The Reverb API authentication is via OAuth2 tokens. For apps that only need to access public data, the Client Credentials Flow is available. Please see the table below for guidance on which method to choose.
If you want to..
Use..
Develop an app that is only used by you and accesses your data OR accesses only public data.
Develop an app that allows multiple users to "Log in with Reverb" and interact with user data on behalf of those users, or log in with your own account to manage your own information.
Develop an in-browser / client-side app where it's not possible to store a secret.