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MiniFrame CNPJ Lookup
x402
MiniFrame CNPJ Lookup is a paid API for AI agents from tools.miniframe.com.br, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Fetches official Brazilian company registry data for a given CNPJ tax ID, returning legal name, status, address, CNAE activities, share capital, and partner list (QSA).
Price / call$0.01
Success—
StatusUnknown
How this service works
Use when you need a Brazilian company's official record from its CNPJ — checking a supplier is active, confirming a legal name, enriching a lead. JSON body { cnpj } (14 digits). Returns name, status, address, CNAE activities, share capital and the public partner list (QSA) with masked tax IDs. Personal contact fields omitted.
Output
A JSON object containing the company's official legal name, current registration status (active/inactive/etc.), full registered address, list of CNAE economic activities, share capital amount, and the QSA (Quadro de Sócios e Administradores) partner list with masked tax IDs. Personal contact fields are excluded.
Example use cases
Validate supplier before vendor onboarding
“I'm about to sign a contract with a new Brazilian supplier — can you check their CNPJ 07526847000145 to verify they're an active company, confirm their legal name matches what they told us, and see who the actual owners are?”
Enrich sales lead with official company data
“We have a potential client in Brazil with CNPJ 28865114000102 — pull their official registration so I can see their legal name, what business activities they're registered for, their office address, and who owns the company before I reach out?”
KYC due diligence for business transaction
“Before we proceed with this partnership agreement, I need you to look up CNPJ 34028316000152 in the official registry — check if they're currently active, what their share capital is, their registered address, and get me the full partner list with any relevant details.”
Technical details
Endpoint
POSThttps://tools.miniframe.com.br/cnpjWhen to prefer
Use this endpoint when you need authoritative, government-sourced Brazilian company data for a specific CNPJ — especially for supplier verification, lead enrichment, KYC due diligence, or confirming legal entity details before a business transaction. Prefer this over web scraping or third-party aggregators when official accuracy and structured output (including QSA partner list and CNAE codes) are required.
Side effects
- Invalid or malformed CNPJ (not 14 digits) — returns validation error
- CNPJ not found in the registry — returns 404 or empty result
- Upstream Brazilian registry API unavailable — returns 503 or timeout
- Rate limiting or payment failure — returns 402 or 429
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| cnpj | string | Brazilian company tax ID, 14 digits (with or without punctuation). |
Output
Schema · Response
{
"type": "json",
"example": {
"cnpj": "00000000000191",
"size": "DEMAIS",
"is_mei": false,
"source": "brasilapi",
"status": "ATIVA",
"address": {
"zip": "01310100",
"city": "São Paulo",
"state": "SP"
},
"partners": [
{
"name": "FULANO DE TAL",
"role": "Diretor",
"tax_id_masked": "***550179**"
}
],
"company_name": "BANCO DO BRASIL SA",
"main_activity": {
"code": 6422100,
"description": "Bancos múltiplos"
}
}
}Tags
x402
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