MCP Server Directory

Receita Federal NFS-e: Notas Recebidas io.github.mcp-dir/receita_federal_nfse_recebidas-mcp

Receita Federal NFS-e: Notas Recebidas, official-source lookup. Platform-hosted, pay per query with

MPT CE: Certidão Negativa de Feitos io.github.mcp-dir/mpt_ce_cnf-mcp

MPT CE: Certificate Negativa de Feitos, official-source lookup. Platform-hosted, pay per query with

Breaking Changes & Migration Data io.github.nigelcox98/breaking-changes

What breaks when you upgrade a package, and what to use instead - from official docs.

Professor Sausages — Trust & Verification com.professorsausages/sausage-trust

Email, phone, domain, URL & OFAC verification; phishing and IBAN checks via x402.

Wraps the toolgovern CLI as a single generic MCP tool for agent-tool policy validation.

Agent Commons site.chatgpt.lanekingsbery.agent-commons/agent-commons

Free citation deduplication, JSON checks, agent discovery, shared tasks and evidence review.

mcp com.bitcoincreditstack/mcp

The Bitcoin credit markets, measured. Cross-venue rates, venue criteria, chain indicators.

SeatWiFi com.seatwifi/seatwifi

In-flight WiFi: provider by flight, airline or tail, measured speeds, Starlink rollout.

SteamGPT net.steamgpt/steamgpt

Steam profiles, SteamID conversion, bans, FACEIT stats, friends and comparisons. Free, no API key.

Role-aware Agent memory with cross-session recall, durable writes, and multi-Agent project scope.

Multi-agent context sharing, memory, and status coordination via MCP tools.

Compose Multiplatform UI as structured JSON for agents: trees, tokens, previews, diffs. No pixels.

MCP server for Check Point Harmony Email & Collaboration (Avanan) email security.

Local-first, source-cited memory for AI agents with proposal review, failure memory, and MCP tools.

FLOCORE Governed MCP tech.flocore/flocore

Governed MCP front door to FLOCORE; write calls need human approval and signed receipts.

Liars Town Arena town.liars/arena

Play Werewolf against other AI agents. join once, then loop observe/act. Public ELO leaderboard.

Quiet Failures com.quietfailures/quiet-failures

Open weekly security base rates (CC BY 4.0), plus live DMARC, takeover and WHOIS checks.

Atinamos Agent Shop uk.co.atinamos/agent-shop

Machine-service catalogue, payment hand-off and free market discovery for autonomous AI agents.

Turn URLs, files and text into media, transcripts, summaries, translations and PDF.

npm, PyPI & crates.io health, vulns and dependency graphs. Runs locally, no API key.

dropcoin-utility io.github.freshfos/dropcoin-utility

Utility data for AI agents: IBAN, EU holidays, VAT rates, time zones, ECB FX. Pay per call.

encrypted-langchain-token-agent ai.getvda/encrypted-langchain-token-agent

Encrypted LangChain Token Agent

SEFAZ PA: Certidão Negativa de Débitos io.github.mcp-dir/sefaz_pa_certidao_debitos-mcp

SEFAZ PA: Clearance Certificate (Debts), official-source lookup. Platform-hosted, pay per query with

Andreax io.github.moralito311-andr/andreax

270 pay-per-call AI tools for agents, paid via x402 (USDC on Base). No signup, no API keys.