MCP Server Directory

Action firewall for AI agents: blocks the wrong action before it runs, every verdict Ed25519-signed.

Generate OpenAPI 3.1 specs, endpoint docs, TypeScript SDKs, and test suites from code

Japanese open-data MCP server: corporate-number validation, zengin bank codes, national holidays

Prefeitura RS Farroupilha: NFS-e (Nota Fiscal Eletrônica de Serviços) io.github.mcp-dir/pref_rs_farroupilha_nfs-mcp

Prefeitura RS Farroupilha: NFS-e (Nota Fiscal Eletrônica de Serviços), official-source lookup. Platf

Connect Claude to any OpenAI-compatible LLM endpoint and offload routine work to a local model.

Technical SEO in Claude: GSC + crawl + DataForSEO - audit, market sizing, content recon.

Prefeitura PE Petrolina: Multas io.github.mcp-dir/pref_pe_petrolina_multas-mcp

Prefeitura PE Petrolina: Multas, official-source lookup. Platform-hosted, pay per query with prepaid

Prefeitura PE Recife: CPOM io.github.mcp-dir/pref_pe_recife_cpom-mcp

Prefeitura PE Recife: CPOM, official-source lookup. Platform-hosted, pay per query with prepaid cred

Trust score for AI-generated code: scan repos, guard agent file writes, get a 0-100 score.

Read and write checked code rationale stored outside source comments.

An artifact manager for system specifications.

Prefeitura PE Recife: NFS-e (Nota Fiscal Eletrônica de Serviços) io.github.mcp-dir/pref_pe_recife_nfs-mcp

Prefeitura PE Recife: NFS-e (Nota Fiscal Eletrônica de Serviços), official-source lookup. Platform-h

x402-payment-safety io.github.AgentTanuki/x402-payment-safety

Authorize x402 payments before signing with request-bound, signed safety decisions.

Council of AI GSPC io.github.CSOAI-ORG/gspc

GSPC board + Ed25519 card verify. 12 tools (7 free, 5 x402). Measure, never certify.

Test whether AI agents retain critical instructions as conversations grow.

taufunctions io.github.jyswee/taufunctions

Serverless functions for coding agents. Deploy, invoke, monitor. 13 tools, stdio or remote SSE.

HYPD AI - Paid Ads & Analytics io.github.HYPD-AI/ads

Google Ads, Meta (Facebook) Ads, GA4 and Merchant Center analysis in plain language. Read-only.

Complete US ETF holdings from SEC N-PORT filings + ticker/CUSIP/FIGI crosswalk. Primary source.

geojp io.github.55tarkun/geojp

MCP server for Japan geodata: cadastral lot numbers (chiban) and reverse geocoding, for AI agents.

advertising-protocols io.github.Samrajtheailyceum/advertising-protocols

Query 70+ ad tech protocols — OpenRTB, VAST, AdCP, AAMP, TCF, GPP — with citations.

Search public Ashby job boards: resolve a company, read its openings and the pay it publishes.

mcp io.github.quantustik/mcp

Live S&P 500 quantum-model signals, forecasts and trade plans. Educational, not financial advice.

Registradores (ARISP) Matrícula: Download de Recibo io.github.mcp-dir/registradores_matric_recibo-mcp

Registradores (ARISP) Matrícula: Download de Recibo, official-source lookup. Platform-hosted, pay pe

Registradores (ARISP) Matrícula: Novo Pedido de Visualização de Matrícula io.github.mcp-dir/registradores_matric_pedido-mcp

Registradores (ARISP) Matrícula: Novo Pedido de Visualização de Matrícula, official-source lookup. P