MCP.Market

CNPJ MCP server

online · 100% uptime
by mcp-dir·io.github.mcp-dir/cnpj-mcp·v0.1.0·1 stars
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Free Brazilian CNPJ lookup (legal name, status, partners) + lawsuit discovery. Public data, no login

A92/100grade A
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Safety scan
A92/100

full report

Adoption
Growing

1 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

CNPJ tools (8)

write = sends, deletes, buys or posts
  • authenticateFree

    MCP.AI for IDE agents (Cursor, etc.): log in in the browser, copy the access token. Best: add it to this server's config as a header `Authorization: Bearer <token>` for a permanent, non-expiring connection. Or paste it here for a session-only login: call with { token: "<jwt>" } after the user pastes, or with no args to get the link.

  • cnpj_consultarFree

    Consulta cadastral de um CNPJ (grátis): razão social, nome fantasia, situação cadastral, CNAE principal, porte, município/UF e SÓCIOS (QSA). Útil pra identificar a empresa e seus sócios antes de buscar processos.

  • cnpj_processosFree

    DESCOBERTA por CNPJ: resolve o CNPJ em razão social (e sócios) e busca os processos por NOME no Diário (DJEN) — grátis, com número de processo completo. Opcionalmente inclui os processos dos sócios. Com os números, enriqueça com as tools datajud.

  • connectFree

    Returns connection status and URLs. When all providers are connected, returns authenticated:true and empty pending[]. When credentials are missing, returns connect_url for the toolkit and per-install URLs.

  • marketplaceFree

    The official mcp.ai marketplace — the in-platform catalog of every MCP/tool, AND the way to run them. Covers capability requests like "find an MCP that does X", "consulta um CPF", "is there a tool for Y". Core flow: action=search discovers MCPs by intent → describe returns one MCP's full profile (every tool with its id + params, pricing, auth) so you pick the right tool_id → invoke RUNS that tool. KEY: invoke works even when the MCP is NOT installed — it runs the tool pontualmente (one-off), without adding the MCP to the toolkit and without bloating the tool list. If the MCP needs a credential/login, invoke returns a connect link; if it is paid and the wallet is empty, invoke returns a checkout/top-up link (the user opens it, then you retry). Use install only to make an MCP PERMANENT in the active toolkit (its tools then show up natively in future sessions); prefer invoke for a single/occasional use. list_tools lists what is callable right now. subscribe/cancel handle per-MCP billing; report_bug sends feedback; request_mcp asks us to build a NEW MCP when nothing fits. Search/describe flag installed_in_toolkit vs installed_in_workspace. Writes (install/uninstall/subscribe/cancel and the one-off install behind invoke) require workspace owner/admin. It also carries the mcp.ai PROMPT LIBRARY, which is about ready-made prompt TEXT rather than MCPs: search_prompts finds one, get_prompt returns its full text with {{variables}} filled, and publish_prompt saves a prompt and returns a shareable mcp.ai/p/<slug> link that opens without login.

  • report_bugFree

    Report a bug, missing feature, or send feedback. Include the conversation array with recent messages for reproduction.

  • show_versionFree

    Show the current MCP platform and adapter versions.

  • toolkit_infoFree

    Returns the current toolkit state: installed MCPs, their connection status, the accounts connected to each one, and how many catalog tools each exposes.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 943ms20/20
  • Tool poisoning8 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancelast push 27 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10
Overall 92/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How CNPJ compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
92/100
higher than 95% of 48,255 servers
Tools
8
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
109 ms
faster than 82% of 30,031 servers
GitHub stars
1
more than 65% of 28,688 servers

What its tools let an agent do: 7 read · 1 change

Install CNPJ in Claude Code, Cursor or VS Code

claude mcp add --transport http cnpj-mcp https://api.mcp.ai/p_cnpj
Add to Cursor

What the publisher says

From the CNPJ repository's README, as published. We do not edit it. Read it on GitHub

CNPJ

Consulta de CNPJ e descoberta de processos para Claude, Cursor e agentes de IA

Consulta cadastral pública de CNPJ (razão social, nome fantasia, situação, CNAE, porte e sócios) e descoberta dos processos da empresa e dos sócios no Diário de Justiça (DJEN). Dados públicos da Receita Federal, grátis, sem login.

  • 🇧🇷 Dados públicos da Receita Federal
  • 🏢 Cadastro completo: razão social, nome fantasia, situação, CNAE, porte, município/UF e sócios (QSA)
  • ⚖️ Descobre processos da empresa (e dos sócios) por nome no Diário de Justiça (DJEN)
  • 🔒 Somente leitura
  • ⚡ Grátis, sem login, sem credencial, funciona assim que instala
  • 💬 Funciona com qualquer cliente MCP: Claude Desktop, Cursor, VS Code, Cline, Continue

English version · Documentação completa · Skill pra agentes

Instalar em 1 clique

Claude (Web e Desktop)

A Anthropic unificou a instalação de MCPs em claude.ai/customize/connectors. O mesmo link serve pra Claude Web e Claude Desktop (basta estar logado):

➕ Abrir no Claude e conectar

Manual (se o deeplink não abrir): claude.ai/customize/connectors → + → Adicionar conector personalizado → cole Nome CNPJ e URL https://api.mcp.ai/p_cnpj.

Cursor

➕ Instalar CNPJ no Cursor

VS Code (Copilot Chat)

➕ Instalar CNPJ no VS Code

ChatGPT, Manus, OpenClaw e mais 40+ clientes

Funciona em qualquer cliente MCP que suporte MCP over HTTP. A URL do servidor é sempre:

https://api.mcp.ai/p_cnpj

Detalhes por cliente: INSTALL.md.

Exemplos de uso

Consulte o CNPJ 33.000.167/0001-01 e liste os sócios
Quais processos da empresa do CNPJ 33.000.167/0001-01?
Inclua também os processos dos sócios
Qual a situação cadastral e o CNAE principal desse CNPJ?

2 ferramentas disponíveis

Detalhe de cada tool: docs/ferramentas.md

Como funciona

1. Instala o MCP no seu cliente (Claude / Cursor / VS Code)
2. Pergunta sobre qualquer CNPJ — sem login, sem cadastro
3. cnpj_consultar traz o cadastro + sócios (dados públicos da Receita Federal)
4. cnpj_processos resolve o CNPJ em nome e acha os processos no DJEN
5. Com os números de processo, enriqueça com as tools datajud

Combina bem com o Legal MCP e o DataJud MCP pra due diligence completa.

Preços

Grátis.

Privacidade & LGPD

  • Somente leitura, nenhuma ferramenta altera dados na origem.
  • Sub-processadores: o LLM host que você escolher (Claude, ChatGPT, Cursor, agente próprio). Lista completa em docs/privacidade-lgpd.md.
  • Os dados retornados pelas tools são enviados ao LLM host que você escolher, sub-processador fora do nosso controle. Recomendamos planos com opt-out de treinamento.

Perguntas frequentes

Precisa de login ou cadastro? Não. É grátis e funciona sem login, os dados de CNPJ são públicos da Receita Federal.

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

CNPJ: common questions

Is CNPJ MCP server safe?
Yes, by our scan: it is graded A (92/100). Read the CNPJ safety report
How do I install CNPJ?
It runs remotely at api.mcp.ai. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does CNPJ need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is CNPJ maintained?
The last commit was 65 days ago (2026-08-30). The latest release is v0.1.0.
Is CNPJ up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does CNPJ compare with other MCP servers?
safety score 92/100 (higher than 95% of 48,255 servers); tools 8 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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