Brazilayer CNPJ Registry · Socio Busca

GETBase

$0.02

per call · USD Coin on Base

Reverse lookup: find every Brazilian company where a given person or entity appears as partner/shareholder, by name (full-text, accent-insensitive). Returns partner name, company CNPJ and legal name, role and entry date. The highest-value query for due diligence — data straight from the official Receita Federal CNPJ registry (personal tax IDs come pre-masked from the source). Free sample, no payment: https://api.brazilayer.com/v1/cnpj/amostra

Endpoint

GET https://api.brazilayer.com/v1/cnpj/socio/busca

Calls / 30d

Unique payers / 30d

Sep 7

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://api.brazilayer.com/v1/cnpj/socio/busca", {
  method: "GET",
});
const data = await res.json();

cURL

curl -X GET \
  "https://api.brazilayer.com/v1/cnpj/socio/busca?nome=fulano+de+tal&por_pagina=20" \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "resultados": [
    {
      "cnpj": "00000000",
      "nome_socio": "FULANO DE TAL",
      "qualificacao": {
        "codigo": "49",
        "descricao": "Sócio-Administrador"
      },
      "razao_social": "EMPRESA EXEMPLO LTDA"
    }
  ],
  "total": 3
}

Payment details

Pay to0x3cc1d8ee1dfdfd326c19b0884b8df4b24b623f0c

AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913

NetworksBase

Schemesexact

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