Umbraco Auth Provider

What is it?

An Auth Provider enables external login (OAuth/SSO) for the Umbraco backoffice. It provides the UI component (login button) that connects to a backend authentication provider. The backend must be configured separately in C# - this extension type handles the frontend presentation and behavior. Common providers include Google, Microsoft, GitHub, and custom OAuth providers.

Documentation

Always fetch the latest docs before implementing:

• External Login Providers: https://docs.umbraco.com/umbraco-cms/reference/security/external-login-providers
• Extension Types: https://docs.umbraco.com/umbraco-cms/customizing/extending-overview/extension-types
• Foundation: https://docs.umbraco.com/umbraco-cms/customizing/foundation

Workflow

1. Fetch docs - Use WebFetch on the URLs above
2. Ask questions - Which OAuth provider? Custom UI needed? Auto-redirect?
3. Configure backend - Set up C# authentication provider first
4. Generate frontend files - Create manifest + optional custom element
5. Explain - Show what was created and how to test