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Add authentication to Next.js applications using @auth0/nextjs-auth0 v4 (App Router + Pages Router): install, Auth0Client singleton, middleware/proxy route mounting, env config, useUser, getSession/getAccessToken, protecting pages and API routes, and step-up MFA. Entry point for all nextjs-auth0 skills.
Files4 files
SKILL.md686 lines
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Manual Install
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Skill details
Versionv1.0.0
AuthorAuth0
Categorycoding
Skill IDauth0/nextjs-auth0/skills
Files4 files
Related skills
MfaMulti-factor authentication with @auth0/nextjs-auth0 v4: redirect step-up via Universal Login (amr gating), server-side step-up on mfa_required, the MFA management API (getAuthenticators, enroll, challenge, verify), and reactive step-up via mfa.challengeWithPopup(). Covers the beforeSessionSaved amr hook, the secure mfa_token handoff, and MFA error classes.OrganizationsAuth0 Organizations (multi-tenant B2B) with @auth0/nextjs-auth0 v4: pass organization at login via authorizationParameters / the /auth/login query param / startInteractiveLogin, read org_id back from the session, validate it on the backend, accept invitations, and configure orgs/connections via the Auth0 CLI or Terraform.PasskeysPasskey (WebAuthn) flows with @auth0/nextjs-auth0 v4: signup, sign-in, and My Account enrollment using the server-side auth0.passkey.* API inside App Router route handlers or server actions, with navigator.credentials and serializeCredential in the browser.Auth0Use when adding, fixing, or improving how an app authenticates users or protects an API, or when using or configuring any Auth0 feature — signing users in and out, sessions and tokens, guarding routes and endpoints, MFA, SSO, Organizations, RBAC, custom domains, Universal Portals for hosted account and organization self-service, or Universal Login branding. Also use to audit a tenant's health, security, and plan fit (CheckMate), to debug why an auth flow fails, to migrate from another auth proviAuth0Use when adding, fixing, or improving how an app authenticates users or protects an API, or when using or configuring any Auth0 feature — signing users in and out, sessions and tokens, guarding routes and endpoints, MFA, passwordless passkey login (WebAuthn), SSO, Organizations, RBAC, custom domains, Universal Portals for hosted account and organization self-service, or Universal Login branding. Also use to audit a tenant's health, security, and plan fit (CheckMate), to debug why an auth flow faVercel React Best PracticesReact and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.