ZBS Index What actually exists in applied AI, with the source next to it

MCP servers

Each entry shows what its maintainer published and when the project was last touched. Where a repository has been deleted or archived, that is stated on the entry instead of being quietly left out.

Listed, not yet verified by us (46)

Published to the registry, but we have not yet checked its repository. Treat the entry as the maintainer’s claim only.

  • dev.agentopskit.www/constitution-lint — v1.2.0
    Static linter for CLAUDE.md-style agent constitution files: 10 operational-guardrail checks.
  • Agent Papers — v1.0.0
    Registry of companies selling AI agents identity, phone, email, addresses, money, legal, insurance
  • AgentPays — v1.0.0
    Payment infrastructure for AI agents: spending rules, approval flows, single-use virtual cards.
  • AI Cortex Storage — v1.0.0
    Persistent cloud memory for AI agents. Store and search key-value memories across sessions.
  • dev.anotherai/anotherai — v0.1.0
    MCP server for building and testing AI agents with multi-model experimentation and insights.
  • AppContext — v0.1.0
    Live iOS Simulator and browser screenshots, logs, and a personal MCP hub for AI coding agents.
  • dev.ascendkit/ascendkit — v0.3.22
    Auth, email, journeys, surveys, webhooks, and analytics for SaaS in one project, one API key.
  • dev.asiaref/reference-data — v1.5.0
    Asian govt data, cited to source: rates, VAT, tax, wages, holidays, FX. 28 countries; Japan free.
  • dev.ausref/reference-data — v1.5.0
    Oceania govt data, cited: rates, VAT, tax, wages, holidays, FX. 8 countries; Australia free.
  • PressureDesk — v0.1.0
    Read-only BUY / WAIT / AVOID spend gate for paid APIs, MCP endpoints, and x402 routes.
  • Website Change Monitor — v0.1.36
    Monitor public pages and JSON endpoints after agents disconnect, with polling and webhooks.
  • BrazilMCP — v1.0.0
    Brazilian company data (CNPJ): registry lookup, sanctions screening and KYB dossier, paid via x402
  • BuddyLists — v0.1.1
    Agent-only social network and labor market: presence, buddy lists, jobs with escrowed settlement.
  • dev.cite42/mcp — v0.1.16
    AI search visibility, brand rankings, AI citations, SEO keywords, and trends from Cite42.
  • dev.coinop/longwatch — v1.0.0
    Watch web pages, RSS, crypto prices and SEC filings; poll one endpoint for alerts. USDC per call.
  • dev.continue/docs — v1.0.0
    An MCP server for docs.continue.dev
  • dev.crelvo/german-tax-data — v1.1.0
    German municipal tax data (Hundesteuer, Zweitwohnungsteuer, Pfaendung), cited to the source
  • dev.cz-agents/ddplus — v0.1.0
    Czech KYC due-diligence — paid tier extension (nominee, phoenix, risk timeline, watchlist).
  • dev.cz-agents/realestate-pro — v0.1.0
    Czech distress real estate — paid tier (full search, owner data, RUIAN).
  • AI Brand Watch by Desvela — v0.1.14
    Track your brand's share of voice in ChatGPT, Claude, Perplexity and Gemini. Pay per check.
  • Desvela ARD Registry — free preflight(domain) — v0.1.0
    What a domain publishes for AI agents: ai-catalog.json, llms.txt, agents.md, robots.txt rules. Free.
  • dev.domainee/domainee — v1.0.0
    Custom domains API for SaaS: connect, verify, and manage customer domains, SSL, and DNS
  • EchoRelay — v0.11.0
    Manage EchoRelay relay projects from any MCP client: lines, endpoints, keys, billing, logs, DLQ.
  • dev.eqbuilder/marz-greta-lock-network — v1.0.3
    Human-likeness scoring of AI text vs 28 profiles; sub-ms scoring, ~150ms API; free + x402 paid tier
  • dev.euroref/reference-data — v1.5.0
    European govt data, cited: rates, VAT, tax, wages, holidays, FX. 35 countries; Germany free.
  • exchangerate.dev — v1.0.4
    Free, source-labeled FX rates: 465 pairs across 31 currencies, majors update ~60s intraday.
  • dev.fastdrop/fastdrop — v1.0.0
    Launch board for MCP products: discover probed listings, search by real tools, submit as a maker.
  • dev.fly.obol-x402/obol — v1.29.0
    Pre-trade safety verdicts for agents: token rug/honeypot, calldata guard, wallet risk — signed x402.
  • dev.fly.solidus-x402/solidus — v1.0.0
    Solana pre-trade safety for agents: rug check, honeypot sell-sim, drainer scan, tx preflight.
  • dev.fly.veles-finance-gateway/veles-finance-mcp — v1.0.1
    AI financial agent: due diligence, SEC 10-K, Kelly Criterion. Pay-per-call via x402 USDC.
  • Frostbyte — v1.3.0
    Roadmap, tasks, releases and user feedback your coding agent reads and writes over MCP.
  • goldprice.dev — v1.0.3
    Gold/silver/copper spot & futures, per-country dealer prices, options-implied probability surface.
  • MCP Kill-Chain Research — Stage 1 (Identity ≠ Behavior) — v1.1.0
    Security research: MCP registries verify identity, not tool behavior. See gtfo.dev.
  • dev.gtmtools/gtm-tools — v0.2.0
    A read-only verified record of agent-operable GTM tools: search, fetch, compare, track changes.
  • dev.hatchloop/data-enrichment — v1.0.0
    Free B2B data enrichment: company lookup, email validation, email patterns, domain info. Zero auth.
  • dev.hatchloop/pdf-generator — v1.0.0
    Generate PDFs from Markdown or HTML. Zero-auth, agent-native. Returns base64-encoded PDF.
  • dev.hatchloop/url-shortener — v1.0.0
    Zero-auth URL shortener for AI agents. Deterministic: same URL always returns the same code.
  • iknow — v1.0.0
    Knowledge base MCP for AI agents on iknow.dev. Search, read, and maintain via OAuth.
  • dev.infersports/infersports — v1.0.0
    Sharp Asian odds + opening-line (初盘) movement for agents: 6 Asian books + Pinnacle. Read-only.
  • ITHZ MCP — v0.1.0a1
    Local deterministic project memory for AI agents with context packs, gates and checkpoints.
  • dev.journalize/journalize — v1.0.0
    Agent-native double-entry accounting ledger with x402 micropayments
  • dev.kultur/mcp-server — v1.0.1
    Cultural intelligence API — Hofstede 6-D, etiquette, risk analysis for 195 countries
  • dev.latamref/reference-data — v1.5.0
    LatAm govt data, cited to source: rates, VAT, tax, wages, holidays, FX. 22 countries; Brazil free.
  • dev.lingo/main — v1.0.0
    Lingo.dev MCP Server - World-class i18n implementation with ICU MessageFormat.
  • dev.looptool/looptool — v1.0.0
    An MCP server that automatically collects feedback on your MCP server.
  • Mainline — v1.0.0
    Gives your AI agent your story map and given/when/then acceptance criteria. Read-only.

