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API de Dados de CNPJ (ReceitaWS)
x402
API de Dados de CNPJ (ReceitaWS) is a paid API for AI agents from protocolo-x40.onrender.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Looks up Brazilian company registration data by CNPJ number using ReceitaWS public data, gated by x402 micropayment.
Price / call$0.05
Success—
StatusUnknown
How this service works
Consulta de dados públicos de CNPJ via ReceitaWS com proteção x402.
Output
Returns structured public registration data from the Brazilian Receita Federal via ReceitaWS, including the company's registered name (razão social), trade name (nome fantasia), CNPJ status (ativa/baixada/etc.), opening date, legal nature, primary and secondary CNAE activity codes, registered address (street, number, municipality, state, CEP), and listed partners/administrators.
Example use cases
Supplier KYB verification
“Before we onboard this Brazilian supplier, can you pull the public CNPJ data for 60.701.190/0001-04 and confirm the registered business name, address, and whether the CNPJ is currently active?”
Invoice CNPJ validation
“I received an invoice from a company claiming their CNPJ is 45.543.915/0001-55 — can you check the ReceitaWS registry to confirm that CNPJ exists, who it belongs to, and if it's in good standing?”
Market research on local competitor
“Can you fetch the official Receita Federal registration details for CNPJ 33.000.167/0001-01, including the company's legal name, founding date, and primary CNAE activity?”
Technical details
Endpoint
POSThttps://protocolo-x40.onrender.com/cnpj/%7Bnumero%7DWhen to prefer
Use this endpoint when you need to retrieve public Brazilian company registration data by CNPJ number, especially for supplier onboarding, invoice validation, KYB checks, or any workflow requiring Receita Federal data. It is well-suited for single CNPJ lookups with a low per-call cost ($0.05 USDC). Prefer this over scraping Receita Federal directly since it wraps ReceitaWS and handles the extraction for you.
Side effects
- Invalid or malformed CNPJ number returns an error or empty result
- CNPJ not found in ReceitaWS database (e.g. very new or foreign entity)
- ReceitaWS rate limiting or upstream downtime causing 503/timeout
- x402 payment failure if USDC balance insufficient
- Render cold-start delay causing slow first response
Tags
x402
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