Bird now offers a guided integration for Auth0. The setup walks through using Bird as Auth0's Custom Phone Provider, with screenshots of each step and the provider code to paste.

Auth0 generates and checks each sign-in code. Bird Verify delivers it by SMS or voice call for MFA, and by SMS only for passwordless login.

Account notifications, such as blocked-account, password-change and password-breach messages, go out through Bird SMS using the text from Auth0 templates.

Setup needs a Bird API key stored as an Auth0 secret and an SMS sender for notifications. No OAuth client is required.