MCP Server Directory

Bitview io.github.bitcoinresearchkit/bitview

Read-only Bitcoin blockchain, mempool, mining, market, and on-chain analytics; no API key.

INMETRO: Cronotacógrafo (Detalhes) io.github.mcp-dir/inmetro_cronotacografo_cert-mcp

INMETRO: Cronotacógrafo (Detalhes), official-source lookup. Platform-hosted, pay per query with prep

MCP server for the Google People API: search, create, update and delete contacts and groups.

POSTFACT — Resolve Ambiguous Side Effects Before Retry io.github.GSterlingPress/postfact

Resolve whether an uncertain side-effecting action completed before software retries it.

Postgres URL Shape io.github.sadri-dridi/postgres-url-shape

Check a Postgres URL shape. Credentials discarded.

AgentFabric — Human-in-the-Loop Review & Approval io.github.enzoduit/agentfabric

Human-in-the-loop review and approval for AI agents. Audit trail, approval policies, native MCP.

Redis URL Shape io.github.sadri-dridi/redis-url-shape

Check a Redis URL shape. Credentials discarded.

Receita Federal: PGFN (CND Federal) - Lista Segunda Via io.github.mcp-dir/receita_federal_pgfn_2via_list-mcp

Receita Federal: PGFN (CND Federal) - Lista 2nd Copy, official-source lookup. Platform-hosted, pay p

x402 Checker (AI Nock) io.github.nock-for-mak/x402-checker

Free check/board/name; paid bid/report 0.05, 1c fx/wx/lookups, news 0.001.

Execute bing-ai-results-mcp io.github.Evozim/bing-ai-results-mcp

Premium agentic endpoint for bing-ai-results-mcp.

nobrainner io.github.aaadjrbr/nobrainner

NoBrainner Spaced Repetition Flashcards, Study Stats & Multi-Language AI Deck Generation

Deterministic PC no-boot/no-POST diagnostics: real beep-code tables, no LLM guessing.

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

ISO country PL io.github.sadri-dridi/cc-pl

Public ISO 3166-1 record for PL.

Local recursive self-improvement OS MCP with fail-closed governance and gated mutation tools.

SEO and AI-visibility checks agents buy per call — USDC on Solana, no API key.

SchemaLock — paid extraction: JSON from docs via your schema, x402/USDC.

Kanban boards, sprints, tickets and a team wiki, with versioned writes for concurrent agents.

Polícia Federal: Situação e Regularidade de Empresa de Segurança Privada io.github.mcp-dir/pf_regularidade_empresa-mcp

Polícia Federal: Situação e Regularidade de Empresa de Segurança Privada, official-source lookup. Pl

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

Witness io.github.tfitzgerwitness/witness

Production proofs for breaking JSON Schema/MCP changes; UNKNOWN/NO_WITNESS_FOUND not compatible.

Razi Tools io.github.razikallayi/razi-tools

PDF, image, video, OCR, screenshot, SQL, QR and text tools for agents. No API key, no signup.

Conselho Regional de Odontologia RJ: Cadastro io.github.mcp-dir/cro_rj_cadastro-mcp

Conselho Regional de Odontologia RJ: Cadastro, official-source lookup. Platform-hosted, pay per quer

DETRAN AM: Veículo io.github.mcp-dir/detran_am_veiculo-mcp

DETRAN AM: Vehicle, official-source lookup. Platform-hosted, pay per query with prepaid credit.