---
title: DAM4G APIs
slug: dam4g
url: https://apyhub.com/providers/dam4g
---

# DAM4G APIs

Practical utility APIs for developers — document validation, data lookups and more.

## APIs

- [Validate Brazilian CNPJ Number API](https://apyhub.com/dam4g/service/check-cnpj.md): Validate Brazilian CNPJ numbers and get the original value, document type, validity flag, and formatted value for clean downstream handling.
- [Validate Brazilian CNH Number API](https://apyhub.com/dam4g/service/check-cnh.md): Validate a Brazilian CNH number and get back is_valid, input_value, document_type, and formatted_value for form checks and data cleanup.
- [Validate Brazilian CPF Number API](https://apyhub.com/dam4g/service/check-cpf.md): Validate Brazilian CPF numbers and get a validity result with the original input, document type, and formatted value when available.