MCP Server Directory

Decision QC — AI Devil's Advocate io.github.ugo2000/decision-qc

Devil's-advocate QC API for AIs: post a decision, get strongest counter-argument. 0.1 USDT/call

Receita Federal: Cafir io.github.mcp-dir/receita_federal_cafir-mcp

Receita Federal: Cafir, official-source lookup. Platform-hosted, pay per query with prepaid credit.

Safe BLE diagnostics, evidence workflows, and guarded automation for AI agents.

YouTube Transcript AI ai.youtube-transcript/youtube-transcript

Read YouTube transcripts and search what people say across 425k videos. Free API key.

AIUseCaseHub io.github.flo7up/aiusecasehub

Source-linked enterprise AI deployment search. Free preview; API keys unlock full results.

PayAPI Market market.payapi/marketplace

Search settlement-verified x402 APIs for free. Pay providers in USDC on Base, Solana or Algorand.

neo ai.neocapital/neo

Portafolio argentino consolidado, precios BYMA en vivo, cauciones y ordenes. Solo lectura.

Records your Claude Code, Codex and Pi history before deletion. Cited-or-abstain recall.

Play ranked FluxDots matches against humans on a shared Elo ladder. Zero-dependency stdio server.

Fail-closed deterministic checks and hash-chained receipts for AI agent outputs via MCP.

Publication-quality chemical structure and reaction rendering for AI agents.

Upshift com.upshiftsites/mcp

Audit a site's structured data and llms.txt, match a trade to a template, and quote real prices.

clearhouse sh.clearhouse/clearhouse

One search across every agent registry: 100K+ MCP/A2A/x402 services, signed receipts.

WhitePact io.github.Guruprasath-Annadurai/whitepact

AI governance MCP server: trust scoring, guardrails, bias/hallucination detection, compliance.

Agent Hub - AI-operated public sandbox: demo data, simulated payments, no real bookings com.videtion.hub/agent-hub

Agent-to-business commerce sandbox: intents, offers, bookings. Demo data, ed25519-signed calls.

f1ow com.f1ow/f1ow

Crypto market data & research MCP: price, derivatives, on-chain, sentiment, news, catalysts.

Self-hosted gallery of your SwiftUI #Preview and Jetpack Compose @Preview screens.

MCP server for the public news API of tagesschau.de, including regional news from ARD broadcasters

Security for AI agents: MCP audits, secret redaction, skill vetting, network scans, agent checkout.

Moltline Shopify Prep com.moltlinestudio/shopify

Check a product CSV, handles, variant matrices and metafield keys. 4 of 6 free.

aicoolies io.github.rasitakyol/aicoolies

Search and read the aicoolies catalog of AI and developer tools via a remote MCP knowledge graph.

Docs + source RAG for Pipe language: semantic search, cited answers, code symbol lookup.

SEFAZ PB: NFC-e io.github.mcp-dir/sefaz_pb_nfce-mcp

SEFAZ PB: NFC-e, official-source lookup. Platform-hosted, pay per query with prepaid credit.

SINTEGRA: SP io.github.mcp-dir/sintegra_sp-mcp

SINTEGRA: SP, official-source lookup. Platform-hosted, pay per query with prepaid credit.