Brazil CNPJ Registry

live GovernmentFinance

Brazilian company registry (CNPJ / Receita Federal) lookup — legal name, status, CNAE activity, share capital, tax regime, and partner list for any Brazil company. The KYB primitive for Brazil.

1 tools
0ms auth
free tier 50 calls/day

Tools

cnpj_lookup

Look up a Brazilian company in the CNPJ registry (Receita Federal, Brazil's federal tax authority) — the primary KYB / due-diligence check for any Brazil company. Give a 14-digit CNPJ (punctuation ok:

No parameters required.

▶ Try it

Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/cnpj-br/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/cnpj-br/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"cnpj_lookup","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("cnpj_lookup", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("brazilian company registry (cnpj / receita federal) lookup — legal name, status, cnae activity, share capital, tax regime, and partner list for any brazil company");