# cnpj.ai

> cnpj.ai — ai-cnpj-mcp. Use this tool when you need to retrieve detailed information on Brazilian companies, including ownership and corporate networks, by searching with a CNPJ (Brazilian Company Identifier). It solves problems related to company research, due diligence, and business intelligence, providing outputs such as company data, ownership structures, and connection maps. Ideal for use cases involving market analysis, competitor research, or regulatory compliance in Brazil.

Canonical page: https://skillsregistry.net/skills/ai-cnpj-mcp  
JSON: https://api.skillsregistry.net/v1/skills/ai-cnpj-mcp

## Description

Empresas, sócios e conexões por CNPJ. Brazilian company data, ownership and corporate networks.

## Trust

- **Trust score (0–1):** 0.70
- **Verification tier:** unverified

## Facts

- **Version:** 0.1.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Updated:** 2026-09-29

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/ai.cnpj%2Fmcp)

## Use it

MCP endpoint published by the skill: `https://mcp.cnpj.ai/mcp`

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "ai-cnpj-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/ai-cnpj-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/ai-cnpj-mcp/pull`

---
SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt