Auth0

Use this skill to build B2B authentication for multiple customer organizations with Auth0 and @auth0/nextjs-auth0 v4. It covers passing an organization at login, reading and validating its ID, accepting invitations, and configuring organizations and connections.

• Separating login and access by customer organization
• Passing an organization ID through a login flow
• Accepting an organization invitation in a Next.js app

Implement passkey signup, sign-in, and enrollment for signed-in users with @auth0/nextjs-auth0 v4. The skill explains how server handlers create challenges and exchange credentials, while the browser performs WebAuthn and serializes the result.

• Adding passkey signup to a Next.js application
• Building passkey sign-in with browser WebAuthn
• Letting signed-in users enroll another passkey

Build multi-factor authentication flows with @auth0/nextjs-auth0 v4. The skill covers redirect and server-triggered step-up checks, managing authenticators, and popup challenges, including how to pass MFA tokens safely and handle common errors.

• Requiring MFA before a sensitive action
• Redirecting users to complete an MFA challenge
• Enrolling or verifying an authenticator

Set up Auth0 authentication in Next.js with @auth0/nextjs-auth0 v4 for App Router or Pages Router. Configure the client and middleware, add login and user context, protect pages and API routes, and retrieve sessions or access tokens for API calls.

• Adding Auth0 login to a Next.js application
• Configuring middleware and authentication routes
• Protecting pages and API endpoints