# Test authentication connection

Source: https://developer.avalara.com/goods-calculation-en/design_experience/test_connection/

## Health Service (PING)

Use the Health API to verify service availability/PING.

![Screenshot of the Avalara Brazil setup UI. The area for entering the service status shows as "Active service" and is outlined with a blue rectangle.](https://avalara-devdocs-prod.mcoutput.com/goods-calculation-en/Resources/Images/DevDot/br-servicestatus_avataxbr.png)

![Screenshot of the Avalara Brazil setup UI. The area for entering the service status shows as Unstable service" and is outlined with a blue rectangle.](https://avalara-devdocs-prod.mcoutput.com/goods-calculation-en/Resources/Images/DevDot/br-unstableservice_avataxbr.png)