Fichário — CNPJ Brasil MCP

A community MCP server that provides free access to public Brazilian company data from the Receita Federal. It enables AI agents to look up active companies by CNPJ or name using tools like buscar_empresa and consultar_cnpj, leveraging a database of 28.4 million records without requiring login.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Community listingStreamable HTTPNo sign-inEndpoint checked 2026-11-01Published by Genesis Innovation

MCP endpoint (Streamable HTTP)

https://cnpj.genesisinnovation.io/mcp

Vendor documentation

What its tools do

5 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Not annotated (5)

buscar_empresa
consultar_cnpj
listar_concorrentes
dados_bolsa
publicacoes_judiciais

5 of 5 have a description · 0 of 5 declare behavior hints · 2 of 5 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

Passed Endpoint answered the live check · Nov 1, 2026, 6:41 PM UTC
Availability 1 of 1 checks passed in 30 days

What you can do with it

Lookup company details by CNPJ number
Search for companies by trade name or social reason
Verify active Brazilian company status

Source and maintenance

Community listingRegistry 1.0.0

mcp-registry: io.github.thiagopatzdorf/fichario@1.0.0 Project website

Protocol and capabilities

Server: fichario 1.0.0
MCP protocol negotiated in check: 2025-03-26
Tools: 5 advertised
Resources: Not advertised
Resource templates: Not advertised
Prompts: Not advertised

Server-advertised capabilities

{
  "tools": {}
}

Tools

5 advertised

buscar_empresa

Advertised by the server during the last successful anonymous check.

Busca empresas brasileiras ativas pelo nome (razão social ou fantasia) ou CNPJ. Devolve até 20 resultados.

buscar_empresa input schema

{
  "type": "object",
  "required": [
    "consulta"
  ],
  "properties": {
    "uf": {
      "type": "string",
      "description": "Sigla da UF (opcional)"
    },
    "cidade": {
      "type": "string",
      "description": "Município (opcional, exige uf para ser rápido)"
    },
    "consulta": {
      "type": "string",
      "description": "Começo do nome (fantasia ou razão social) ou CNPJ"
    }
  }
}

consultar_cnpj

Advertised by the server during the last successful anonymous check.

Ficha completa de uma empresa pelo CNPJ (14 dígitos): razão social, atividade, endereço, porte, telefone, site e Instagram.

consultar_cnpj input schema

{
  "type": "object",
  "required": [
    "cnpj"
  ],
  "properties": {
    "cnpj": {
      "type": "string",
      "description": "CNPJ com ou sem pontuação"
    },
    "verificar": {
      "type": "boolean",
      "description": "Conferir a situação cadastral ao vivo na Receita (padrão: true). Também acha CNPJs baixados/inaptos fora da base."
    }
  }
}

listar_concorrentes

Advertised by the server during the last successful anonymous check.

Concorrentes de uma empresa: outras empresas ativas com a mesma atividade principal (CNAE) na mesma cidade (ou no estado), mesmo porte primeiro, com contagens.

listar_concorrentes input schema

{
  "type": "object",
  "required": [
    "cnpj"
  ],
  "properties": {
    "cnpj": {
      "type": "string"
    },
    "limite": {
      "type": "integer",
      "description": "até 50 (padrão 20)"
    }
  }
}

dados_bolsa

Advertised by the server during the last successful anonymous check.

Se a empresa é companhia aberta na B3: tickers, cotação, valor de mercado, P/L e P/VP (Genesis Bolsa, CVM + B3).

dados_bolsa input schema

{
  "type": "object",
  "required": [
    "cnpj"
  ],
  "properties": {
    "cnpj": {
      "type": "string"
    }
  }
}

publicacoes_judiciais

Advertised by the server during the last successful anonymous check.

Publicações recentes no Diário de Justiça Eletrônico Nacional (CNJ) com a razão social da empresa como parte (casamento por nome exato; pode haver homônimos).

publicacoes_judiciais input schema

{
  "type": "object",
  "required": [
    "cnpj"
  ],
  "properties": {
    "cnpj": {
      "type": "string"
    }
  }
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (3 of 3 answered).

2026-11-02: 3 of 3 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 515 ms
95th percentile latency: 515 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 1, 2026, 6:41 PM UTC · probe · passed · 515 ms · metadata changed · 5 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http ficha-rio-cnpj-brasil-mcp https://cnpj.genesisinnovation.io/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add ficha-rio-cnpj-brasil-mcp --url https://cnpj.genesisinnovation.io/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable ficha-rio-cnpj-brasil-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "ficha-rio-cnpj-brasil-mcp": {
      "url": "https://cnpj.genesisinnovation.io/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "ficha-rio-cnpj-brasil-mcp": {
      "type": "streamableHttp",
      "url": "https://cnpj.genesisinnovation.io/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start ficha-rio-cnpj-brasil-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "ficha-rio-cnpj-brasil-mcp": {
      "type": "http",
      "url": "https://cnpj.genesisinnovation.io/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http ficha-rio-cnpj-brasil-mcp https://cnpj.genesisinnovation.io/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "ficha-rio-cnpj-brasil-mcp": {
      "url": "https://cnpj.genesisinnovation.io/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "ficha-rio-cnpj-brasil-mcp": {
      "serverUrl": "https://cnpj.genesisinnovation.io/mcp"
    }
  }
}

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