cnpj.ai is answering right now. Last checked 11 min ago.
Empresas, sócios e conexões por CNPJ. Brazilian company data, ownership and corporate networks.
Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.
claude mcp add mcp --transport http https://mcp.cnpj.ai/mcp
https://mcp.cnpj.ai/mcp
[mcp_servers.mcp]
url = "https://mcp.cnpj.ai/mcp"
{
"mcpServers": {
"mcp": {
"url": "https://mcp.cnpj.ai/mcp"
}
}
}
{
"servers": {
"mcp": {
"type": "http",
"url": "https://mcp.cnpj.ai/mcp"
}
}
}
This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://mcp.cnpj.ai/mcp | streamable-http | sign-in | 234 ms | 11 min ago |
Maps the corporate ownership ties of a person or company from the CPF or CNPJ, showing holdings and
Brazilian company checks by CNPJ: registry, sanctions, federal contracts and CVM, with sources.
Bulk CNPJ lookup and enrichment with official Brazilian company registry data.
Brazilian company and person data by CNPJ/CPF: registry, partners, tax status, sanctions, lawsuits.
CNPJ API: Brazilian company records (Receita Federal open data). Google sign-in or API key
Empresas do Brasil (CNPJ): consulta por CNPJ, busca por filtros e uso da conta.
Find parent companies, PE backers, corporate families, and portfolio siblings for any company.
Balanços, DREs, DFPs e ITRs da CVM e IF.data do BCB. Brazilian companies' financial statements.
Answers built from our own checks of this server.