Add authentication to Express.js web applications using express-openid-connect.
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Before installing skills in Cursor, ensure your development environment meets these requirements:
node --versionauth0-expressExecute the skills CLI command in your project's root directory to begin installation:
Fetches auth0-express from auth0/agent-skills and configures it for Cursor.
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
Confirm successful installation by checking the skill directory location:
Restart Cursor to activate auth0-express. Access via /auth0-express in your agent's command palette.
We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.
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Create detailed user stories, acceptance criteria, and feature specs
Example
Generate user stories for 'password reset feature' with acceptance criteria, edge cases, and test scenarios
Reduce spec writing time by 50%, ensure comprehensive coverage
Research competitors, compare features, identify gaps
Example
Analyze 5 competitor products, create feature comparison matrix, suggest differentiation opportunities
Complete competitive research in 2 hours instead of 2 days
Evaluate features using frameworks (RICE, ICE, Kano) and create prioritized backlogs
Example
Score 20 feature ideas using RICE framework, generate prioritized roadmap with rationale
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Add authentication to Express.js web applications using express-openid-connect.
auth0-quickstart skill firstauth0-react, auth0-vue, or auth0-angular for client-side authauth0-nextjs skill which handles both client and serverauth0-react-native for React Native/Exponpm install express-openid-connect dotenv
For automated setup with Auth0 CLI, see Setup Guide for complete scripts.
For manual setup:
Create .env:
SECRET=<openssl-rand-hex-32>
BASE_URL=http://localhost:3000
CLIENT_ID=your-client-id
CLIENT_SECRET=your-client-secret
ISSUER_BASE_URL=https://your-tenant.auth0.com
Generate secret: openssl rand -hex 32
Update your Express app (app.js or index.js):
require('dotenv').config();
const express = require('express');
const { auth, requiresAuth } = require('express-openid-connect');
const app = express();
// Configure Auth0 middleware
app.use(auth({
authRequired: false, // Don't require auth for all routes
auth0Logout: true, // Enable logout endpoint
secret: process.env.SECRET,
baseURL: process.env.BASE_URL,
clientID: process.env.CLIENT_ID,
issuerBaseURL: process.env.ISSUER_BASE_URL,
clientSecret: process.env.CLIENT_SECRET
}));
app.listen(3000, () => {
console.log('Server running on http://localhost:3000');
});
This automatically creates:
/login - Login endpoint/logout - Logout endpoint/callback - OAuth callback// Public route
app.get('/', (req, res) => {
res.send(req.oidc.isAuthenticated() ? 'Logged in' : 'Logged out');
});
// Protected route
app.get('/profile', requiresAuth(), (req, res) => {
res.send(`
<h1>Profile</h1>
<p>Name: ${req.oidc.user.name}</p>
<p>Email: ${req.oidc.user.email}</p>
<pre>${JSON.stringify(req.oidc.user, null, 2)}</pre>
<a href="/logout">Logout</a>
`);
});
// Login/logout links
app.get('/', (req, res) => {
res.send(`
${req.oidc.isAuthenticated() ? `
<p>Welcome, ${req.oidc.user.name}!</p>
<a href="/profile">Profile</a>
<a href="/logout">Logout</a>
` : `
<a href="/login">Login</a>
`}
`);
});
Start your server:
node app.js
Visit http://localhost:3000 and test the login flow.
| Mistake | Fix |
|---|---|
| Forgot to add callback URL in Auth0 Dashboard | Add /callback path to Allowed Callback URLs (e.g., http://localhost:3000/callback) |
| Missing or weak SECRET | Generate secure secret with openssl rand -hex 32 and store in .env as SECRET |
| Setting authRequired: true globally | Set to false and use requiresAuth() middleware on specific routes |
| App created as SPA type in Auth0 | Must be Regular Web Application type for server-side auth |
| Session secret exposed in code | Always use environment variables, never hardcode secrets |
| Wrong baseURL for production | Update BASE_URL to match your production domain |
| Not handling logout returnTo | Add your domain to Allowed Logout URLs in Auth0 Dashboard |
auth0-quickstart - Basic Auth0 setupauth0-migration - Migrate from another auth providerauth0-mfa - Add Multi-Factor AuthenticationMiddleware Options:
authRequired - Require auth for all routes (default: false)auth0Logout - Enable /logout endpoint (default: false)secret - Session secret (required)baseURL - Application URL (required)clientID - Auth0 client ID (required)issuerBaseURL - Auth0 tenant URL (required)Request Properties:
req.oidc.isAuthenticated() - Check if user is logged inreq.oidc.user - User profile objectreq.oidc.accessToken - Access token for API callsreq.oidc.idToken - ID tokenreq.oidc.refreshToken - Refresh tokenCommon Use Cases:
requiresAuth() middleware (see Step 4)req.oidc.isAuthenticated()req.oidc.userMake data-driven prioritization decisions faster
Draft PRDs, status updates, and stakeholder presentations
Example
Create executive summary of Q3 roadmap, monthly progress report, feature launch announcement
Save 3-5 hours/week on communication overhead
Prerequisites
Time Estimate
30-60 minutes to see productivity improvements
Steps
Common Pitfalls
✓ Do
✗ Don't
💡 Pro Tips
✓ Use when
Use for user story writing, competitive research, roadmap prioritization, stakeholder communication, and PRD drafting. Best for reducing repetitive documentation and research work.
✗ Avoid when
Avoid for strategic product vision (requires deep customer empathy), pricing decisions (needs market and financial expertise), or when face-to-face customer discovery is more valuable than speed.
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Registry listing for auth0-express matched our evaluation — installs cleanly and behaves as described in the markdown.
auth0-express is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.
Keeps context tight: auth0-express is the kind of skill you can hand to a new teammate without a long onboarding doc.
Useful defaults in auth0-express — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
I recommend auth0-express for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
Useful defaults in auth0-express — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
auth0-express is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.
auth0-express has been reliable in day-to-day use. Documentation quality is above average for community skills.
Useful defaults in auth0-express — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
auth0-express has been reliable in day-to-day use. Documentation quality is above average for community skills.
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