Marketplace · API · x402

api.brazilayer.com/v1/cnpj/situacao/:cnpj

Does this CNPJ exist in the official Receita Federal registry, and is it active? Returns existence, registration status (situacao_cadastral: Ativa=active, Suspensa=suspended, Baixada=closed) with date, headquarters/branch flag and state. Cheapest paid check in the catalog: digit arithmetic alone cannot tell a well-formed number from a real, active company. Free sample, no payment: https://api.brazilayer.com/v1/cnpj/amostra

Endpointhttps://api.brazilayer.com/v1/cnpj/situacao/:cnpj
Trust✓ Verified callable · 100% uptime over 1 checks · ~2659 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x3Cc1D8ee1dfdFd326c19B0884B8dF4b24B623f0c
methodGET
last updated2026-11-13T00:19:26.228Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.brazilayer.com/v1/cnpj/situacao/:cnpj
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-4fe7b5e4a6a90c15

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}

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