Repository gone or archived (13)

The registry still lists these, but the linked repository returns 404 or the owner archived it. Shown so you do not spend time discovering that yourself.

  • AgentShare — Solana DeFi Intelligence (Meteora DLMM) MCP — repository gone, v1.0.1
    Solana DeFi MCP: Meteora DLMM brief+detail; Solana DEX scout. Commerce optional.
  • dev.aicommander/mcp — repository gone, v1.0.17
    Remote command execution on your machines — an SSH/Ansible alternative, by AIC-… code or alias.
  • ArchGraph — repository gone, v1.0.0
    Code intelligence platform for AI agents. 20 tools for architecture, security & impact analysis.
  • Arlet — repository gone, v0.1.0
    Create, deploy, and operate MCP servers directly from your GitHub repositories.
  • BOFiP — Doctrine fiscale française — repository gone, v1.0.0
    Doctrine fiscale française (BOFiP) : recherche, veille et graphe doctrinal. Etalab 2.0.
  • Busymate DevTools — repository gone, v1.0.481
    Capture, inspect & debug HTTPS traffic across iOS, Android, browsers & backends — 304 MCP tools.
  • EU261 Flight Compensation — repository gone, v1.0.0
    EU261 flight delay compensation: check eligibility, compute EV, track fares. 6 tools, 35+ airports.
  • DepFeed — repository gone, v0.6.3
    Change intelligence for coding agents: sourced breaking changes for npm, PyPI, and Rust packages.
  • dev.dungbeetle/mcp — repository gone, v0.1.0
    Visual regression & snapshot testing for AI agents — list runs, read semantic diffs, review.
  • dev.fentz.envcp/envcp — repository gone, v1.1.0
    Encrypted environment variable vault with AI access policies, keeping secrets safe from AI agents.
  • dev.invoicehub/invoicehub — repository gone, v1.3.0
    Validate, generate & convert EU e-invoices (UBL, CII, XRechnung, Factur-X) — EN 16931 pre-validated.
  • Lattis — repository gone, v0.4.0
    Search indexed websites, read raw page markdown, and score AI visibility for any site.
  • MantleKit Launch Planner — repository gone, v0.1.3
    Generate MantleKit setup plans and launch-ready SaaS blueprints from a product idea.

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How this page is ordered

Entries are grouped by whether anyone is still working on them, using the date of the most recent push to the repository. They are not ordered by stars, because a star is a bookmark somebody left once and never took back.

Where we have not checked an entry yet, it says so rather than being mixed in with the verified ones.