Use when adding authentication (login, logout, protected routes) to Fastify web applications - integrates @auth0/auth0-fastify for session-based auth. For stateless Fastify APIs use auth0-fastify-api instead.

Use when securing Fastify API endpoints with JWT Bearer token validation, scope/permission checks, or stateless auth - integrates @auth0/auth0-fastify-api for REST APIs receiving access tokens from frontends or mobile apps.

Use when adding authentication or login to any app - detects your stack (React, Next.js, Vue, Nuxt, Angular, Express, Fastify, React Native), sets up an Auth0 account if needed, and routes to the correct SDK setup workflow.

Use when adding authentication or login to any app - detects your stack (React, Next.js, Vue, Nuxt, Angular, Express, Fastify, React Native), sets up an Auth0 account if needed, and routes to the correct SDK setup workflow.