_trends. Required: report_label, as_of_month, rows.

amazon_inbound_placement_planner(options, total_units, report_label, reporting_currency, baseline_option_label)

For each seller-supplied placement split option, total the per-unit inbound placement fee across your units, add your own inbound freight and prep cost, rank options by total landed cost, and show the placement-fee saving, added freight, and net saving versus a baseline option. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/inbound/placement-strategy-planner and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_inbound_placement_planner. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_inbound_placement_planner. Required: report_label, reporting_currency, total_units, baseline_option_label, options.

amazon_ipi_component_gap_diagnoser(marketplace, report_label, snapshot_date, current_ipi_score, fba_sell_through_rate, seller_target_ipi_score, excess_inventory_percent, fba_in_stock_rate_percent, stranded_inventory_percent, seller_min_fba_sell_through_rate, seller_max_excess_inventory_percent, seller_min_fba_in_stock_rate_percent, seller_max_stranded_inventory_percent)

Compare one seller-supplied IPI snapshot with your own healthy thresholds for excess inventory, FBA sell-through, stranded inventory, and FBA in-stock rate; then review the largest relative target gaps first without pretending to know Amazon's score weights. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/ipi-component-gap-diagnosis and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_ipi_component_gap_diagnoser. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_ipi_component_gap_diagnoser. Required: report_label, snapshot_date, current_ipi_score, seller_target_ipi_score, excess_inventory_percent, seller_max_excess_inventory_percent, fba_sell_through_rate, seller_min_fba_sell_through_rate, stranded_inventory_percent, seller_max_stranded_inventory_percent, fba_in_stock_rate_percent, seller_min_fba_in_stock_rate_percent.

amazon_low_price_fba_fee_verifier(rows, rate_card, as_of_date, report_label, amount_tolerance, reporting_currency, low_price_threshold, seller_confirms_threshold_and_rate_card_are_current, seller_confirms_rows_are_complete_current_fee_records)

Match each seller-supplied fulfillment-fee row to one supplied size-tier and weight band, select the supplied low-price or standard rate from your price threshold, recompute the total, and rank signed differences without asserting eligibility or a mischarge. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/low-price-fulfillment-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_low_price_fba_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_low_price_fba_fee_verifier. Required: report_label, as_of_date, reporting_currency, low_price_threshold, seller_confirms_rows_are_complete_current_fee_records, seller_confirms_threshold_and_rate_card_are_current, rate_card, rows.

amazon_market_basket_attachment_ranker(rows, marketplace, report_label, currency_code, report_period, catalog_context)

A deterministic Amazon Brand Analytics Market Basket transform that preserves directional co-purchase ranks and frequencies across supplied periods, separates seller-owned attachment candidates from margin-review and external-ASIN research queues, and never claims causal lift. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/brand-analytics/market-basket-attachment-rank and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_market_basket_attachment_ranker. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_market_basket_attachment_ranker. Required: report_label, report_period, rows.

amazon_mcf_order_fee_verifier(orders, fee_rates, marketplace, report_label, snapshot_date, amount_tolerance, reporting_currency, high_exposure_threshold)

Join seller-redacted MCF order rows to your supplied size-tier, weight-band, and delivery-speed rates; recompute each fulfillment fee, rank arithmetic differences, and keep positive and negative exposure separate—without looking up a fee or claiming Amazon billed incorrectly. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/mcf/order-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_mcf_order_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_mcf_order_fee_verifier. Required: report_label, snapshot_date, reporting_currency, fee_rates, orders.

amazon_narf_eligibility_drift(snapshots, marketplace, report_label, currency_code)

Diff two to twelve seller-supplied Remote Fulfillment eligibility snapshots and rank offers whose cross-border eligibility or offer status was lost, gained, or flapped, weighted by the recent sales and contribution value you supply. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/remote-fulfillment/eligibility-drift and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_narf_eligibility_drift. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_narf_eligibility_drift. Required: report_label, snapshots.

amazon_prime_discount_preflight(rows, rules, currency, marketplace, report_label, snapshot_date, confirm_rules_are_seller_supplied_current)

Check planned Prime-exclusive prices against your own current copies of the minimum discount and reference-price rules, then compare the resulting rule ceiling with your seller and contribution floors without claiming Amazon eligibility. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/deals/prime-exclusive-discount-margin-preflight and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_prime_discount_preflight. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_prime_discount_preflight. Required: report_label, snapshot_date, currency, confirm_rules_are_seller_supplied_current, rules, rows.

amazon_referral_fee_verifier(rows, report_label, amount_tolerance, reporting_currency, high_exposure_threshold)

Recompute each seller-supplied referral-fee row as units x max(unit price x referral percentage, per-unit minimum), compare it with the amount charged, and rank discrepancies and high-dollar exposure without claiming Amazon charged incorrectly. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/finance/referral-fee-charge-verifier and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_referral_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_referral_fee_verifier. Required: report_label, reporting_currency, rows.

amazon_refund_fee_credit_verifier(rows, marketplace, report_label, report_end_date, amount_tolerance, report_start_date, reporting_currency, confirm_rows_are_seller_redacted, confirm_terms_are_seller_supplied)

Apply each seller-supplied refunded share, retained-fee percent, and cap to a redacted original referral fee; compare the recorded administration fee and referral-fee credit; and keep partial refunds and missing-source rows separate—without looking up a term or claiming a credit is owed. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/finance/refund-administration-fee-credit-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_refund_fee_credit_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_refund_fee_credit_verifier. Required: report_label, report_start_date, report_end_date, reporting_currency, confirm_rows_are_seller_redacted, confirm_terms_are_seller_supplied, rows.

amazon_repeat_purchase_momentum_comparator(rows, marketplace, report_label, currency_code, report_period)

A deterministic Amazon Brand Analytics Repeat Purchase comparison that turns aggregate WEEK, MONTH, or QUARTER rows into strengthened, weakened, mixed, and insufficient-history queues, with transparent supplied-row concentration math and no customer data. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/brand-analytics/repeat-purchase-momentum and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_repeat_purchase_momentum_comparator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_repeat_purchase_momentum_comparator. Required: report_label, report_period, rows.

amazon_returns_processing_fee_auditor(rows, marketplace, report_label, snapshot_date, reporting_currency, high_exposure_threshold, near_threshold_margin_percent)

Estimate Amazon returns-processing-fee exposure from a seller-supplied per-product returns export: flag rows whose return rate exceeds your category threshold, estimate the chargeable units above the allowance and the fee cost, watch rows near the threshold, and total exposure by category—without looking up a threshold or asserting a fee was charged. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/returns-processing-fee-exposure and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_returns_processing_fee_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_returns_processing_fee_auditor. Required: report_label, snapshot_date, reporting_currency, rows.

amazon_sales_traffic_trend(current, baseline)

A deterministic two-period Business Report comparison that joins seller-supplied ASIN rows, calculates every observed sales and funnel delta, and ranks review candidates without inventing a cause or recovery forecast. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/business-reports/asin-sales-traffic-trend and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_sales_traffic_trend. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_sales_traffic_trend. Required: baseline, current.

amazon_seller_fulfilled_return_reconciler(rows, as_of_date, marketplace, report_label, report_end_date, report_start_date, reporting_currency)

Reconcile seller-redacted MFN and Prime return rows using supplied order/refund amounts, label payer and cost, policy flag, resolution, SAFE-T observation, and return status; rank source-review mismatches and summarize supplied outflow by reason and SKU. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/returns/seller-fulfilled-label-refund-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_seller_fulfilled_return_reconciler. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_seller_fulfilled_return_reconciler. Required: report_label, report_start_date, report_end_date, as_of_date, rows.

amazon_seller_performance_trend_monitor(snapshots, marketplace, report_label, worsening_threshold_percentage_points, rate_reconciliation_tolerance_percentage_points)

Turn two to twelve normalized, aggregate Amazon Seller Performance snapshots into a target-gap review queue with count-to-rate reconciliation, transparent direction-aware trend math, and no account-health prediction. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/seller-performance/target-gap-trends and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_seller_performance_trend_monitor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_seller_performance_trend_monitor. Required: report_label, snapshots.

amazon_selling_plan_comparator(marketplace, report_label, feature_values, monthly_scenarios, reporting_currency, individual_per_item_fee, professional_monthly_fee, confirm_feature_values_are_seller_estimates, confirm_plan_fees_are_seller_supplied_current)

Apply your current Individual per-item and Professional monthly fees to up to 36 sold-unit scenarios, compute the first whole-unit fee-only break-even, and keep optional seller-estimated feature values in a separate comparison. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/selling-plans/individual-professional-break-even and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_selling_plan_comparator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_selling_plan_comparator. Required: report_label, individual_per_item_fee, professional_monthly_fee, confirm_plan_fees_are_seller_supplied_current, monthly_scenarios.

amazon_sipp_discount_estimator(rows, report_label, reporting_currency, seller_confirms_rows_are_current_sipp_eligible, seller_confirms_discount_and_packaging_costs_are_current)

Multiply each seller-confirmed eligible SKU's supplied SIPP fulfillment-fee discount by its eligible units, subtract incremental per-unit packaging cost, and rank the SKUs where packaging wipes out the discount before positive-savings cases. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/sipp-discount-estimate and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_sipp_discount_estimator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_sipp_discount_estimator. Required: report_label, reporting_currency, seller_confirms_rows_are_current_sipp_eligible, seller_confirms_discount_and_packaging_costs_are_current, rows.

amazon_sp_placement_bid_auditor(campaigns, marketplace, report_label, report_end_date, report_start_date, reporting_currency, average_cpc_tolerance, spend_share_review_threshold_percent, confirm_report_and_bid_settings_are_seller_supplied)

Turn seller-supplied aggregate Sponsored Products placement rows and bid settings into a deterministic review queue: recompute maximum effective bids, compare average CPC, measure spend share and ROAS, and keep optional estimated contribution coverage explicit. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/sponsored-products/placement-bid-adjustment-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_sp_placement_bid_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_sp_placement_bid_auditor. Required: report_label, report_start_date, report_end_date, confirm_report_and_bid_settings_are_seller_supplied, campaigns.

amazon_sponsored_display_halo_analyzer(rows, marketplace, report_label, currency_code, report_end_date, product_economics, report_start_date, total_ad_spend_usd, minimum_unit_contribution_usd)

Turn a seller-supplied Sponsored Display purchased-product report into a contribution-ranked review queue: separate direct from halo (non-advertised) purchases, compute contribution and margin against your supplied unit economics, and compare overall ROAS with net contribution after ad spend. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/sponsored-display/halo-sale-margin-analysis and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_sponsored_display_halo_analyzer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_sponsored_display_halo_analyzer. Required: report_label, report_start_date, report_end_date, rows.

amazon_vine_enrollment_planner(rows, currency, plan_label)

Compute the total Vine investment and the unit contribution for every candidate parent ASIN, return the break-even units needed to recover it, and — when you supply an expected incremental-units estimate — the projected net, shortfall, and additional units, without predicting sales or recommending enrollment. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/vine/enrollment-break-even-planner and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_vine_enrollment_planner. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_vine_enrollment_planner. Required: plan_label, currency, rows.

amazon_voc_cx_health_prioritizer(rows, marketplace, report_label, snapshot_date, reporting_currency)

Rank aggregate seller-supplied Voice of the Customer rows by units and NCX rate, preserve Amazon's supplied CX Health band, and group normalized top-reason labels without reading customer text or inferring cause. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/voice-of-customer/cx-health-prioritization and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_voc_cx_health_prioritizer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_voc_cx_health_prioritizer. Required: report_label, snapshot_date, rows.

brand_name_screen(known_names, marketplace, candidate_names, forbidden_terms, product_category)

