auth0-fastify-api
Auth0 Fastify API Integration
Protect Fastify API endpoints with JWT access token validation using @auth0/auth0-fastify-api.
Prerequisites
- Fastify API application (v5.x or newer)
- Node.js 20 LTS or newer
- Auth0 API configured (not Application - must be API resource)
- If you don't have Auth0 set up yet, use the
auth0-quickstartskill first
When NOT to Use
- Server-rendered web applications - Use
@auth0/auth0-fastifyfor session-based auth - Single Page Applications - Use
auth0-react,auth0-vue, orauth0-angularfor client-side auth - Next.js applications - Use
auth0-nextjsskill - Mobile applications - Use
auth0-react-nativefor React Native/Expo
More from auth0/agent-skills
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Use when adding authentication or login to any app - detects your stack (React, Next.js, Vue, Nuxt, Angular, Express, Fastify, FastAPI, ASP.NET Core, React Native, Expo, Android, Swift), sets up an Auth0 account if needed, and routes to the correct SDK setup workflow.
1.5Kauth0-nextjs
Use when adding authentication to Next.js applications (login, logout, protected pages, middleware, server components) - supports App Router and Pages Router with @auth0/nextjs-auth0 SDK.
969auth0-react
Use when adding authentication to React applications (login, logout, user sessions, protected routes) - integrates @auth0/auth0-react SDK for SPAs with Vite or Create React App
828auth0-react-native
Use when adding authentication to React Native or Expo mobile apps (iOS/Android) with biometric support - integrates react-native-auth0 SDK with native deep linking
517auth0-express
Use when adding authentication (login, logout, protected routes) to Express.js web applications - integrates express-openid-connect for session-based auth.
416auth0-mfa
Use when adding MFA, 2FA, TOTP, SMS codes, push notifications, passkeys, or when requiring step-up verification for sensitive operations or meeting compliance requirements (HIPAA, PCI-DSS) - covers adaptive and risk-based authentication with Auth0.
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