> For the complete documentation index, see [llms.txt](https://docs.klai.studio/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.klai.studio/engineering-reference-docs/setting-up-auth0/getting-started/additional-customizations/allowed-callback-urls.md).

# Allowed Callback URLs

This URL will be used by Auth0 to redirect the user back to your BF app, and the value should be as follows:

```javascript
https://yourapp.domain.com/oauth/auth0/callback
```

If multiple domains are being used, multiple domains can be added using comma as the separator.

```javascript
<https://yourapp1.domain.com/oauth/auth0/callback>, <https://yourapp2.domain.com/oauth/auth0/callback>
```