A deterministic collision and wording screen for up to 20 candidate brand names against customer-supplied known names, forbidden terms, category wording, and marketplace references. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/brands/name-screen and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=brand_name_screen. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/brand_name_screen. Required: product_category, candidate_names.

brand_story_generator(tone, pillars, audience, brand_name, marketplace, origin_story, brand_summary, call_to_action, product_categories)

A deterministic copy assembler that turns your brand summary, origin, audience, categories, and factual pillars into hero, story, pillar, and call-to-action blocks with an exact source ledger and fixed risky-phrase hold. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/brand/storefront-story and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=brand_story_generator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/brand_story_generator. Required: marketplace, brand_name, brand_summary, origin_story, audience, product_categories, pillars.

bulk_csv_audit(csv_text, marketplace)

A deterministic audit of up to 100 seller-supplied CSV rows for identifiers, duplicate SKUs, conservative channel limits, spreadsheet-formula triggers, and restricted-phrase matches. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/bulk-csv-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=bulk_csv_audit. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/bulk_csv_audit. Required: csv_text.

bullet_rewriter(bullets, product, focus_keywords)

A deterministic readability pass over your Amazon US, Walmart US, Shopify, or eBay US bullets—casing, spacing, punctuation, and promotional-phrase removal—with a per-bullet readability score and focus-keyword coverage. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/bullet-rewrite and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=bullet_rewriter. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/bullet_rewriter. Required: product, bullets.

bundle_pricing_optimizer(sku, marketplace, bundle_sizes, product_name, fixed_order_fee_usd, single_unit_price_usd, product_cost_per_unit_usd, candidate_discount_percents, percentage_fee_rate_percent, fulfillment_cost_per_unit_usd, target_contribution_margin_percent)

A deterministic price-scenario calculator that compares bundle sizes and candidate discounts using your single-unit price, product and fulfillment costs, fixed order fee, percentage fee, and target contribution margin. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/pricing/bundle-multipack-optimizer and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=bundle_pricing_optimizer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/bundle_pricing_optimizer. Required: product_name, single_unit_price_usd, product_cost_per_unit_usd.

catalog_readiness(sku, gtin, product, quantity, image_urls, ebay_category_id, country_of_origin, walmart_product_type, ebay_return_policy_id, ebay_payment_policy_id, shopify_product_category, ebay_fulfillment_policy_id, ebay_merchant_location_key)

A four-channel readiness report for Amazon US, Walmart US, Shopify, and eBay US from one supplied product record. PAID SKILL: $0.05 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/catalog/readiness-check and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=catalog_readiness. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/catalog_readiness. Required: product, sku.

category_node_suggester(product, candidate_nodes, max_suggestions)

A deterministic candidate ranker that compares seller-supplied marketplace nodes with verified product facts, showing every match, gap, evidence field, and ambiguous result without pretending to know the live taxonomy. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/catalog/category-node-suggestions and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=category_node_suggester. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/category_node_suggester. Required: product, candidate_nodes.

claim_check(text, marketplace, verified_claims, forbidden_claims)

A deterministic phrase and evidence screen for Amazon US, Walmart US, Shopify, or eBay US copy. PAID SKILL: $0.03 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listing/claim-check and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=claim_check. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/claim_check. Required: marketplace, text.

competitor_change_monitor(after, before, cadence, marketplace, watch_fields, competitor_label, listing_identifier)

A deterministic comparison of two seller-supplied competitor listing snapshots, with field-level changes and a bounded monitoring specification. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/competitors/change-monitor-spec and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=competitor_change_monitor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/competitor_change_monitor. Required: competitor_label, listing_identifier, before, after.

competitor_research(mode, marketplace, max_results, product_url)

An isolated, read-only extraction of public Amazon, Walmart, eBay, or brand-site product fields with source links and confidence scores. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/competitors/research and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=competitor_research. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/competitor_research. Required: mode, product_url.

compliance_scan(title, bullets, description, marketplace, product_name)

A deterministic scan of your title, bullets, and description against a fixed list of restricted-claim phrase rules, returning each match with severity and a safer rewrite. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/compliance-scan and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=compliance_scan. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/compliance_scan. Required: product_name, title.

cross_listing_field_mapper(fields, category_context, source_marketplace, target_marketplaces)

A deterministic planning crosswalk that maps up to fifty seller-supplied field names and exact values into one or two target marketplaces, separating straightforward copy candidates from category-sensitive and unmapped fields. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/catalog/cross-listing-field-map and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=cross_listing_field_mapper. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/cross_listing_field_mapper. Required: source_marketplace, target_marketplaces, fields.

customer_question_answer(tone, marketplace, product_name, verified_facts, customer_question, max_facts_in_answer)

A deterministic answer draft that classifies one supplied customer question, ranks explicitly seller-verified facts by relevance, and withholds risky or instruction-shaped facts for review. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/customers/question-answer-draft and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=customer_question_answer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/customer_question_answer. Required: product_name, customer_question, verified_facts.

deal_roi_calculator(unit_cost, list_price, marketplace, product_name, baseline_units, campaign_spend, fixed_deal_fee, discount_percent, discounted_units, referral_fee_percent, comparable_period_label, fee_per_discounted_unit, fulfillment_cost_per_unit, other_variable_cost_per_unit)

A deterministic baseline-versus-deal calculator that separates unit lift, contribution change, promotion investment, incremental ROI, and the discounted volume needed to match baseline profit. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/pricing/deal-roi and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=deal_roi_calculator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/deal_roi_calculator. Required: product_name, comparable_period_label, list_price, unit_cost, baseline_units, discounted_units, discount_percent.

dim_weight_classifier(items, tiers, dim_divisor, weight_unit, dimension_unit, margin_percent, round_dim_weight_up)

A deterministic batch classifier that computes billable and dimensional weight from your divisor and assigns each item to your tier table, flagging every dimension within a margin of the next-more-expensive tier. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/shipping/dim-weight-classify and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=dim_weight_classifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/dim_weight_classifier. Required: dim_divisor, tiers, items.

ebay_ad_rate_margin_ceiling(product_cost, listing_price, fulfillment_cost, ad_fee_basis_amount, other_variable_cost, rate_to_check_percent, marketplace_fee_amount, minimum_contribution_amount)

Check one seller-supplied eBay promoted-listing rate against a listing cost stack and minimum contribution floor. It reads no account, stores no economics, and changes no campaign or listing. FREE TOOL: $0.00 USD; no payment is required and the result runs inline. Required: listing_price, ad_fee_basis_amount, product_cost, fulfillment_cost, rate_to_check_percent.

ebay_aged_listing_prioritizer(rows, as_of_date, marketplace, report_label, stale_age_days, low_view_threshold, reporting_currency, low_watcher_threshold, low_velocity_units_per_30_days)

Band seller-supplied aged fixed-price eBay listings into markdown, relist, duplicate-SKU consolidation, and low-velocity review queues using your age, view, watcher, and velocity thresholds—without recommending a price or predicting demand. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/listings/aged-markdown-relist-review and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_aged_listing_prioritizer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_aged_listing_prioritizer. Required: report_label, as_of_date, rows.

ebay_best_offer_acceptance_analyzer(offers, currency, marketplace, report_label, history_end_date, listing_economics, history_start_date, confirm_complete_offer_history)

Measure each listing's supplied Best Offer distribution, recompute which offers met your contribution floor, surface accepted offers below it and viable offers not accepted, and derive descriptive auto-decline and auto-accept candidates without recommending a price. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/offers/best-offer-floor-acceptance-band and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_best_offer_acceptance_analyzer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_best_offer_acceptance_analyzer. Required: report_label, history_start_date, history_end_date, currency, confirm_complete_offer_history, offers, listing_economics.

ebay_billing_activity_review_queue(prior_rows, marketplace, current_rows, report_label, prior_end_date, current_end_date, primary_currency, prior_start_date, current_start_date, movement_review_min_amount, movement_review_threshold_percent)

Compare two equal seller-supplied, redacted eBay billing-activity periods by explicit activity type, debit/credit direction, and currency; surface duplicate references, zero amounts, non-primary currencies, and seller-threshold movement without declaring a fee invalid. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/finances/billing-activity-review and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_billing_activity_review_queue. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_billing_activity_review_queue. Required: report_label, prior_start_date, prior_end_date, current_start_date, current_end_date, prior_rows, current_rows.

ebay_cross_border_fee_auditor(rows, as_of_date, report_label, amount_tolerance, reporting_currency, thin_contribution_threshold)

Recompute seller-supplied international and currency-conversion charges independently, compare each recorded amount, and rank combined fee and contribution exposure without inferring applicability or an exchange rate. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/finances/international-currency-conversion-fee-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_cross_border_fee_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_cross_border_fee_auditor. Required: report_label, as_of_date, reporting_currency, rows.

ebay_customer_service_peer_benchmark(snapshots, marketplace, report_label, marketplace_id, rate_tolerance_points, trend_tolerance_points)

A deterministic comparison of seller-supplied aggregate eBay INR shipping-region and INAD listing-category snapshots that recomputes rates, ranks latest peer-average gaps, and shows transparent count targets without reading an account. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/customer-service/peer-benchmark-gap-analysis and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_customer_service_peer_benchmark. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_customer_service_peer_benchmark. Required: report_label, snapshots.

ebay_discount_lift_reality_check(rows, marketplace, report_label, currency_code, report_end_date, report_start_date, thin_margin_percent)

Recompute eBay's reported discount-sales share from your supplied Discounts Manager summaries, then test the incremental contribution needed to break even—so attributed revenue is not mistaken for profitable lift. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/discounts/sales-lift-reality-check and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_discount_lift_reality_check. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_discount_lift_reality_check. Required: report_start_date, report_end_date, report_label, rows.

ebay_dispute_settlement_reconciler(marketplace, report_label, report_end_date, amount_tolerance, report_start_date, resolved_disputes, reporting_currency, statement_movements, confirm_statement_rows_are_complete_for_window, confirm_disputes_are_resolved_and_expectations_are_seller_supplied)

Compare seller-supplied resolved eBay disputes with redacted payment-account movements across six independent hold, release, reimbursement, and fee components—without reading an account or claiming money is owed. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/finances/payment-dispute-settlement-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_dispute_settlement_reconciler. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_dispute_settlement_reconciler. Required: report_label, report_start_date, report_end_date, confirm_disputes_are_resolved_and_expectations_are_seller_supplied, confirm_statement_rows_are_complete_for_window, resolved_disputes, statement_movements.

ebay_final_value_fee_verifier(rows, as_of_date, report_label, rate_schedules, amount_tolerance, reporting_currency, thin_contribution_threshold)

Apply your supplied progressive or whole-sale category brackets and amount-sensitive per-order fee rules to each redacted sold-order row, compare the recorded final value fee, and rank fee and contribution exposure without importing a live rate table. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/finances/final-value-fee-charge-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_final_value_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_final_value_fee_verifier. Required: report_label, as_of_date, reporting_currency, rate_schedules, rows.

ebay_held_funds_cash_queue(funds, payouts, as_of_date, marketplace, report_label, currency_code, aging_threshold_days)

Reconcile a seller-supplied eBay funds snapshot into available, processing, and on-hold buckets, then rank retryable, terminal, reversed, and aging payouts by amount and last-attempt date — with no bank fields and no release-date guesses. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/finances/held-funds-failed-payout-queue and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_held_funds_cash_queue. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_held_funds_cash_queue. Required: report_label, as_of_date, funds, payouts.

ebay_item_specifics(product, required_aspects, current_specifics, recommended_aspects)

A deterministic coverage report for seller-supplied eBay category aspects, with grounded value suggestions and required-field gaps. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/item-specifics and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_item_specifics. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_item_specifics. Required: product, required_aspects.

ebay_offer_business_policy_auditor(offers, marketplace, report_label, policy_manifest)

