Auth0 Quickstart

Detect your framework and get started with Auth0 authentication.

Step 1: Detect Your Framework

Run this command to identify your framework:

# Check package.json dependencies
cat package.json | grep -E "react|next|vue|nuxt|angular|express|fastify|@nestjs"

# Or check project files
ls -la | grep -E "angular.json|vue.config.js|next.config"

Framework Detection Table:

Framework	Detection	Skill to Use
React (Vite/CRA)	`"react"` in package.json, no Next.js	`auth0-react`
Next.js	`"next"` in package.json	`auth0-nextjs`
Vue.js	`"vue"` in package.json, no Nuxt	`auth0-vue`
Nuxt	`"nuxt"` in package.json	`auth0-nuxt`
Angular	`angular.json` exists or `"@angular/core"`	`auth0-angular`
Express.js	`"express"` in package.json	`auth0-express`
Fastify (web app)	`"fastify"` in package.json, has `@fastify/view`	`auth0-fastify`
Fastify (API)	`"fastify"` in package.json, no view engine	`auth0-fastify-api`
React Native	`"react-native"` or `"expo"` in package.json	`auth0-react-native`

Don't see your framework? See Tier 2 Frameworks below.

Step 2: Auth0 Account Setup

Install Auth0 CLI

macOS/Linux:

brew install auth0/auth0-cli/auth0

Windows:

scoop install auth0
# Or: choco install auth0-cli

Full installation guide: See CLI Reference

Login to Auth0

auth0 login

This opens your browser to authenticate with Auth0.

Step 3: Create Auth0 Application

Choose application type based on your framework:

Single Page Applications (React, Vue, Angular):

auth0 apps create --name "My App" --type spa \
  --callbacks "http://localhost:3000" \
  --logout-urls "http://localhost:3000" \
  --metadata "created_by=agent_skills"

Regular Web Apps (Next.js, Nuxt, Express, Fastify):

auth0 apps create --name "My App" --type regular \
  --callbacks "http://localhost:3000/api/auth/callback" \
  --logout-urls "http://localhost:3000" \
  --metadata "created_by=agent_skills"

Native Apps (React Native):

auth0 apps create --name "My App" --type native \
  --callbacks "myapp://callback" \
  --logout-urls "myapp://logout" \
  --metadata "created_by=agent_skills"

Get your credentials:

auth0 apps list          # Find your app
auth0 apps show <app-id> # Get client ID and secret

More CLI commands: See CLI Reference

Step 4: Use Framework-Specific Skill

Based on your framework detection, use the appropriate skill:

Tier 1 Frameworks (Dedicated Skills)

Frontend:

auth0-react - React SPAs (Vite, Create React App)
auth0-nextjs - Next.js (App Router and Pages Router)
auth0-vue - Vue.js 3 applications
auth0-nuxt - Nuxt 3/4 applications
auth0-angular - Angular 12+ applications

Backend:

auth0-express - Express.js web applications
auth0-fastify - Fastify web applications
auth0-fastify-api - Fastify API authentication

Mobile:

auth0-react-native - React Native and Expo (iOS/Android)

Tier 2 Frameworks (Use Auth0 Docs)

Not yet available as separate skills. Use Auth0 documentation:

Frontend:

Backend:

Mobile:

Migration from Other Providers

Migrating from another auth provider? Use the auth0-migration skill.

The migration skill covers:

User export from Firebase, Cognito, Supabase, Clerk, etc.
Bulk import to Auth0
Code migration patterns (before/after examples)
JWT validation updates
Gradual migration strategies

Reference Documentation

Environment Variables

Framework-specific environment variable setup:

Auth0 Concepts

Core concepts and troubleshooting:

CLI Commands

Complete Auth0 CLI reference:

Common Mistakes

Mistake	Fix
Wrong application type	SPAs need "Single Page Application", server apps need "Regular Web Application", mobile needs "Native"
Callback URL not configured	Add your app's callback URL to Allowed Callback URLs in Auth0 Dashboard
Using wrong credentials	Client Secret only needed for Regular Web Apps, not SPAs
Hardcoding credentials in code	Always use environment variables, never commit secrets to git
Not testing locally first	Set up localhost URLs in Auth0 before deploying to production
Mixing application types	Don't use SPA SDK for server-side apps or vice versa

Related Skills

Core Integration

auth0-migration - Migrate from other auth providers

SDK Skills

auth0-react - React SPA integration
auth0-nextjs - Next.js integration
auth0-vue - Vue.js integration
auth0-nuxt - Nuxt 3/4 integration
auth0-angular - Angular integration
auth0-express - Express.js integration
auth0-fastify - Fastify web app integration
auth0-fastify-api - Fastify API integration
auth0-react-native - React Native/Expo integration

Advanced Features

auth0-mfa - Multi-Factor Authentication