# Test authentication connection

Source: https://developer.avalara.com/products/tax-compliance/integration-guides/extractor-en/design_experience/test_connection/

Guide: Brazil Returns (Tax compliance) - English

# Test authentication connection

### Health Service (PING)

Use the [Health API](https://api-gateway.avalarabrasil.com.br/oauth/swagger/index.html) to verify service availability/PING.

![](https://www.avalara.com/content/dam/assets/ui/screenshots/ping_returns.png)

![](https://www.avalara.com/content/dam/assets/ui/screenshots/ping_returns02.png)

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