Compare redacted eBay offer assignments with your own supplied payment, fulfillment, and return policy manifest; then rank missing IDs, scope mismatches, family drift, and shipping-cost overrides that cannot be traced to a fulfillment service. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/offers/business-policy-assignment-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_offer_business_policy_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_offer_business_policy_auditor. Required: report_label, policy_manifest, offers.

ebay_offer_margin_floor_planner(rows, plan_label, marketplace, currency_code, thin_headroom_percent)

For each offer-eligible eBay listing, compute the lowest price that still clears your minimum unit contribution after fees and cost, the maximum margin-safe discount, and whether the discount you were about to send breaks the floor—so buyer offers stay profitable. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/offers/margin-floor-planner and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_offer_margin_floor_planner. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_offer_margin_floor_planner. Required: plan_label, rows.

ebay_order_earnings_reconciler(orders, as_of_date, marketplace, report_label, currency_code, amount_tolerance_usd, high_expense_share_pct)

Verify that gross minus expenses minus refunds equals reported order earnings for each seller-supplied, redacted eBay Order Earnings row, then rank identity mismatches, negative-contribution orders, unusually high expense shares, and refund rows whose fee credits need source review — no buyer, bank, or raw order-ID data. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/finances/order-earnings-contribution-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_order_earnings_reconciler. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_order_earnings_reconciler. Required: report_label, as_of_date, orders.

ebay_payment_dispute_organizer(currency, disputes, as_of_date, deadline_warning_days)

A deterministic organizer for seller-supplied, redacted eBay payment disputes that orders every case by response deadline, maps each requested evidence type to a provided/missing checklist, and totals amount at risk by reason and status—without touching any eBay account or predicting an outcome. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/payment-disputes/deadline-evidence-organizer and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_payment_dispute_organizer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_payment_dispute_organizer. Required: as_of_date, disputes.

ebay_promoted_advanced_budget_forecaster(rows, currency, forecaster_label, active_hours_per_day, near_budget_utilization_percent)

Project each Advanced (CPC) campaign's daily spend from your own clicks-per-day and cost-per-click bid, flag the campaigns whose spend burns the daily budget before the active window ends, and rank them by how early they exhaust without predicting demand or placing a bid. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/ads/promoted-advanced-daily-budget-burn-down and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_promoted_advanced_budget_forecaster. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_promoted_advanced_budget_forecaster. Required: forecaster_label, currency, rows.

ebay_promoted_bid_guardrail(rows, marketplace, report_label, currency_code)

Screen seller-supplied ITEM and TRENDING ad-rate guidance against listing-level economics before a campaign runs, with a conservatively rounded maximum affordable rate and exact projected contribution shortfalls. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/promoted-listings-bid-margin-guardrail and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_promoted_bid_guardrail. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_promoted_bid_guardrail. Required: report_label, rows.

ebay_promoted_channel_comparator(rows, currency, marketplace, report_label)

Compare each listing's sale-based Standard ad cost against the click-based Advanced cost per attributed sale at your own bid and conversion estimate, with the break-even conversion rate where the channels tie and the rows where neither channel is affordable ranked first. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/ads/promoted-standard-vs-advanced-cost-comparison and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_promoted_channel_comparator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_promoted_channel_comparator. Required: report_label, currency, rows.

ebay_promoted_profitability(rows, marketplace, report_label, report_level, currency_code, report_end_date, report_start_date, low_headroom_percent)

A deterministic audit of seller-supplied eBay promoted campaign, listing, keyword, or search-query rows that combines attribution with supplied unit economics and ranks zero-sale spend, losses, and thin headroom. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/promoted-listings-profitability-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_promoted_profitability. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_promoted_profitability. Required: report_start_date, report_end_date, report_label, report_level, rows.

ebay_regulatory_operating_fee_verifier(rows, as_of_date, report_label, amount_tolerance, reporting_currency, high_exposure_threshold)

Recompute eBay's Regulatory Operating fee as your location rate applied to the fee basis (item price plus any shipping and handling), compare each with the recorded charge, and rank possible overcharges and undercharges separately without claiming eBay charged incorrectly. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/finances/regulatory-operating-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_regulatory_operating_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_regulatory_operating_fee_verifier. Required: report_label, reporting_currency, as_of_date, rows.

ebay_seller_performance_surcharge_audit(rows, marketplace, report_label, currency_code, period_end_date, listing_economics, period_start_date, rate_tolerance_percent, expected_high_inad_rate_percent, expected_below_standard_rate_percent)

Isolate BELOW_STANDARD_FEE and HIGH_ITEM_NOT_AS_DESCRIBED_FEE rows in a seller-redacted eBay Finances fee export, check each supplied surcharge against its supplied fee basis and seller-expected rate, and rank listing and SKU aliases by surcharge amount, effective rate, and supplied contribution impact. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/finances/seller-performance-surcharge-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_seller_performance_surcharge_audit. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_seller_performance_surcharge_audit. Required: report_label, period_start_date, period_end_date, rows.

ebay_seller_standards(marketplace, transactions, upcoming_transactions, evaluation_period_label, upcoming_expected_defects, target_defect_rate_percent)

A deterministic projection of your eBay defect rate from seller-supplied transaction references and defect flags, measured against your own target, without touching any eBay account. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/seller-standards-defect-projection and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_seller_standards. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_seller_standards. Required: evaluation_period_label, target_defect_rate_percent, transactions.

ebay_shipping_label_reconciler(rows, marketplace, report_label, reporting_currency, variance_tolerance)

Reconcile redacted eBay shipping-label purchases, refunds, and price adjustments against seller-supplied expected costs, with orphan activity, duplicate references, currency conflicts, and monthly USD variance surfaced in one deterministic review queue. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/shipping-labels/charge-adjustment-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_shipping_label_reconciler. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_shipping_label_reconciler. Required: report_label, rows.

ebay_store_email_performance_comparator(periods, marketplace, report_label, currency_code)

Compare two to twelve equal-length, seller-supplied eBay Store Email report periods using only aggregate opens, listing-link clicks, and campaign-related sales, with honest zero-denominator handling and no subscriber data. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/store-email/performance-comparison and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_store_email_performance_comparator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_store_email_performance_comparator. Required: report_label, periods.

ebay_store_tier_optimizer(tiers, report_label, current_tier_label, reporting_currency, estimated_monthly_sales, auction_listings_per_month, fixed_price_listings_per_month)

Total each seller-supplied Store tier's subscription fee, insertion-fee overages, and optional final-value-fee component at your supplied monthly volume, rank the tiers, and solve the exact listing count where each tier breaks even with your current one. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/store-subscription-tier-break-even and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_store_tier_optimizer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_store_tier_optimizer. Required: report_label, reporting_currency, fixed_price_listings_per_month, auction_listings_per_month, current_tier_label, tiers.

ebay_traffic_funnel(records, marketplace, report_label, report_end_date, report_start_date, target_click_through_rate_percent, target_sales_conversion_rate_percent)

Turn seller-normalized eBay Traffic rows into a high-volume-first review queue: separate impression-to-view gaps from view-to-transaction gaps against your targets, with no account access or listing edits. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/traffic-funnel-bottleneck-analyzer and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_traffic_funnel. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_traffic_funnel. Required: report_start_date, report_end_date, report_label, target_click_through_rate_percent, target_sales_conversion_rate_percent, records.

ebay_traffic_source_mix_drift(snapshots, marketplace, report_label, conversion_review_threshold_points, source_mix_review_threshold_points, supplied_conversion_tolerance_points)

Compare 2–12 seller-supplied aggregate eBay Traffic snapshots across direct, off-eBay, search-results, store, and other-eBay views; verify total-view and conversion identities, then rank source-mix and conversion drift without attributing cause. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/traffic/source-mix-drift and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_traffic_source_mix_drift. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_traffic_source_mix_drift. Required: report_label, snapshots.

ebay_volume_pricing_preflight(plans, marketplace, report_label, reporting_currency, confirm_all_costs_fees_and_tiers_are_seller_supplied)

Evaluate every seller-supplied quantity discount against product cost, marketplace fees, combined shipping, packaging, and a per-unit contribution floor, then show whether shipping consolidation alone could close a shortfall. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/offers/volume-pricing-margin-shipping-preflight and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_volume_pricing_preflight. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_volume_pricing_preflight. Required: reporting_currency, report_label, confirm_all_costs_fees_and_tiers_are_seller_supplied, plans.

email_flow_pack(tone, product, sender_name, campaign_goal, audience_basis)

A deterministic three-message plain-text sequence grounded in seller-supplied product facts for an owned opt-in audience. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/marketing/email-flow-draft and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=email_flow_pack. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/email_flow_pack. Required: product, campaign_goal, audience_basis, sender_name.

etsy_currency_conversion_reconciler(rows, as_of_date, report_label, amount_tolerance, payment_account_currency, high_fee_exposure_threshold)

Recompute converted gross from your shop-currency sale amount and supplied exchange rate, recompute the conversion fee and post-fee proceeds, then rank exchange, fee, proceeds, and recorded-identity differences without claiming Etsy charged incorrectly. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/etsy/finance/currency-conversion-fee-payout-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=etsy_currency_conversion_reconciler. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/etsy_currency_conversion_reconciler. Required: report_label, payment_account_currency, as_of_date, rows.

etsy_deposit_schedule_planner(deposit_fee, marketplace, report_label, balance_events, deposit_minimum, planning_end_date, fee_free_threshold, reporting_currency, planning_start_date, first_scheduled_deposit_date, confirm_terms_are_seller_supplied, confirm_events_are_newly_available_amounts)

Apply your supplied deposit minimum, fee-free threshold, and deposit fee to dated newly-available balance events under daily, weekly, biweekly, and monthly cadences—without ranking a schedule or changing a Payment-account setting. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/etsy/finance/deposit-fee-schedule-threshold-plan and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=etsy_deposit_schedule_planner. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/etsy_deposit_schedule_planner. Required: report_label, planning_start_date, planning_end_date, first_scheduled_deposit_date, reporting_currency, confirm_terms_are_seller_supplied, confirm_events_are_newly_available_amounts, deposit_minimum, fee_free_threshold, deposit_fee, balance_events.

etsy_fee_pair_checker(currency, amount_tolerance, processing_fee_flat, processing_fee_basis, transaction_fee_basis, processing_fee_percent, recorded_processing_fee, transaction_fee_percent, recorded_transaction_fee)

Recompute one seller-supplied Etsy transaction-fee and payment-processing fee pair, compare both recorded charges inside a supplied tolerance, and keep discrepancy directions separate. It reads no account, stores no fee inputs, embeds no rate table, and changes no listing or shop. FREE TOOL: $0.00 USD; no payment is required and the result runs inline. Required: transaction_fee_basis, transaction_fee_percent, recorded_transaction_fee, processing_fee_basis, processing_fee_percent, recorded_processing_fee.

etsy_listing_fee_verifier(rows, fee_terms, as_of_date, report_label, amount_tolerance, reporting_currency, complete_activity_export_confirmed)

Derive the fee units expected for seller-supplied listing, expired-renewal, auto-renew-sold, and multi-quantity events, compare the recorded units and amounts with your supplied terms, and surface missing paired sale events without claiming Etsy charged incorrectly. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/etsy/finance/listing-renewal-quantity-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=etsy_listing_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/etsy_listing_fee_verifier. Required: report_label, as_of_date, reporting_currency, complete_activity_export_confirmed, fee_terms, rows.

etsy_offsite_ads_auditor(rows, report_label, amount_tolerance, per_order_fee_cap, reporting_currency, thin_contribution_threshold)

Recompute each seller-supplied Offsite Ads fee as min(order total x your applicable rate, the per-order cap), compare any recorded fee, and rank negative- or thin-contribution attributed orders after your product and fulfillment costs without deciding attribution or claiming a fee is wrong. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/etsy/finance/offsite-ads-fee-contribution-auditor and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=etsy_offsite_ads_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/etsy_offsite_ads_auditor. Required: report_label, reporting_currency, rows.

