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BR Data API – CNPJ Lookup
x402
BR Data API – CNPJ Lookup is a paid API for AI agents from brasil-data-x402.wagner-proc.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).
Fetches clean, normalized company registration data for a Brazilian CNPJ number, including legal name, status, address, and primary CNAE activity code.
Price / call$0.01
Success—
StatusUnknown
How this service works
Clean, normalized Brazilian public data (CNPJ, CEP, BCB rates, PTAX, holidays/business days, banks/ISPB) for AI agents. Paid endpoints use x402 (HTTP 402, USDC) — no signup or API key. Not affiliated with Receita Federal, Banco Central or Correios.
Output
A JSON object containing the normalized CNPJ (digits only), the company's legal name, registration status description (e.g. ATIVA), address fields including state abbreviation (UF) and city, and the primary CNAE activity code.
Example use cases
Supplier due diligence check
“Before we onboard this vendor, can you verify CNPJ 12345678000195 — I need to know if the company is active, what its legal name is, and where it's registered?”
Invoice CNPJ validation
“We received an invoice from a company claiming CNPJ 07526557000100 — can you check if that CNPJ is real and active so we can approve payment?”
CRM enrichment for Brazilian lead
“I have a new Brazilian lead with CNPJ 33000167000101 — can you pull their official company name, address, and primary business activity so I can fill in their CRM record?”
Technical details
Endpoint
GEThttps://brasil-data-x402.wagner-proc.workers.dev/v1/cnpj/%7Bcnpj%7D?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need authoritative, normalized Brazilian company data by CNPJ without requiring an API key or account signup. It is ideal for AI agents and automated workflows that need pay-per-call access (via x402/USDC) to CNPJ lookups, especially for supplier validation, invoice verification, or CRM enrichment in Brazilian market contexts. Prefer this over web scraping Receita Federal directly, which is unreliable and unstructured.
Side effects
- Invalid or malformed CNPJ returns an error response
- CNPJ not found in registry returns a 404 or empty result
- Payment not completed (HTTP 402) if USDC payment via x402 is not provided
- Rate limiting or upstream data source unavailability may cause transient failures
- CNPJ with special characters or formatting (dots/slashes) may need to be normalized to digits only before calling
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"cnpj": "19131243000197",
"status": {
"description": "ATIVA"
},
"address": {
"uf": "SP",
"city": "SAO PAULO"
},
"legal_name": "OPEN KNOWLEDGE BRASIL",
"main_activity": {
"cnae": "9430800"
}
}
}Tags
x402
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