mcp server
tech-risk
x402 MCP for agents: crypto prices, funding, DeFi yields, Polymarket, Base RPC + MCP security.
Description as published by the maintainer. Source
- version 1.2.0
- active
- security
active — Registry entry last updated 2026-07-17. Dashed tags are derived by ZBS Index from the published description, not stated by the maintainer.
What this server can do
22 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.
chain_balance(address)- Native ETH balance of a Base mainnet address, incl. balance_usd (ETH price cross-call — no price oracle on ETH-only competitors), via multi-provider JSON-RPC. Cost: $0.005 USDC per call via x402. Required: address.
chain_block_number- Current Base mainnet block number via multi-provider JSON-RPC (automatic failover across 4 providers, never fails on one provider's rate limit). Cost: $0.005 USDC per call via x402.
chain_block_number_preview- FREE live sample of the current Base mainnet block number — identical data to the paid chain_block_number tool. No payment required.
chain_gas_price- Current Base mainnet gas price (wei/gwei), EIP-1559 base_fee_gwei/priority_fee_gwei, and gas_price_usd (ETH price cross-call — no price oracle on ETH-only competitors) via multi-provider JSON-RPC. Cost: $0.005 USDC per call via x402.
chain_gas_price_preview- FREE live sample of the current Base mainnet gas price — identical data to the paid chain_gas_price tool. No payment required.
chain_token_balance(token, address)- ERC-20 token balance of a Base mainnet address via multi-provider JSON-RPC, incl. symbol/decimals/balance_formatted (per-token-contract cached in-isolate). Cost: $0.005 USDC per call via x402. Required: address, token.
chain_token_security(token)- Token security / honeypot detector for a Base mainnet ERC-20: EIP-1967/1822 proxy + upgradeability detection, bytecode dispatcher scan for mint/pause/blacklist/fee-setter/ownership selectors, owner() renouncement check, and a live eth_call state-override simulation testing whether a synthetic wallet can actually transfer() the token. Returns risk_score (0-100) + verdict (clear/review/block) + human-readable flags. Real compute an agent can't trivially self-serve. Cost: $0.005 USDC per call via x402. Required: token.
chain_token_security_preview- FREE full real analysis of a fixed well-known token (Base WETH) via the token security / honeypot detector — same depth as the paid chain_token_security tool, so you can see the real product before paying. To analyze an arbitrary token, use the paid chain_token_security tool. No payment required.
chain_tx(hash)- Transaction details by hash on Base mainnet via multi-provider JSON-RPC. Cost: $0.005 USDC per call via x402. Required: hash.
chain_wallet(address)- Wallet bundle: ETH balance + balance_usd (ETH price cross-call) + tx count + contract-code check (EIP-7702 delegated-EOA aware) for a Base mainnet address, in one call. Cost: $0.005 USDC per call via x402. Required: address.
crypto_funding(limit)- Live cross-venue perpetual-futures funding rates from Hyperliquid+OKX+dYdX (per-venue rate, arb spread in bps, cheapest-long/richest-short venue, premium/basis, annualized_hl, annualized_okx, LONGS_PAY/SHORTS_PAY/NEUTRAL signal, next_funding_ts, mark/oracle price, open interest, day volume), ranked by volume. Venues that are unreachable or don't list a given coin are omitted per-coin — Hyperliquid is always present. Cost: $0.005 USDC per call via x402.
crypto_funding_preview- FREE 1-item sample of live cross-venue funding rates. No payment required.
crypto_prices(coins)- Live spot token prices (price, change_24h, symbol, confidence, timestamp) for CoinGecko ids, sourced from DefiLlama. Cost: $0.005 USDC per call via x402.
crypto_prices_preview- FREE 1-item sample of live token prices. No payment required.
defi_yields(sort, chain, limit, stable, project)- Live DeFi lending/LP yield pools (project, chain, symbol, pool id, APY breakdown incl. 1d/7d/30d trend + apyBase7d/apyMean30d, IL risk incl. il7d, exposure, reward/underlying tokens, outlier flag, mu/sigma, DefiLlama stability forecast, TVL, stablecoin flag) from DefiLlama, ranked by TVL (or risk-adjusted APY = apy/sigma). Cost: $0.005 USDC per call via x402.
defi_yields_preview- FREE 1-item sample of live DeFi yield pools. No payment required.
enrich_domain(domain)- Firmographic + tech-stack enrichment: RDAP registrant/registrar, DNS records, full subdomain enumeration + certificate-transparency history, tech-stack fingerprint, verdict (clear/review/block, based on domain age) for a domain. Cost: $0.005 USDC per call via the shared MCP payment gate (the direct HTTP endpoint GET /enrich/domain is $0.01 — MCP tools/call is gated at a flat $0.005 per request). Required: domain.
enrich_tech_risk(domain, techstack)- Security enrichment: tech-stack fingerprint + CVE mapping + EPSS + CISA KEV + verdict (clear/review/block) for a domain. Cost: $0.005 USDC per call (x402 micropayment).
pm_markets(limit, query)- Live Polymarket prediction-market data — question, outcomes, outcome prices, bestBid/bestAsk/spread, volume24hr/volume1wk, oneDayPriceChange, clobTokenIds, conditionId, category tags, liquidity, end date — ranked by volume24hr. Cost: $0.005 USDC per call via x402.
pm_markets_preview- FREE top-1 sample of live Polymarket prediction markets, ranked by volume24hr. No payment required.
scan_mcp_preview(url)- FREE preview scan of a target MCP server for tool-poisoning / prompt-injection. Returns issue count, severity breakdown, risk score, and verdict (clear/review/block) — but NOT which tools or the evidence. Use this to check any MCP server (including your own) at no cost; if issues are found, call the paid scan_mcp_server for the itemized findings + remediation. No payment required. Required: url.
scan_mcp_server(url)- Security-audit a target MCP server for prompt-injection / tool-poisoning. Fetches the server's advertised tools and statically analyzes each for hidden instructions, data-exfiltration hints, dangerous capabilities, cross-tool shadowing, and invisible-unicode payloads (OWASP LLM01/LLM08). Returns findings + a 0-100 risk score + verdict (clear/review/block). Cost: $0.005 USDC per scan via x402 (GET /scan/mcp HTTP variant is $0.10). Required: url.
Last successful function declaration observed on . Source: https://x402-data-api.sigrunner.workers.dev/mcp. We list what the server declared; we do not call any of these functions.
Endpoint status observed on . Source: https://x402-data-api.sigrunner.workers.dev/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.
| Signal | Value | What it measures | Window | Observed | Source |
|---|---|---|---|---|---|
| Latest published version | 1.2.0 | Latest version string the maintainer published to the registry. | as of fetch | Model Context Protocol | |
| Registry record last updated | 2026-07-17 | When the registry record was last updated by its maintainer. | point in time | Model Context Protocol | |
| First listed in the MCP Registry | 2026-07-17 | Date this server was first published to the official MCP Registry. Not a usage or quality measure. | point in time | Model Context Protocol | |
| mcp tools declared | 22 tools | Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. | as of probe | x402-data-api.sigrunner.workers.dev | |
| mcp endpoint status | ok | The server listed 22 functions when asked. | as of probe | x402-data-api.sigrunner.workers.dev |
Where to get it
This record as data
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