etsy_onsite_ads_contribution_auditor(listings, period_end, marketplace, period_start, report_label, reporting_currency, thin_contribution_threshold, budget_concentration_threshold_percent)

Turn one aggregate, seller-supplied Etsy Ads window into listing-level spend, attributed-revenue, contribution, and budget-concentration context without reading your shop, deciding attribution, or changing a campaign. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/etsy/ads/onsite-listing-contribution-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=etsy_onsite_ads_contribution_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/etsy_onsite_ads_contribution_auditor. Required: report_label, period_start, period_end, reporting_currency, listings.

etsy_plus_credit_auditor(cycles, marketplace, report_label, reporting_currency, confirm_cycles_are_complete_closed_months, confirm_unused_credits_expire_without_rollover, confirm_subscription_and_credit_terms_are_seller_supplied_current)

Reconcile your closed Etsy Plus cycles, keep listing and Ads credit pools separate, and compute realized credit, expired-unused value, and effective subscription cash cost without valuing qualitative features. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/etsy/plus/credit-expiry-net-cost-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=etsy_plus_credit_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/etsy_plus_credit_auditor. Required: report_label, confirm_cycles_are_complete_closed_months, confirm_subscription_and_credit_terms_are_seller_supplied_current, confirm_unused_credits_expire_without_rollover, cycles.

etsy_regulatory_operating_fee_verifier(rows, as_of_date, report_label, amount_tolerance, reporting_currency, high_exposure_threshold)

Recompute Etsy's Regulatory Operating fee as your location rate applied to the fee basis (item price plus any shipping, gift wrap, and personalization), compare each with the recorded charge, and rank possible overcharges and undercharges separately without claiming Etsy charged incorrectly. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/etsy/finance/regulatory-operating-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=etsy_regulatory_operating_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/etsy_regulatory_operating_fee_verifier. Required: report_label, reporting_currency, as_of_date, rows.

etsy_reserve_cash_queue(rows, as_of_date, marketplace, report_label, reporting_currency, confirm_rows_currently_held_and_terms_seller_supplied)

Compute arithmetic default-release dates from seller-supplied sale dates and displayed hold periods, keep rows past a supplied Etsy date separate from due and tracking-context rows, and total held cash by release week without predicting Etsy's actual release. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/etsy/finance/payment-account-reserve-cash-queue and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=etsy_reserve_cash_queue. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/etsy_reserve_cash_queue. Required: reporting_currency, report_label, as_of_date, confirm_rows_currently_held_and_terms_seller_supplied, rows.

etsy_share_save_credit_verifier(rows, as_of_date, marketplace, report_label, amount_tolerance, reporting_currency, seller_supplied_credit_rate_percent, confirm_credit_rate_is_current_for_report, confirm_rows_are_seller_redacted_and_qualification_is_seller_supplied)

Recompute Share & Save credit from your supplied qualification flag, order total, and current rate; keep absent recorded values and both difference directions separate; and summarize the arithmetic by order month without deciding attribution or claiming Etsy owes money. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/etsy/share-and-save/credit-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=etsy_share_save_credit_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/etsy_share_save_credit_verifier. Required: report_label, reporting_currency, as_of_date, seller_supplied_credit_rate_percent, confirm_rows_are_seller_redacted_and_qualification_is_seller_supplied, confirm_credit_rate_is_current_for_report, rows.

etsy_shipping_cost_reconciler(rows, period_end, marketplace, period_start, report_label, amount_tolerance, reporting_currency, high_subsidy_threshold)

Compare seller-supplied shipping collected with label and packaging costs row by row, separate free-shipping subsidy from buyer-paid shortfalls, and total both by your shipping-profile aliases without claiming a whole-order loss. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/etsy/finance/collected-shipping-label-cost-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=etsy_shipping_cost_reconciler. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/etsy_shipping_cost_reconciler. Required: report_label, period_start, period_end, reporting_currency, rows.

etsy_star_seller_gap_tracker(currency, marketplace, report_label, sales_in_window, orders_in_window, review_window_end, review_window_start, sales_at_risk_buffer, orders_at_risk_buffer, confirm_complete_inputs, minimum_sales_threshold, minimum_orders_threshold, rate_at_risk_buffer_percent, message_response_rate_percent, five_star_rating_share_percent, five_star_rating_threshold_percent, message_response_threshold_percent, on_time_ship_tracking_rate_percent, on_time_ship_tracking_threshold_percent)

Normalize your own message response, 5-star rating, on-time shipping with tracking, order count, and sales inputs against your supplied thresholds into one signed-gap queue, misses first, without claiming Etsy eligibility. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/etsy/performance/star-seller-eligibility-gap and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=etsy_star_seller_gap_tracker. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/etsy_star_seller_gap_tracker. Required: report_label, review_window_start, review_window_end, currency, confirm_complete_inputs, message_response_rate_percent, message_response_threshold_percent, five_star_rating_share_percent, five_star_rating_threshold_percent, on_time_ship_tracking_rate_percent, on_time_ship_tracking_threshold_percent, orders_in_window, minimum_orders_threshold, sales_in_window, minimum_sales_threshold.

etsy_transaction_fee_verifier(rows, as_of_date, report_label, amount_tolerance, reporting_currency, high_exposure_threshold)

Recompute Etsy's transaction fee (fee basis x your transaction-fee percent) and payment processing fee (basis x your percent plus a flat amount) for every order, compare each with the recorded charge, and rank arithmetic mismatches and high-dollar orders without claiming Etsy charged incorrectly. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/etsy/finance/transaction-processing-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=etsy_transaction_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/etsy_transaction_fee_verifier. Required: report_label, reporting_currency, as_of_date, rows.

fba_aged_inventory_planner(rows, horizon_months)

A deterministic break-even model that ranks seller-supplied aged FBA units by projected surcharge exposure and scores four dispositions as transparent per-unit net profit or loss, so a human decides before another age tier lands. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/aged-inventory-break-even and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_aged_inventory_planner. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_aged_inventory_planner. Required: rows.

fba_aged_inventory_surcharge_verifier(rows, report_label, amount_tolerance, reporting_currency, high_exposure_threshold)

Recompute each seller-supplied Long Term Storage Fee Charges row from charged quantity, per-unit volume, and surcharge rate, then rank discrepancies and high-dollar exposure without claiming Amazon charged incorrectly. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/aged-inventory-surcharge-charge-verifier and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_aged_inventory_surcharge_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_aged_inventory_surcharge_verifier. Required: report_label, reporting_currency, rows.

fba_fbm_cost_comparison(skus, marketplace)

A deterministic Amazon US cost comparison and XLSX worksheet using only seller-supplied FBA, FBM, product, referral, fixed-cost, and volume inputs. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fulfillment/fba-vs-fbm-costs and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_fbm_cost_comparison. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_fbm_cost_comparison. Required: skus.

fba_fee_discrepancy_audit(records, marketplace, weight_unit, report_label, currency_code, dimension_unit, weight_tolerance_pct, dimension_tolerance_pct)

A deterministic audit comparing seller-supplied FBA Fee Preview dimensions, weight, size tier, and estimated fees with the seller's own package measurements and target margin, ranking SKUs that merit remeasurement by fee impact—without touching Seller Central or claiming Amazon is wrong. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/fee-discrepancy-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_fee_discrepancy_audit. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_fee_discrepancy_audit. Required: report_label, records.

fba_fee_preview_drift_monitor(snapshots, marketplace, report_label, reporting_currency, fee_increase_review_threshold)

Diff 2–12 seller-supplied FBA Fee Preview snapshots by SKU and FNSKU, separate price-only movement from measurement, size-band, and fee changes, then rank the largest positive per-unit total-fee deltas. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/fee-preview-snapshot-drift and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_fee_preview_drift_monitor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_fee_preview_drift_monitor. Required: report_label, snapshots.

fba_inbound_defect_fee_verifier(rate_card, charge_rows, marketplace, report_label, report_end_date, amount_tolerance, report_start_date, reporting_currency, high_charge_threshold, confirm_current_source_and_rates_are_seller_supplied)

Join seller-redacted FBA inbound defect charge lines to your supplied per-unit rates by defect type; recompute units × rate, regroup dated lines under each shipment alias, and rank arithmetic differences—without looking up a rate, inferring defect cause or responsibility, or claiming Amazon billed incorrectly. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/inbound-defect-fee-charge-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_inbound_defect_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_inbound_defect_fee_verifier. Required: report_label, report_start_date, report_end_date, confirm_current_source_and_rates_are_seller_supplied, rate_card, charge_rows.

fba_inbound_root_cause(records, marketplace, report_label)

A deterministic grouping of seller-supplied FBA inbound-performance rows by problem type, shipment, SKU, coaching level, and fee, ranking repeat causes and drafting a prevention checklist, without touching any Amazon account. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/inbound-root-cause and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_inbound_root_cause. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_inbound_root_cause. Required: report_label, records.

fba_inventory_ledger_reconciliation(detail_rows, summary_rows, ranking_basis)

A deterministic control check for seller-supplied FBA Inventory Ledger summary and detail rows that validates the normalized balance equation, joins movements by inventory key, and ranks clear exceptions without claiming a loss or reimbursement. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/inventory-ledger-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_inventory_ledger_reconciliation. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_inventory_ledger_reconciliation. Required: summary_rows, detail_rows.

fba_ledger_balance_checker(ending_units, receipts_units, removals_units, starting_units, shipments_units, adjustments_units, other_events_units, transfers_in_units, transfers_out_units, customer_returns_units)

Evaluate one seller-supplied FBA Inventory Ledger summary row against the normalized unit equation and report the exact difference. It reads no account, stores no quantities, and does not establish loss or eligibility. FREE TOOL: $0.00 USD; no payment is required and the result runs inline. Required: starting_units, ending_units.

fba_liquidation_payout_verifier(rows, marketplace, report_label, report_end_date, amount_tolerance, report_start_date, reporting_currency, high_exposure_threshold, confirm_rows_are_seller_redacted, confirm_terms_are_seller_supplied)

Recompute each FBA Liquidations settlement row's fee total and net proceeds from seller-supplied terms, compare recorded amounts independently, and regroup dated payment lines under each liquidation order without claiming Amazon owes money. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/finance/fba-liquidations-payout-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_liquidation_payout_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_liquidation_payout_verifier. Required: report_label, report_start_date, report_end_date, reporting_currency, confirm_rows_are_seller_redacted, confirm_terms_are_seller_supplied, rows.

fba_low_inventory_fee_exposure(rows, as_of_date, marketplace, currency_code, short_days_of_supply_threshold)

A deterministic audit of seller-supplied FBA inventory-health rows that classifies each SKU as fee_applied, at_risk, exempt, or no_supplied_exposure, flags contradictions like a fee applied despite an exemption, and returns a stable review queue without touching Amazon. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/low-inventory-level-fee-exposure-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_low_inventory_fee_exposure. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_low_inventory_fee_exposure. Required: as_of_date, rows.

fba_placement_fee_reconciler(charges, estimates, marketplace, report_label, currency_code, tolerance_amount, tolerance_percent)

A deterministic join of your inbound-plan placement-fee estimates to the placement fees actually charged, at plan, shipment, and SKU level — so quantity, timing, and fee variances surface as a ranked dollar-exposure queue instead of hiding across two exports. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/fba/inbound/placement-fee-reconciler and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_placement_fee_reconciler. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_placement_fee_reconciler. Required: report_label.

fba_prep_fee_verifier(rate_card, charge_rows, marketplace, report_label, report_end_date, amount_tolerance, report_start_date, reporting_currency, high_charge_threshold, confirm_rates_are_seller_supplied)

