> ## Documentation Index
> Fetch the complete documentation index at: https://bruno-a6972042-docs-timeline-scripts.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Oauth 2.0 authentication in Bruno

<Callout type="warning" emoji="">
  This OAuth 2 implementation is **specific to Bruno v1.x.x**. If using Bruno v2.x.x, please see the [documentation for that version](/auth/oauth2-2.0/overview).
</Callout>

Bruno currently supports OAuth2 authentication for the following three grant types:

* [Authorization Code](/auth/oauth2/authorization-code)
* [Client Credentials](/auth/oauth2/client-credentials)
* [Password Credentials](/auth/oauth2/password-credentials)

<Callout type="info" emoji="">
  Bruno does not provide a default callback URL for OAuth2. You will need to configure your own callback URL when setting up OAuth2 authentication.
</Callout>