# Ping the server

Source: https://developer.avalara.com/invoice_goods_en/authentication/ping/

# Ping the server

After you set up your authentication method, use "ping" once to verify that the service is up.

-   Run the [Health API](https://api-gateway.sandbox.avalarabrasil.com.br/portal/health) to verify the portal status: 

       https://api-gateway.sandbox.avalarabrasil.com.br/portal/health

-   Run the [OAuth API](https://api-gateway.sandbox.avalarabrasil.com.br/oauth/health) to verify the OAuth status: 

       https://api-gateway.sandbox.avalarabrasil.com.br/oauth/health

-   Run [Avatax Brazil API](https://avataxbr.sandbox.avalarabrasil.com.br/v3/ping) to verify Avatax Brazil status: 

       https://avataxbr.sandbox.avalarabrasil.com.br/v3/ping

**Advice:**

-   You only need to run the Health API once. If you want to periodically verify that the service is running, we recommend using a webhook and subscribe to [status.avalara.com](http://status.avalara.com) instead of pinging multiple times. 
-   If you do run multiple Health jobs, be sure that they run at least 5 minutes apart. If you do it in shorter periods, you may receive an error such as: "Hit Limit".

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