Join seller-redacted FBA prep and label service charge lines to your supplied per-unit rates by prep service type; recompute units × rate, regroup the dated lines under each shipment alias, and rank arithmetic differences—without looking up a rate, inferring a prep requirement, or claiming Amazon billed incorrectly. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/finance/fba-prep-label-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_prep_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_prep_fee_verifier. Required: report_label, report_start_date, report_end_date, confirm_rates_are_seller_supplied, rate_card, charge_rows.

fba_promotion_leakage_auditor(rows, as_of_date, marketplace, currency_code, expected_max_promotions_per_row)

A deterministic audit of seller-supplied, redacted FBA shipped-item promotion rows that totals applied discount cost, recomputes post-discount contribution, and ranks negative-margin, below-floor, or unexpectedly stacked rows without touching Amazon. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/promotion-discount-leakage-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_promotion_leakage_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_promotion_leakage_auditor. Required: as_of_date, rows.

fba_reimbursement_tracker(events, as_of_date, deadline_warning_days)

A deterministic organizer for seller-supplied FBA lost, damaged, customer-return, and removal events using a dated reimbursement-window profile, with earliest/latest dates and missing suggested evidence but no eligibility claim. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/reimbursement-tracker and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_reimbursement_tracker. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_reimbursement_tracker. Required: as_of_date, events.

fba_removal_fee_verifier(rate_card, charge_rows, marketplace, report_label, report_end_date, amount_tolerance, report_start_date, reporting_currency, high_charge_threshold, confirm_rates_are_seller_supplied)

Join seller-redacted removal and disposal processing lines to your supplied action, size-tier, and weight-band per-unit rates; recompute units × rate, regroup the dated lines under each removal-order alias, and rank arithmetic differences—without looking up a rate or claiming Amazon billed incorrectly. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/finance/fba-removal-disposal-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_removal_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_removal_fee_verifier. Required: report_label, report_start_date, report_end_date, confirm_rates_are_seller_supplied, rate_card, charge_rows.

fba_removal_order_reconciler(records, as_of_date, marketplace, report_label, currency_code, stale_after_days)

A deterministic reconciliation of seller-normalized FBA removal-order rows: balance requested units against cancelled, disposed, shipped, and in-process states, then rank quantity mismatches, status conflicts, and stale work without touching Seller Central. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/removal-order-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_removal_order_reconciler. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_removal_order_reconciler. Required: as_of_date, report_label, records.

fba_replacement_margin_reconciler(as_of_date, marketplace, return_rows, report_label, currency_code, sku_economics, replacement_rows, repeat_reason_order_threshold)

Join redacted, seller-supplied FBA Replacements rows to supplied Returns rows and exact per-SKU economics, then rank unmatched replacements, quantity gaps, repeat reasons, and post-replacement contribution shortfalls without reading an account or filing a claim. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/replacement-margin-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_replacement_margin_reconciler. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_replacement_margin_reconciler. Required: report_label, as_of_date, replacement_rows, return_rows, sku_economics.

fba_reserved_dwell_detector(snapshots, marketplace, report_label, currency_code, material_unit_threshold, low_cover_days_threshold, material_value_threshold)

A deterministic diff of two or more seller-supplied FBA Reserved Inventory snapshots that splits customer-order, FC-transfer, and FC-processing units, then ranks the SKUs whose non-customer reserved units stayed identical across consecutive snapshots by dwell days, supplied unit value, and supplied availability cover—without claiming any unit is stuck. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/reserved-inventory-dwell-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_reserved_dwell_detector. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_reserved_dwell_detector. Required: report_label, snapshots.

fba_storage_fee_verifier(rows, amount_tolerance, volume_tolerance, high_cost_threshold)

A deterministic recompute-and-compare that rebuilds each seller-supplied FBA Monthly Storage Fees row from item volume, average on-hand quantity, storage rate, and incentive amount, then ranks arithmetic mismatches and high-cost ASINs for remeasurement or human review — without ever claiming Amazon is wrong. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/monthly-storage-fee-verifier and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_storage_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_storage_fee_verifier. Required: rows.

fba_storage_overage_planner(rows, scenarios, horizon_months, amount_tolerance, volume_tolerance)

A deterministic scenario planner that recomputes storage-type overage from seller-supplied usage and limits, checks the supplied fee arithmetic, and compares removal, sell-through, or capacity scenarios by fee avoided, cost, break-even month, and horizon savings. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/storage-overage-break-even and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_storage_overage_planner. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_storage_overage_planner. Required: rows, scenarios.

fba_storage_utilization_surcharge_verifier(rows, as_of_date, marketplace, report_label, amount_tolerance, reporting_currency, seller_confirms_ratio_bands_and_rates_are_current, seller_confirms_rows_are_complete_current_surcharge_lines)

Recompute each seller-supplied FBA storage-utilization surcharge as charged cubic feet times the supplied rate for its supplied utilization-ratio band, then rank signed differences and summarize them by month and band without claiming Amazon charged incorrectly. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/storage-utilization-surcharge-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_storage_utilization_surcharge_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_storage_utilization_surcharge_verifier. Required: report_label, as_of_date, reporting_currency, seller_confirms_rows_are_complete_current_surcharge_lines, seller_confirms_ratio_bands_and_rates_are_current, rows.

fba_stranded_inventory_recovery(records, as_of_date, marketplace, report_label, currency_code)

A deterministic recovery-review queue from seller-normalized FBA Stranded Inventory rows, ordered by supplied auto-removal urgency and quantity with reason, primary action, and listed value retained—without touching Seller Central. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/stranded-inventory-recovery and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_stranded_inventory_recovery. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_stranded_inventory_recovery. Required: as_of_date, report_label, records.

field_limit_validator(title, bullets, overrides, description, marketplace, search_terms)

A deterministic length check of title, bullet, description, and search-term fields against documented Amazon US, Walmart US, Shopify, and eBay US caps, with byte-vs-character counts and a truncation preview cut at the limit. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/field-limit-validate and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=field_limit_validator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/field_limit_validator.

gtin_batch_validator(codes)

A deterministic batch check for ASCII digits, GTIN-8/12/13/14 length, duplicates, and GS1 modulo-10 check digits, with a corrected digit only when the supplied code is structurally salvageable. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/identifiers/gtin-batch-validate and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=gtin_batch_validator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/gtin_batch_validator. Required: codes.

holiday_copy_refresh(tone, occasion, marketplace, product_name, current_title, verified_offer, current_bullets, seasonal_context, campaign_end_date, current_description)

A reversible seasonal listing-copy and campaign-caption draft grounded in current copy, seller-supplied seasonal context, an optional verified offer, and a removal date. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/holiday-copy-refresh and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=holiday_copy_refresh. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/holiday_copy_refresh. Required: product_name, occasion, current_title, seasonal_context, campaign_end_date.

image_alt_text_pack(images, product, caption_max_characters, alt_text_max_characters)

A deterministic alt-text, SEO-caption, and filename pack for up to 12 supplied marketplace gallery image descriptions. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/marketplace-images/alt-text-pack and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=image_alt_text_pack. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/image_alt_text_pack. Required: product, images.

image_compliance_precheck(sku, animated, background, file_format, marketplace, file_size_mb, product_name, width_pixels, has_watermark, height_pixels, is_placeholder, is_stock_photo, item_condition, has_added_border, product_fill_percent, has_retailer_branding, has_added_text_overlay, has_promotional_claims, shows_unincluded_props, is_actual_product_photo, accurately_represents_item, has_logo_or_graphic_overlay, shows_multiple_product_views)

A deterministic, text-only preflight that applies a dated Amazon US, Walmart US, Shopify, or eBay US image profile to the file metadata and composition observations you declare, returning sourced findings and concrete fixes without downloading or inspecting an image. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/images/compliance-precheck and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=image_compliance_precheck. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/image_compliance_precheck. Required: marketplace, product_name, file_format, width_pixels, height_pixels, file_size_mb, background.

keyword_cannibalization_detector(listing_a, listing_b, marketplace, ignore_terms, include_phrases, listing_a_label, listing_b_label, primary_terms_a, primary_terms_b, max_shared_terms)

A deterministic two-listing overlap map with exact occurrences, fields, seller-designated primary terms, transparent signal levels, unique terms, and review actions—without pretending shared copy proves search cannibalization. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/keyword-cannibalization and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=keyword_cannibalization_detector. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/keyword_cannibalization_detector. Required: listing_a, listing_b.

keyword_coverage_snapshot(your_copy, marketplace, competitor_copy)

Compare supplied listing copy with one supplied competitor listing and report term overlap, coverage, and a screened gap-term preview. It fetches nothing, stores no submitted copy, and does not establish search demand. FREE TOOL: $0.00 USD; no payment is required and the result runs inline. Required: your_copy, competitor_copy.

keyword_gap(marketplace, ignore_terms, your_listing, max_gap_terms, include_phrases, competitor_brands, competitor_listings)

A deterministic keyword gap map between your listing copy and up to three competitor listings you supply, with usage counts, priority, and placement guidance. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/keyword-gap and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=keyword_gap. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/keyword_gap. Required: your_listing, competitor_listings.

listing_appeal(tone, marketplace, notice_text, evidence_available, listing_identifier, suppression_reason, corrective_actions_taken, preventive_actions_taken)

A bounded appeal draft built only from the marketplace notice you paste and the corrective steps you confirm you completed, with an evidence checklist and blocking gaps. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/appeal-draft and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=listing_appeal. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/listing_appeal. Required: listing_identifier, suppression_reason, notice_text.

listing_audit(listing, product)

Paste one draft and its verified product facts to get a deterministic, channel-aware audit for Amazon US, Walmart US, Shopify, or eBay US—complete with field-level findings, measured limits, and an honest readiness result. PAID SKILL: $0.05 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listing/audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=listing_audit. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/listing_audit. Required: product, listing.

listing_build(tone, product, include_search_terms)

A factual title, feature highlights, description, and search terms or tags for Amazon US, Walmart US, Shopify, or eBay US. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listing/build and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=listing_build. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/listing_build. Required: product.

listing_title_variants(product, current_title, focus_keywords)

Three deterministic, channel-bounded title drafts—keyword-first, benefit-first, and compact—with keyword coverage and a rationale for each. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/title-variants and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=listing_title_variants. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/listing_title_variants. Required: product.

margin_parity_checker(sku, channels, product_name, baseline_channel, seller_price_floor, product_cost_per_unit, minimum_advertised_price, price_parity_tolerance_percent)

A deterministic comparison of one SKU across two to four seller-supplied price, volume, percentage-fee, fulfillment, shipping, variable-cost, and period-fixed-cost stacks, with baseline-margin what-if prices and explicit floor, MAP-reference, and price-parity flags. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/pricing/multi-channel-margin-parity and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=margin_parity_checker. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/margin_parity_checker. Required: sku, product_name, product_cost_per_unit, baseline_channel, channels.

marketplace_ads_kit(item_id, product, keywords, max_bid_usd, daily_budget_usd, negative_keywords, max_ad_rate_percent, target_acos_percent, conversion_rate_percent)

A draft or paused advertising plan for Amazon, Walmart, Shopify external acquisition, or eBay Promoted Listings. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/marketplace-ads/launch-kit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=marketplace_ads_kit. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/marketplace_ads_kit. Required: item_id, product, target_acos_percent, daily_budget_usd.

marketplace_image_brief(avoid, product, variants, must_show, objective, image_count, brand_colors, included_items, available_assets, include_alt_text)

A prioritized product shot list with technical specifications, factual overlays, alt text, asset gaps, and compliance checks. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/marketplace-images/brief and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=marketplace_image_brief. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/marketplace_image_brief. Required: product.

marketplace_listing_copy_checker(title, description, marketplace, search_terms, feature_highlights)

