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The Auth.js project is now part of Better Auth.

Authentik Provider

Resources

Setup

Callback URL

https://example.com/api/auth/callback/authentik

Environment Variables

AUTH_AUTHENTIK_ID AUTH_AUTHENTIK_SECRET AUTH_AUTHENTIK_ISSUER

Configuration

/auth.ts
import NextAuth from "next-auth"; import Authentik from "next-auth/providers/authentik";   export const { handlers, auth, signIn, signOut } = NextAuth({  providers: [Authentik({  clientId: AUTH_AUTHENTIK_CLIENT_ID  clientSecret: AUTH_AUTHENTIK_CLIENT_SECRET  issuer: AUTH_AUTHENTIK_ISSUER  })] });
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issuer should include the slug without a trailing slash – e.g., https://my-authentik-domain.com/application/o/My_Slug

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