> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cnpj-api.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Bulk CNPJ Lookup

> Look up registration data for up to 20 CNPJs in a single request

<ParamField body="cnpjs" type="string[]" required>
  List of CNPJs without punctuation (14 digits each). Maximum of 20 CNPJs per request.
</ParamField>

<ParamField query="token" type="string">
  Authentication token. Preferred authentication method.
</ParamField>

## Requirements

* **Pro Plan**: This endpoint is only available to Pro plan users.
* **Limit**: Maximum of 20 CNPJs per request.
* Each call consumes 1 credit from your rate limit, regardless of the number of CNPJs.

## Data sources

* [Receita Federal](https://solucoes.receita.fazenda.gov.br/Servicos/cnpjreva/cnpjreva_solicitacao.asp)
* [Simples Nacional](https://www8.receita.fazenda.gov.br/SimplesNacional/aplicacoes.aspx?id=21)

Data updated monthly from Receita Federal public files. See [Rate Limits](/en/limites-de-uso).

<RequestExample>
  ```bash cURL theme={null}
  curl -X POST "https://api.cnpj-api.com/v1/bulk-cnpj?token=YOUR_TOKEN" \
    -H "Content-Type: application/json" \
    -d '{"cnpjs": ["12345678000195", "98765432000100"]}'
  ```
</RequestExample>