Measure listing copy fields and flag repeated terms for human review. This does not validate marketplace policy or category limits. FREE TOOL: $0.00 USD; no payment is required and the result runs inline.

marketplace_upload_starter_pack

Generate a blank, preparation-only ZIP of marketplace upload templates. It does not publish or modify seller accounts. FREE TOOL: $0.00 USD; no payment is required and the result runs inline.

omnichannel_pack(sku, gtin, product, currency, quantity, condition, image_urls, ebay_category_id, country_of_origin, ebay_marketplace_id, walmart_product_type, ebay_return_policy_id, ebay_payment_policy_id, shopify_product_category, ebay_fulfillment_policy_id, ebay_merchant_location_key)

Turn one seller-supplied product record into separate Amazon US, Walmart US, Shopify, and eBay US listing drafts, draft-safe preparation files, a readiness workbook, and human hand-off instructions—without publishing to any account. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/omnichannel/launch-pack and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=omnichannel_pack. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/omnichannel_pack. Required: product, sku.

payout_reconciliation(marketplace, currency_code, settlement_id, expected_orders, match_tolerance, deposited_amount, settlement_components)

A deterministic reconciliation of seller-normalized Amazon Flat File V2 or eBay transaction rows against expected order economics and a supplied bank deposit, without accessing either account. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/marketplace-finance/payout-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=payout_reconciliation. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/payout_reconciliation. Required: marketplace, settlement_id, deposited_amount, expected_orders, settlement_components.

ppc_kit(asin, product, keywords, max_bid_usd, daily_budget_usd, negative_keywords, target_acos_percent, conversion_rate_percent)

An Amazon advertising planning workbook with AUTO and MANUAL campaign drafts, keyword structure, bids, and safeguards. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon-ppc/launch-kit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ppc_kit. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ppc_kit. Required: asin, product, target_acos_percent, daily_budget_usd.

pricing_what_if(unit_cost, marketplace, product_name, current_price, monthly_units, candidate_prices, fixed_fee_per_unit, referral_fee_percent)

A deterministic contribution-margin and break-even comparison of up to eight candidate prices against your current price and costs. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/pricing/break-even-what-if and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=pricing_what_if. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/pricing_what_if. Required: product_name, current_price, unit_cost, monthly_units, candidate_prices.

product_description_html(description, marketplace, feature_highlights)

A deterministic formatter that discards supplied markup, escapes every retained character, and rebuilds your copy with a tiny marketplace-specific tag profile—plus a plain-text fallback and exact sanitization counts. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/description-html and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=product_description_html. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/product_description_html. Required: description.

promotion_profit_guard(scenarios, unit_cost, list_price, marketplace, product_name, referral_fee_percent, fulfillment_cost_per_unit)

A deterministic comparison of up to eight promotion scenarios using your discount, expected units, referral, fulfillment, redemption, and fixed fees. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/pricing/promotion-profit-guard and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=promotion_profit_guard. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/promotion_profit_guard. Required: product_name, list_price, unit_cost, scenarios.

regulated_claim_check(title, bullets, evidence, description, marketplace, product_name, category_profile)

A deterministic category-profile screen that separates remove-or-escalate claims from evidence-review claims without pretending to verify evidence or marketplace compliance. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/regulated-claim-check and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=regulated_claim_check. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/regulated_claim_check. Required: category_profile, product_name, title.

reorder_point_calculator(sku, unit_cost, marketplace, product_name, inbound_units, lead_time_days, average_daily_sales, demand_std_dev_daily, current_on_hand_units, service_level_percent, lead_time_std_dev_days, minimum_order_quantity)

A deterministic calculator that turns your sales velocity, lead time, demand and lead-time variability, and target service level into a reorder point and a statistically-sized safety stock, then compares it with your on-hand and inbound units to say whether to reorder now. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/inventory/reorder-point and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=reorder_point_calculator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/reorder_point_calculator. Required: product_name, average_daily_sales, lead_time_days.

restock_plan(skus, marketplace, target_cover_days, review_period_days, default_lead_time_days)

A deterministic reorder plan for up to one hundred supplied SKUs: days of cover, reorder point, order-within window, and a suggested quantity rounded to your case pack. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/inventory/restock-plan and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=restock_plan. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/restock_plan. Required: skus.

return_policy_generator(store_name, marketplace, refund_methods, return_window_days, contact_instructions, non_returnable_items, condition_requirements, restocking_fee_percent, who_pays_return_shipping)

A deterministic assembler that turns your return window, shipping-payer choice, restocking fee, refund methods, conditions, and non-returnable items into ready-to-review policy copy for Amazon US, Walmart US, Shopify, or eBay US. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/policies/return-policy and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=return_policy_generator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/return_policy_generator. Required: store_name, return_window_days, who_pays_return_shipping, refund_methods.

return_reason_analysis(sku, returns, units_sold, marketplace, product_name)

A deterministic clustering of up to two hundred supplied return-reason lines into ranked root-cause buckets with prioritized fix actions. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/quality/return-reason-analysis and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=return_reason_analysis. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/return_reason_analysis. Required: product_name, returns.

review_request_templater(tone, channel, brand_name, custom_note, marketplace, product_name, variant_count, include_support_offer)

A deterministic templater that assembles rating-neutral, incentive-free review-request messages for Buyer-Seller Messaging, the Request-a-Review button, or a package insert, and scans any custom note you supply against a fixed list of prohibited patterns (incentives, positive-rating steering, review gating, external links, pressure, and removal requests). PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/customers/review-request-templates and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=review_request_templater. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/review_request_templater. Required: product_name.

review_response(tone, rating, marketplace, review_text, include_support_invitation)

A concise response draft plus concern routing and specialist-review flags for Amazon US, Walmart US, Shopify, or eBay US reviews. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/reviews/response-draft and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=review_response. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/review_response. Required: marketplace, rating, review_text.

safet_claim_queue(claims, currency, as_of_date, filing_window_days, deadline_warning_days)

A deterministic queue for seller-supplied, redacted merchant-fulfilled SAFE-T refund cases that computes each filing deadline from your refund date plus a policy window you configure, orders every case by urgency, and maps a per-reason evidence checklist to provided/missing—without touching any Amazon account or asserting eligibility. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/safet-claims/deadline-evidence-queue and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=safet_claim_queue. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/safet_claim_queue. Required: as_of_date, claims.

search_query_performance(rows, cart_rate_target_percent, click_rate_target_percent, purchase_rate_target_percent)

A deterministic Brand Analytics SQP transform that ranks seller-supplied ASIN/query rows by click, cart-add, or purchase rate gaps, preserving Amazon query totals and calculating transparent ASIN shares without changing a listing. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/brand-analytics/search-query-performance and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=search_query_performance. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/search_query_performance. Required: rows.

search_term_spend_waste(rows, currency_code, phrase_min_rows, protected_terms, harvest_min_orders, negative_min_spend, negative_min_clicks, target_acos_percent)

A deterministic Amazon Sponsored Products report analysis that classifies supplied rows for negative-exact, harvest-exact, high-ACoS, or monitor review and surfaces repeated negative-phrase tokens without changing a campaign. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon-ads/search-term-spend-waste and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=search_term_spend_waste. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/search_term_spend_waste. Required: rows.

seasonal_demand_calendar(category, marketplace, product_name, lead_time_days, extra_peak_months, listing_refresh_lead_days)

A deterministic 12-month planning calendar built from a transparent US-retail seasonality knowledge base for your category archetype, with per-month demand tendencies, retail events, and order-by and listing-refresh windows computed from your supplier lead time. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/planning/seasonal-demand-calendar and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=seasonal_demand_calendar. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/seasonal_demand_calendar. Required: category, product_name.

ship_by_risk_queue(records, as_of_at, risk_window_hours)

Combine minimal, non-PII Amazon, Walmart, and eBay unshipped lines into one earliest-deadline-first queue with exact time remaining, overdue state, and risk-window totals—without touching an order. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/orders/ship-by-risk-queue and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ship_by_risk_queue. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ship_by_risk_queue. Required: as_of_at, records.

shipping_template_cost(zones, marketplace, template_name, actual_weight_lb, dimensional_weight_lb, expected_monthly_orders, round_billable_weight_up, packaging_cost_per_order_usd, marketplace_fee_percent_on_shipping)

Transparent per-zone and monthly shipping arithmetic from seller-supplied weights, carrier rates, surcharges, packaging cost, buyer charges, fee rate, order mix, and expected orders. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/shipping/template-cost-estimate and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=shipping_template_cost. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/shipping_template_cost. Required: template_name, actual_weight_lb, expected_monthly_orders, zones.

sku_collision_snapshot(skus, separator, max_length, letter_case)

Normalize 2–50 supplied SKU strings under one case, separator, and length convention and report post-normalization collision groups. It reads no account, checks no external catalog, and changes nothing. FREE TOOL: $0.00 USD; no payment is required and the result runs inline. Required: skus.

sku_normalizer(items, separator, max_length, letter_case, existing_skus)

A deterministic batch transform that applies your ASCII case, separator, and length convention, then finds same-batch and existing-SKU collisions and drafts bounded unique alternatives. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/catalog/sku-normalize and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=sku_normalizer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/sku_normalizer. Required: items.

subscribe_save_stockout_margin_planner(rows, as_of_date, marketplace, currency_code, target_retention_percent)

A deterministic Subscribe & Save planning queue that joins seller-supplied Replenishment performance and 30/60/90-day forecasts with inventory timing and unit economics, exposing shortage, retention, lost-revenue, and margin tradeoffs without placing an order. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/replenishment/subscribe-save-stockout-margin-plan and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=subscribe_save_stockout_margin_planner. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/subscribe_save_stockout_margin_planner. Required: as_of_date, rows.

suppressed_listing_diagnosis(title, bullets, description, marketplace, notice_text, product_name, listing_status, recent_changes, observed_signals, evidence_available)

Deterministic triage of seller-supplied listing status, notice text, observed symptoms, and copy into ranked diagnostic tracks, exact checks, evidence to gather, and a bounded action sequence. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/suppression-diagnosis and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=suppressed_listing_diagnosis. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/suppressed_listing_diagnosis. Required: product_name, listing_status.

tiktok_affiliate_margin_preflight(rows, report_label, reporting_currency, current_terms_and_economics_confirmed)

Combine your product price, costs, TikTok Shop fee bases and rates, planned affiliate commission, and minimum contribution. The result ranks non-positive and below-floor plans and solves a conservative maximum creator rate from your own economics without predicting sales or recommending a rate. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/tiktok-shop/affiliate/commission-margin-preflight and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=tiktok_affiliate_margin_preflight. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/tiktok_affiliate_margin_preflight. Required: report_label, reporting_currency, current_terms_and_economics_confirmed, rows.

tiktok_shop_fee_verifier(rows, as_of_date, report_label, amount_tolerance, reporting_currency, high_exposure_threshold)

Recompute TikTok Shop's commission (referral) fee (fee basis x your category commission percent) and transaction fee (basis x your percent plus an optional flat amount) for every order, compare each with the recorded charge, and rank arithmetic mismatches and high-dollar orders without claiming TikTok Shop charged incorrectly. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/tiktok-shop/finance/commission-transaction-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=tiktok_shop_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/tiktok_shop_fee_verifier. Required: report_label, reporting_currency, as_of_date, rows.

tiktok_shop_settlement_reconciler(rows, as_of_date, report_label, amount_tolerance, high_fee_share_pct, reporting_currency)

Recompute every TikTok Shop order settlement as customer payment plus platform co-funding minus your supplied fees and refunds, compare it with the recorded amount, and rank identity mismatches, negative-contribution rows, high fee-share rows, and co-funded refund rows without claiming a payout is wrong. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/tiktok-shop/finance/order-settlement-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=tiktok_shop_settlement_reconciler. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/tiktok_shop_settlement_reconciler. Required: report_label, reporting_currency, as_of_date, rows.

