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apipj · API de CNPJ

by apipj.com.br · remote · no sign-in to list tools · v0.2.0 · published by br.com.apipj

CNPJ API: Brazilian company records (Receita Federal open data). Google sign-in or API key

Changes · 2
CompareRegistry entry

3 tools: 2 change things and 1 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http cnpj https://apipj.com.br/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

3 tools

Changes things 2Claude Code: ask
  • consultar_cnpjDados cadastrais públicos de um CNPJ na base da Receita Federal (lote mensal): razão social, nome fantasia, situação cadastral, endereço, telefones, e-mail, atividades CNAE, nature…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Dados cadastrais públicos de um CNPJ na base da Receita Federal (lote mensal): razão social, nome fantasia, situação cadastral, endereço, telefones, e-mail, atividades CNAE, natureza jurídica, porte, capital social, Simples/MEI e sócios (CPF mascarado). Exige uma conta apipj: o cliente pede para conectar e entrar com o Google (OAuth) ou envia uma chave de API; cada consulta conta no limite por minuto e na cota mensal do plano da conta.

    Annotations the server declares

    • title: Consultar CNPJ
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • validar_cnpjConfere formato e dígitos verificadores de um CNPJ (numérico ou alfanumérico) sem consultar a base.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Confere formato e dígitos verificadores de um CNPJ (numérico ou alfanumérico) sem consultar a base. Devolve cnpj, valido, formatado, alfanumerico e erro. Sem chave e sem consumo de cota.

    Annotations the server declares

    • title: Validar CNPJ
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
Only reads 1Claude Code: allow
  • status_baseStatus do serviço e da base de CNPJ: mês do lote da Receita Federal carregado, data de geração e quantidade de CNPJs.No findings

    Why it is in this group

    • The name "status_base" says "status": a word for reading.
    Description, as the server wrote it
    Status do serviço e da base de CNPJ: mês do lote da Receita Federal carregado, data de geração e quantidade de CNPJs. Sem chave e sem consumo de cota.

    Annotations the server declares

    • title: Status da base
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 0.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http cnpj https://apipj.com.br/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__cnpj__status_base"
    ],
    "ask": [
      "mcp__cnpj__consultar_cnpj",
      "mcp__cnpj__validar_cnpj"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as cnpj. Review it before you use it.