Auth0 getAccessToken() and getSession() Not Working in Next.js 15 App Router (Server & Client Components)

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Hello,

I faced the same problem trying to get the access token from the app router.

  • As of now, @auth0/nextjs-auth0 does not support getAccessToken() in App Router route handlers because it requires Node.js req/res.

  • You would need to keep your token API route in the Pages Router, or

Do this:

app/api/auth/token/route.ts

import { auth0 } from "@/lib/auth0";
import { NextResponse, NextRequest } from "next/server";

export async function GET(req: NextRequest) {
  const session = await auth0.getSession();
  return NextResponse.json({ accessToken: session?.tokenSet.accessToken });
}

Notice that the accessToken is a property, not a function.