title_optimizer(product, current_title)

A deterministic Amazon US, Walmart US, Shopify, or eBay US title recommendation with length and keyword-coverage feedback. PAID SKILL: $0.02 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listing/title-optimizer and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=title_optimizer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/title_optimizer. Required: product.

variation_family_plan(variants, marketplace, parent_label, theme_attributes)

A deterministic review of two to fifty supplied SKUs against a one-to-three-attribute variation theme. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/catalog/variation-family-plan and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=variation_family_plan. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/variation_family_plan. Required: marketplace, parent_label, theme_attributes, variants.

walmart_assortment_margin_qualifier(rows, economics, marketplace, report_label, currency_code, minimum_unit_contribution)

A deterministic filter for seller-supplied Walmart Assortment Recommendations rows that applies seller-entered price, costs, referral-fee rate, contribution floor, and sourcing availability while keeping Walmart's demand and competition fields explicitly observational. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/assortment-recommendations/margin-qualification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_assortment_margin_qualifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_assortment_margin_qualifier. Required: report_label, minimum_unit_contribution, rows.

walmart_buy_box_gap_planner(records, as_of_date, marketplace, report_label, currency_code)

Model the observed Walmart delivered-price gap against seller-supplied product, fulfillment, fee, and contribution-floor economics, then separate full-match, partial-only, and floor-blocked rows without touching a price. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/buy-box-margin-gap-plan and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_buy_box_gap_planner. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_buy_box_gap_planner. Required: as_of_date, report_label, records.

walmart_cancellation_hotspot_queue(rows, marketplace, report_label, report_end_date, report_start_date, minimum_hotspot_rows, seller_priority_reasons)

Group seller-redacted Walmart cancellation lines by offer, item, reason, state, carrier, and condition; rank seller-selected priority reasons and repeated cohorts while keeping order-to-cancellation delay transparent. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/cancellations/reason-region-hotspots and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_cancellation_hotspot_queue. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_cancellation_hotspot_queue. Required: report_label, report_start_date, report_end_date, rows.

walmart_catalog_publish_drift(snapshots, marketplace, report_label, published_statuses, price_change_review_threshold_percent)

Compare 2–12 seller-supplied Walmart Item report snapshots by SKU and separate publish-status, Buy Box eligibility, price, category, shelf, shipping-method, and fulfillment-lag changes, then rank newly unpublished or newly ineligible SKUs by supplied recent units and unit contribution. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/catalog/publish-buybox-drift and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_catalog_publish_drift. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_catalog_publish_drift. Required: report_label, snapshots.

walmart_cpa_opt_in_drift(snapshots, marketplace, report_label, full_catalog_snapshots_confirmed)

Compare seller-confirmed full-catalog Walmart Competitive Price Adjustment Item Opt-in files and rank newly eligible but opted-out, opted-in to opted-out, and newly absent SKUs using optional supplied sales and contribution context. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/pricing/cpa-opt-in-drift and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_cpa_opt_in_drift. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_cpa_opt_in_drift. Required: report_label, full_catalog_snapshots_confirmed, snapshots.

walmart_delivery_lateness_hotspots(rows, as_of_date, marketplace, report_label, currency_code)

Turn redacted, seller-supplied Walmart Delivery Defect observations into exact promise-date variance, past-due missing buckets, and ranked hotspots by carrier, region, ship node, and item — without exposing buyer or order data or assigning fault. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/delivery-defects/lateness-hotspots and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_delivery_lateness_hotspots. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_delivery_lateness_hotspots. Required: report_label, as_of_date, rows.

walmart_fitment_gap_prioritizer(item_values, marketplace, report_label, missing_attributes, reporting_currency, missing_aces_coverage)

Join seller-supplied rows from Walmart's Fitment Missing ACES Coverage and Fitment Missing Attributes reports, deduplicate shared items, and rank the highest-value gaps using optional supplied sales, unit, contribution, brand, and product-family data — with an exact missing-field checklist per item. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/automotive/aces-fitment-gap-prioritizer and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_fitment_gap_prioritizer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_fitment_gap_prioritizer. Required: report_label.

walmart_fulfillment_root_cause(rows, as_of_date, marketplace, report_label, report_window_days)

A deterministic, non-PII ranker for seller-normalized Walmart fulfillment-performance aggregates across seven metrics, with seller-review buckets and repeat driver groups by SKU, carrier, method, and location. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/fulfillment-performance-root-cause and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_fulfillment_root_cause. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_fulfillment_root_cause. Required: as_of_date, report_window_days, report_label, rows.

walmart_inr_loss_driver_queue(rows, summary, marketplace, report_label, currency_code, gmv_tolerance, driver_rate_tolerance_points)

Reconcile a seller-supplied Walmart Item Not Received summary to redacted detail rows, separate seller-accountable from non-accountable classifications, and rank the SKUs and safe operational cohorts carrying the most measured GMV loss. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/item-not-received/loss-driver-queue and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_inr_loss_driver_queue. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_inr_loss_driver_queue. Required: report_label, summary, rows.

walmart_inventory_forecast_gap_planner(marketplace, report_rows, supply_rows, report_label, snapshot_date, target_horizon_days)

Join seller-supplied Walmart Inventory Recommendations rows to available and confirmed-inbound units, calculate transparent gaps at the supplied 14/30/45/60-day horizons, and rank missing supply, inconsistent forecast curves, and earliest gaps. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/inventory-recommendations/forecast-supply-gap-plan and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_inventory_forecast_gap_planner. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_inventory_forecast_gap_planner. Required: report_label, snapshot_date, report_rows, supply_rows.

walmart_item_performance_trend(records, marketplace, report_label, currency_code, current_end_date, baseline_end_date, current_start_date, baseline_start_date)

A deterministic equal-period comparison of seller-supplied Walmart Item Performance metrics, separating observed traffic, conversion, commission, cancellation, refund, GMV, and net changes without inventing a cause. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/item-performance-trend and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_item_performance_trend. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_item_performance_trend. Required: baseline_start_date, baseline_end_date, current_start_date, current_end_date, report_label, records.

walmart_lag_time_drift_auditor(current, baseline, manifest, marketplace, report_label, currency_code, outlier_min_category_size)

Diff two seller-supplied Walmart Lag Time report snapshots, compare current settings with an optional seller-approved category/SKU manifest, and rank new, missing, changed, or statistically unusual configurations by supplied commercial exposure — without changing a setting or predicting delivery performance. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/fulfillment/lag-time-configuration-drift and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_lag_time_drift_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_lag_time_drift_auditor. Required: report_label, baseline, current.

walmart_listing_quality_ranker(records, as_of_date, marketplace, report_label, currency_code, target_conversion_rate_percent)

A deterministic within-batch ranker for seller-normalized Walmart Item Listing Quality rows, combining supplied issue impact, component-score gaps, 30-day page views, conversion, GMV, and Customer Favorite status without touching a listing. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/listing-quality-opportunity-ranker and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_listing_quality_ranker. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_listing_quality_ranker. Required: as_of_date, report_label, target_conversion_rate_percent, records.

walmart_negative_feedback_trends(snapshots, marketplace, report_label, currency_code, rate_tolerance_points)

Compare two to twelve seller-supplied aggregate Walmart negative-feedback summaries and rank seller-accountable driver rates by latest movement and three-snapshot acceleration, while keeping overall rate, impacted orders, GMV loss, risk labels, and non-accountable drivers separate. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/seller-performance/negative-feedback-driver-trends and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_negative_feedback_trends. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_negative_feedback_trends. Required: report_label, snapshots.

walmart_pro_seller_badge_gap_tracker(metrics, marketplace, report_label, snapshot_date, confirm_complete_metric_set)

Normalize seller-supplied at-least and at-most badge thresholds into comparable signed gaps, rank the largest misses, and flag passing metrics inside your risk buffers without claiming Walmart eligibility. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/pro-seller-badge/eligibility-gap and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_pro_seller_badge_gap_tracker. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_pro_seller_badge_gap_tracker. Required: report_label, snapshot_date, confirm_complete_metric_set, metrics.

walmart_promotion_schedule_auditor(rows, as_of_date, marketplace, report_label, reporting_currency)

A deterministic audit of seller-supplied Walmart Promotions report rows that checks schedule windows, lifecycle/date alignment, currencies, same-currency discount arithmetic, and comparison-price consistency without touching a live offer. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/promotions/schedule-price-exception-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_promotion_schedule_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_promotion_schedule_auditor. Required: report_label, as_of_date, rows.

walmart_query_share_gap_ranker(rows, marketplace, week_start_date, minimum_share_gap_threshold)

A deterministic pass over a seller-supplied Walmart Search Insights (SQR) export that measures the drop from impressions share to click share to add-to-cart share per query, and ranks the queries whose downstream share falls most—so you can see whether the leak is at the click stage or the cart stage before touching any listing. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/search-insights/query-share-gap-ranking and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_query_share_gap_ranker. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_query_share_gap_ranker. Required: week_start_date, rows.

walmart_referral_fee_verifier(rows, as_of_date, report_label, rate_schedules, amount_tolerance, reporting_currency, high_exposure_threshold)

Recompute each seller-supplied Walmart completed-sale referral fee from your own category schedule on the total sales price, compare it with the recorded fee, and rank discrepancies and high-dollar exposure without deciding a category or claiming Walmart charged incorrectly. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/finance/referral-fee-charge-verifier and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_referral_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_referral_fee_verifier. Required: report_label, as_of_date, reporting_currency, rate_schedules, rows.

walmart_referral_incentive_auditor(snapshots, report_label, near_expiry_days, reporting_currency, minimum_unit_contribution)

Compare complete seller-supplied Reduced Referral Fee snapshots, rank status and expiry changes, and test target-price contribution against your costs and floor without enrolling an item or recommending a price. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/pricing/reduced-referral-fee-incentive-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_referral_incentive_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_referral_incentive_auditor. Required: report_label, reporting_currency, snapshots.

walmart_repricer_guardrail_auditor(rows, marketplace, report_date, currency_code)

Audit seller-supplied Walmart Pricing Insights rows against seller-owned unit economics. The deterministic review queue surfaces missing or inverted repricer bounds, current prices outside the supplied range, and minimum or suggested prices below your calculated contribution floor—without changing a price. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/pricing-insights/repricer-margin-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_repricer_guardrail_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_repricer_guardrail_auditor. Required: report_date, rows.

walmart_return_override_auditor(rows, marketplace, policy_rules, report_label)

Audit a seller-supplied Walmart Return Item Overrides report against product-family consistency and your own approved policy matrix, surfacing keep-it/restricted contradictions, missing reasons or aliases, duplicate overrides, and family conflicts in one severity-ranked review queue — without touching a single return setting. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/return-overrides/exception-auditor and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_return_override_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_return_override_auditor. Required: report_label, rows.

walmart_returns_loss_driver_trends(snapshots, marketplace, report_label, currency_code, rate_tolerance_points)

Compare two to twelve seller-supplied aggregate Walmart Returns Performance summaries: track return-rate, impacted-order, and GMV-loss changes, then rank supplied return drivers by latest magnitude with movement, acceleration, and group share, keeping seller-accountable and non-accountable drivers separate. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/seller-performance/returns-loss-driver-trends and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_returns_loss_driver_trends. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_returns_loss_driver_trends. Required: report_label, snapshots.

walmart_rich_media_brief(avoid, product, objective, brand_tone, module_count, available_assets)

A deterministic three-to-five-block Walmart planning brief with grounded copy, image direction, alt text, factual basis, and asset gaps. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/rich-media-brief and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_rich_media_brief. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_rich_media_brief. Required: product.

walmart_search_rank_divergence(snapshots, marketplace, deterioration_threshold)

