CNPJ for ChatGPT

io.github.mcp-dir/cnpj-mcp

Free Brazilian CNPJ lookup (legal name, status, partners) + lawsuit discovery. Public data, no login

client:ChatGPT transport:streamable-http tools:8

Install CNPJ in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.mcp.ai/p_cnpj

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs