Marketplace · API · x402

api.brazilayer.com/v1/cnpj/busca

Search Brazilian companies in the official Receita Federal CNPJ registry. Filters (at least one required): nome (full-text on names, accent-insensitive), uf (state), municipio (4-digit RFB code), cnae, porte (size), abertura_de/abertura_ate (opening-date window YYYY-MM-DD, for newly registered companies), situacao (default "ativa"). Paginated; total capped at "10000+". Free sample, no payment: https://api.brazilayer.com/v1/cnpj/amostra

Endpointhttps://api.brazilayer.com/v1/cnpj/busca
Trust0% uptime over 1 checks · ~2656 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x3Cc1D8ee1dfdFd326c19B0884B8dF4b24B623f0c
methodGET
last updated2026-11-11T11:31:56.054Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.brazilayer.com/v1/cnpj/busca
# 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-c59b32eecb109326

Search the whole marketplace from your agent (MCP)

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

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