Compare two to twelve dated Walmart Search Insights report snapshots and rank items whose impressions, clicks, add-to-cart, and sales ranks diverge or deteriorate between their earliest and latest appearance, preserving transactability, Buy Box win rate, and recommended keywords as review context. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/search-insights/rank-divergence and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_search_rank_divergence. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_search_rank_divergence. Required: snapshots.

walmart_search_rank_gap_prioritizer(rows, marketplace, week_start_date, minimum_gap_threshold)

A deterministic pass over a seller-supplied weekly Walmart Search Insights report that measures the gaps between funnel-stage ranks (impressions, clicks, add-to-cart, sales) and ranks the items whose relative position drops most, so you can see whether leakage is concentrated at one stage. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/search-insights/rank-gap-prioritization and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_search_rank_gap_prioritizer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_search_rank_gap_prioritizer. Required: week_start_date, rows.

walmart_search_rank_gap_snapshot(sales_rank, clicks_rank, add_to_cart_rank, impressions_rank)

Calculate the impression-to-click, click-to-cart, and cart-to-sales rank gaps for one seller-supplied Walmart Search Insights row and name the largest relative drop. It reads no account, stores no ranks, and does not establish a root cause or performance impact. FREE TOOL: $0.00 USD; no payment is required and the result runs inline. Required: impressions_rank, clicks_rank, add_to_cart_rank, sales_rank.

walmart_seller_response_trends(snapshots, marketplace, report_label, rate_tolerance_points)

Compare two to twelve seller-supplied aggregate Walmart Seller Response Rate summaries: track within-48-hours response-rate and impacted-customer changes, then rank supplied contact drivers by latest magnitude with movement, acceleration, and group share, keeping seller-accountable and non-accountable drivers separate. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/seller-performance/seller-response-driver-trends and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_seller_response_trends. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_seller_response_trends. Required: report_label, snapshots.

walmart_sem_billing_reconciler(marketplace, billing_rows, report_label, minimum_gap_days, reporting_currency, performance_periods, amount_match_tolerance)

Reconcile seller-supplied Walmart SEM billing-history rows against aggregate performance-report spend totals, with non-SUCCESS statuses, duplicate rows, overlapping charge windows, amount mismatches, billing coverage gaps, and uninvoiced spend periods ranked in one deterministic review queue. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/sem-billing/charge-credit-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_sem_billing_reconciler. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_sem_billing_reconciler. Required: report_label, billing_rows.

walmart_sem_contribution_auditor(rows, marketplace, report_label, currency_code, report_end_date, report_start_date, low_headroom_percent)

Combine seller-supplied Walmart SEM daily item performance with unit economics, then rank zero-sale spend, contribution losses, and thin remaining headroom without touching a campaign. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/sem/post-ad-contribution-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_sem_contribution_auditor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_sem_contribution_auditor. Required: report_start_date, report_end_date, report_label, rows.

walmart_sem_item_eligibility_queue(items, marketplace, report_label, currency_code, snapshot_date, issue_metadata, recent_sales_window_days)

Join seller-supplied Walmart SEM item diagnostics to supplied issue-type metadata, then rank BLOCKED and LIMITED offers by fixability, repeated issue reach, campaign exposure, and optional seller economics — without touching a campaign or item. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/sem/item-eligibility-blocker-queue and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_sem_item_eligibility_queue. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_sem_item_eligibility_queue. Required: report_label, snapshot_date, issue_metadata, items.

walmart_shipping_coverage_drift(current, baseline, marketplace, report_label, currency_code)

Diff two seller-supplied Walmart Shipping Program snapshots to flag every SKU whose publish or lifecycle status, Two-Day or Three-Day participation, template, or coverage area changed, ranking fast-shipping coverage losses first — without touching a template or enrollment. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/shipping-program/coverage-drift-monitor and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_shipping_coverage_drift. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_shipping_coverage_drift. Required: report_label, baseline, current.

wfs_additional_surcharge_verifier(charge_rows, marketplace, report_label, report_end_date, amount_tolerance, report_start_date, reporting_currency, high_charge_threshold, confirm_applicability_and_rates_are_seller_supplied)

Stack explicit seller-supplied apparel, hazardous-material, low-retail-price, and oversize applicability flags and per-unit rates on the supplied base pick-and-pack fee, then rank per-unit and total arithmetic differences without inferring an item classification. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/wfs/additional-fulfillment-surcharge-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=wfs_additional_surcharge_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/wfs_additional_surcharge_verifier. Required: report_label, report_start_date, report_end_date, confirm_applicability_and_rates_are_seller_supplied, charge_rows.

wfs_customer_return_reconciler(returns, marketplace, report_label, currency_code, match_tolerance, settlement_lines)

A deterministic reconciler for a seller-supplied Walmart WFS Customer Returns report: it groups returns by Walmart-supplied reason, status, and disposition with exact refund, fee, and cost-share totals, then checks the reported totals against your supplied settlement refund, fee, and credit amounts and flags every total that doesn't match within tolerance—without reading any Walmart account or buyer identity. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/wfs-returns/cost-disposition-reconciler and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=wfs_customer_return_reconciler. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/wfs_customer_return_reconciler. Required: report_label, returns.

wfs_fulfillment_fee_verifier(rate_card, charge_rows, marketplace, report_label, report_end_date, amount_tolerance, report_start_date, reporting_currency, high_charge_threshold, confirm_rates_are_seller_supplied)

Match each seller-redacted WFS charge row to exactly one supplied size-tier and weight band, recompute fulfilled units times your per-unit fee, and rank arithmetic differences without importing a rate table or claiming Walmart billed incorrectly. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/wfs/fulfillment-pick-pack-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=wfs_fulfillment_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/wfs_fulfillment_fee_verifier. Required: report_label, report_start_date, report_end_date, confirm_rates_are_seller_supplied, rate_card, charge_rows.

wfs_hazmat_hold_recovery_queue(items, marketplace, report_label, currency_code, snapshot_date, recent_sales_window_days)

Normalize seller-supplied Walmart WFS hazmat holds into a status- and age-ordered recovery queue, group repeated error code and field combinations, and separate seller-actionable holds from items still in review or marked prohibited — without classifying a substance or resubmitting an item. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/wfs/hazmat-hold-recovery-queue and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=wfs_hazmat_hold_recovery_queue. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/wfs_hazmat_hold_recovery_queue. Required: report_label, snapshot_date, items.

wfs_inbound_error_preflight(rows, reference_sample_size)

A deterministic preflight for seller-supplied Walmart WFS inbound-order error records that deduplicates repeated issues across resubmissions, keys each item-level defect to the item so one fix clears every affected order, ranks the distinct issues by class priority and volume, and attaches a per-class correction checklist—without touching any Walmart account or resubmitting an order. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/wfs-inbound/error-preflight-queue and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=wfs_inbound_error_preflight. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/wfs_inbound_error_preflight. Required: rows.

wfs_inbound_transport_fee_verifier(charges, currency, marketplace, report_label, report_end_date, amount_tolerance, report_start_date, high_charge_threshold)

Recompute each seller-redacted WFS inbound transportation row from billed pounds or units and your supplied rate, rank discrepancies without netting their direction, and roll them up by seller-owned shipment alias without claiming a charge is wrong. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/wfs/inbound-transportation-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=wfs_inbound_transport_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/wfs_inbound_transport_fee_verifier. Required: report_label, report_start_date, report_end_date, currency, charges.

wfs_inventory_reconciliation(rows, marketplace, report_label, currency_code, period_end_date, period_start_date)

A deterministic control check for seller-supplied WFS Inventory Reconciliation rows that recomputes ending inventory from beginning quantity and Walmart's sold, returned, lost, found, damaged, and other-adjustment movements without claiming loss or fault. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/wfs/inventory-reconciliation-exceptions and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=wfs_inventory_reconciliation. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/wfs_inventory_reconciliation. Required: report_label, period_start_date, period_end_date, rows.

wfs_peak_storage_surcharge_verifier(rows, as_of_date, report_label, amount_tolerance, reporting_currency, seller_confirms_peak_terms_and_rates_are_current, seller_confirms_rows_are_complete_current_peak_surcharge_lines)

Recompute each seller-confirmed WFS peak-storage surcharge as supplied cubic feet times your supplied seasonal rate, preserve the base monthly storage fee separately, and rank signed differences without embedding Walmart's peak window or rate. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/wfs/peak-storage-surcharge-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=wfs_peak_storage_surcharge_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/wfs_peak_storage_surcharge_verifier. Required: report_label, as_of_date, reporting_currency, seller_confirms_rows_are_complete_current_peak_surcharge_lines, seller_confirms_peak_terms_and_rates_are_current, rows.

wfs_removal_fee_verifier(rate_card, charge_rows, marketplace, report_label, report_end_date, amount_tolerance, report_start_date, reporting_currency, high_charge_threshold, confirm_rates_are_seller_supplied)

Join seller-redacted return-to-seller and disposal processing lines to your supplied per-unit action rates; recompute units × rate, regroup dated lines under each removal-order alias, and rank arithmetic differences—without looking up a rate or claiming Walmart billed incorrectly. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/wfs/removal-disposal-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=wfs_removal_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/wfs_removal_fee_verifier. Required: report_label, report_start_date, report_end_date, confirm_rates_are_seller_supplied, rate_card, charge_rows.

wfs_return_processing_fee_verifier(rate_card, charge_rows, marketplace, report_label, report_end_date, amount_tolerance, report_start_date, reporting_currency, high_charge_threshold, confirm_current_source_and_rates_are_seller_supplied)

Join seller-redacted WFS return-processing charge lines to your supplied per-unit rates by exact size-tier and weight-band labels; recompute units × rate and rank arithmetic differences—without looking up a rate, inferring measurements or return responsibility, or claiming Walmart billed incorrectly. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/wfs/return-processing-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=wfs_return_processing_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/wfs_return_processing_fee_verifier. Required: report_label, report_start_date, report_end_date, confirm_current_source_and_rates_are_seller_supplied, rate_card, charge_rows.

wfs_settlement_mix_drift_comparator(prior_rows, marketplace, current_rows, report_label, prior_end_date, current_end_date, prior_start_date, current_start_date, reporting_currency, amount_review_minimum, complete_period_exports, count_review_threshold_percent, amount_review_threshold_percent)

Compare two complete, equal seller-supplied WFS/MCS settlement periods by program, normalized settlement category, transaction type, reason, amount-sign direction, and currency; rank new, absent, and threshold-level count or value movement without declaring any fee or credit invalid. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/wfs/settlement-fee-credit-mix-drift and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=wfs_settlement_mix_drift_comparator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/wfs_settlement_mix_drift_comparator. Required: report_label, complete_period_exports, prior_start_date, prior_end_date, current_start_date, current_end_date, prior_rows, current_rows.

wfs_storage_fee_verifier(rows, amount_tolerance, volume_tolerance, high_cost_threshold)

Recompute each seller-supplied WFS storage-fee row from your own unit dimensions or cubic feet, on-hand units, per-cubic-foot rate, and optional aged-inventory surcharge, then rank arithmetic mismatches and the largest charges against what Walmart billed — with per-month summaries and no rate table embedded. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/wfs/monthly-storage-fee-verification and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=wfs_storage_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/wfs_storage_fee_verifier. Required: rows.

Last successful function declaration observed on 2026-08-13. Source: https://friday-seller-tools-production.up.railway.app/mcp. We list what the server declared; we do not call any of these functions.

Endpoint status observed on 2026-08-13. Source: https://friday-seller-tools-production.up.railway.app/mcp.

Signals

These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.

Where to get it

• Repository — https://github.com/DoughyJoeyD/friday-seller-tools
• Website — https://friday-seller-tools-production.up.railway.app
• Remote endpoint (streamable-http) — https://friday-seller-tools-production.up.railway.app/mcp