About radar-cnpj
Radar CNPJ is a skill and remote MCP server for agents checking Brazilian companies. It combines Receita Federal records with partner, sanctions, tax-debt, government-contract, and other public database information, including source dates.
Key features
- 01Retrieve CNPJ records and company details
- 02Search by name, partner, location, or activity
- 03Check supplier and customer lists
- 04Assess business activity by location
- 05Monitor CNPJ changes
Use cases
- 01Review a company before onboarding
- 02Search for companies in a city or state
- 03Screen a list of suppliers
- 04Track changes to a CNPJ
MCP support
The remote MCP server exposes company lookup, search, business evaluation, and monitoring tools to MCP clients over Streamable HTTP.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://radar-cnpj.com/mcpclaude mcp add --transport http com-radar-cnpj-radar-cnpj https://radar-cnpj.com/mcp{"mcpServers":{"com-radar-cnpj-radar-cnpj":{"type":"http","url":"https://radar-cnpj.com/mcp"}}}Open in Cursor{"servers":{"com-radar-cnpj-radar-cnpj":{"type":"http","url":"https://radar-cnpj.com/mcp"}}}Open in VS Code{"mcpServers":{"com-radar-cnpj-radar-cnpj":{"type":"http","url":"https://radar-cnpj.com/mcp"}}}{"mcpServers":{"com-radar-cnpj-radar-cnpj":{"serverUrl":"https://radar-cnpj.com/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
16| Parameter | Type | Required | Description |
|---|---|---|---|
| uf | string | No | Two-letter Brazilian state code. Required with municipality. |
| cno | string | No | 12-digit CNO number; punctuation is accepted. |
| cnpj | string | No | Valid CNPJ. Includes records for the same company root and previous links. |
| tipo | string | No | Recorded construction type: Alvenaria, Madeira or Mista. |
| cursor | string | No | Cursor from the previous response. Keep the same filters. |
| limite | number | No | Records per page: 1 to 50; default 20. |
| areaMax | number | No | Maximum area in square meters. |
| areaMin | number | No | Minimum area in square meters. |
| situacao | string | No | Status code: 1 void, 2 active, 3 suspended, 14 stopped, 15 closed. |
| categoria | string | No | Recorded category, such as Obra Nova or Reforma. |
| municipio | string | No | Full municipality name. Use ref with tipo=municipio to find the name and state code. |
Details
From the project READMERadar CNPJ — skill and MCP server for AI agents
Radar CNPJ lets an AI agent check Brazilian companies. One lookup returns the Receita Federal CNPJ record, the partners, the sanctions, the federal tax debt, the government contracts and data from 40+ public databases, each with its source date. This repository packages the Radar CNPJ skill and the connection to its remote MCP server for Claude Code, Codex, Cursor and other agents.
Site: https://radar-cnpj.com · MCP server: https://radar-cnpj.com/mcp?checkout=site · Prices: https://radar-cnpj.com/pricing ·
API docs: https://radar-cnpj.com/developers
What your agent can do
- Look up a company by CNPJ: status, activities (CNAE), address, partners, sanctions (CEIS, CNEP, CEPIM, TCU and CNIA), federal tax debt and contracts with the government.
- Search companies by name, trade name, partner, phone, address or activity, in a state or a city.
- Check a list of suppliers or customers in one call.
- Evaluate a business idea: count the active, opened and closed companies of an activity in a place.
- Monitor a CNPJ and read its changes.
Try: "Check CNPJ 33.000.167/0001-01 for sanctions and federal tax debt." or "How many bakeries are active in Águas Claras, DF?"
Install
Claude Code, as a plugin with the skill and the MCP server:
/plugin marketplace add wrpbr/radar-cnpj
/plugin install radar-cnpj@radar-cnpj
Any agent that reads Agent Skills (Claude Code, Codex, Cursor, OpenCode and others):
npx skills add wrpbr/radar-cnpj
Only the MCP server (remote, Streamable HTTP, no key for the free tools):
claude mcp add --transport http radar-cnpj 'https://radar-cnpj.com/mcp?checkout=site' # Claude Code
codex mcp add radar-cnpj --url 'https://radar-cnpj.com/mcp?checkout=site' # Codex
{ "mcpServers": { "radar-cnpj": { "url": "https://radar-cnpj.com/mcp?checkout=site" } } }
The JSON above goes in .cursor/mcp.json for Cursor and in the MCP settings of most other clients. In Claude.ai and
Claude Desktop, open Settings → Connectors → Add custom connector and paste the server address.
Price
The CNPJ record, the search, the idea evaluation and the export are free and need no key. The full check gives a
free allowance each day; after it, the check uses a pack or a plan. The bulk check, the company dossier and the
monitoring of more than 10 companies are paid. You buy plans and prepaid credit on the site, and plans do not renew
automatically. The plugin never pays: with checkout=site, the MCP server has no purchase tool and no payment
argument. The agent shows the price and the link, and after your purchase it uses your credit token. The current
prices are at https://radar-cnpj.com/pricing.
What the plugin sends
The skill tells the agent to call the Radar CNPJ API at radar-cnpj.com. The MCP server also runs at radar-cnpj.com. Your queries (CNPJ numbers, search terms and places) go to radar-cnpj.com over HTTPS. A credit token goes only when you give one for a paid call. The plugin runs no local program and reads no local file.
Data and limits
The data comes from the public CNPJ dump of Receita Federal and from the public databases that each answer names, with their dates. Radar CNPJ is not an official certificate. Partner names, phones and e-mails are masked by default. Use personal data only for a legitimate purpose, as the Brazilian data protection law (LGPD) requires.
Em português
O Radar CNPJ deixa o agente de IA consultar empresas brasileiras. Ele traz a ficha da Receita, os sócios, as sanções, a dívida ativa da União, os contratos com o governo e mais de 40 bases públicas, com a data de cada fonte. Este repositório traz a skill e a conexão com o servidor MCP remoto. Instale com os comandos acima. A consulta de CNPJ, a busca e a avaliação de ideia são grátis e não pedem chave. A compra é sempre no site, e o plugin nunca paga sozinho. Os preços estão em https://radar-cnpj.com/pricing.
Files
| File | What it is |
|---|---|
skills/radar-cnpj/SKILL.md | The skill: which tool answers which question, and the rules for paid calls and personal data |
.mcp.json | The remote MCP server of the plugin |
.claude-plugin/plugin.json | The plugin manifest |
.claude-plugin/marketplace.json | Lets Claude Code add this repository as a plugin marketplace |
server.json | The manifest in the official MCP registry (com.radar-cnpj/radar-cnpj) |
glama.json | The maintainer for the Glama MCP directory |
License and contact
The files in this repository are under the MIT-0 license. The Radar CNPJ service and its data are not part of this license: their use follows the terms of use and the privacy policy. For questions or problems, open an issue here or write to [email protected].
Comments
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