DEV Community: Auth0 DevRel

How to Add Auth0 Authentication to Vercel v0 Apps (Step-by-Step)

Auth0 DevRel — Mon, 02 Nov 2026 05:00:00 +0000

Check out this tutorial from Staff Developer Advocate, Michael Liendo on how to build production-ready apps with Auth0 and v0. We launched a new Auth0 integration for v0 that lets builders add real authentication to the applications they build through prompts. Ask v0 to add login, protect a route, support B2B use-cases, connect an enterprise identity provider, or require MFA, and v0 sets up Auth0 instead of generating a placeholder authentication screen.

What You'll Learn:

How to prompt v0 to generate a functional app with the Google Pose SDK
Publishing and testing your v0 app on mobile with custom domain options
Integrating Auth0 into your v0 project for quick, secure authentication
Setting up Google Social Sign-In and database features using natural language prompts

Resources:

7 Auth0 Free Tier Limits You Must Know Before Building

Auth0 DevRel — Mon, 26 Oct 2026 04:00:00 +0000

Building on Auth0's free tier? While it is a powerful way to get started with identity management, hitting unexpected limits during production can break your system architecture. In this video, we break down the 7 things you must know before designing your auth flow around the Auth0 free plan.

Pricing is subject to change, please use https://auth0.com/pricing as the ultimate source of truth for pricing.

What You'll Learn:

Organizations: Managing the 5-organization cap across environments.
Enterprise Connections: How SAML, OIDC, and directory limits work (plus SAML vs. Social Logins).
Custom Domains: Enabling custom domains on the free plan without paying extra.
Password Hash Migration: Why lazy migration requires a custom database connection.
Fine-Grained Authorization (FGA): How resource-level permissions are billed separately.
Adaptive MFA: Understanding risk-based MFA vs. standard MFA availability.
Tenant Deletion: How to protect side projects and inactive tenants from automated cleanup.

Related Resources:

Don't Ship Dev Keys! Set Up Production-Ready Google OAuth in React

Auth0 DevRel — Mon, 28 Sep 2026 04:00:00 +0000

Learn how to integrate production-ready Gmail / Google Sign-In into your applications using Auth0. In this complete, step-by-step tutorial, Layla (Senior Developer Advocate at Auth0) walks you through setting up an Auth0 SPA, integrating the @auth0/auth0-react SDK with the useAuth0 hook, and configuring Google Cloud Console OAuth credentials to safely replace default development keys for production deployment.

What You'll Learn:

How to create and configure a Single Page Application (SPA) in the Auth0 Dashboard.
Integrating the @auth0/auth0-react SDK using Auth0Provider and useAuth0.
Wiring up a custom "Sign in with Google" button with loginWithRedirect.
Configuring Auth0 allowed callback, logout, and web origin URLs (localhost).
Creating OAuth 2.0 Client Credentials in Google Cloud Console.
Swapping default Auth0 developer keys for custom production Google Client IDs and Secrets.

Resources & Code Links

Also Watch

Timestamps:
00:15 - Creating an Auth0 Single Page Application
00:30 - Installing & Setting Up @auth0/auth0-react SDK
00:46 - Fetching Domain & Client ID for Environment Variables
01:00 - Wrap App with Auth0Provider
01:20 - Fetch Domain & Client ID from Auth0 Settings
01:43 - Use useAuth0 Hook & Wire Up Google Sign-In Button
01:56 - Wiring Up the Google Sign-In Button (useAuth0)
02:10 - Enabling Google Social Connection in Auth0
02:30 - Configuring Localhost URLs in Dashboard
03:07 - Why You Shouldn't Use Auth0 Shared Dev Keys in Production
03:23 - Setting Up OAuth Credentials in Google Cloud Console
05:05 - Adding Google Client ID & Secret to Auth0
05:42 - Testing Gmail OAuth Authentication Flow

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Add Auth0 to Your Hono App in Just 5 Lines of Code

Auth0 DevRel — Mon, 21 Sep 2026 04:00:00 +0000

Secure your Hono web applications everywhere they run—from Cloudflare Workers and Vercel Edge to Node.js, Bun, and Deno. In this demo, Auth0 Software Developer Tushar Pandey shows you how to ditch complex custom auth logic and integrate the official Auth0 Hono SDK in just five lines of code.

What You'll Learn:

How to mount the Auth0 middleware for automatic login, callback, and logout routing.
Protecting specific routes using the requiresAuth middleware.
Filtering access based on user roles using claimEquals.
Retrieving user profiles and managing API access tokens on the Edge.

🛠️ Resources & Links:

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How to Set Up Auth0 Organizations (SSO, Branding & Invitations)

Auth0 DevRel — Mon, 14 Sep 2026 04:00:00 +0000

Stop Building Multi-Tenant Auth from Scratch. Use This Instead.
Building a B2B SaaS application requires a complex multi-tenant infrastructure. In this technical walkthrough, Shreya Gupta and Lily Wisecarver demonstrate how to use Auth0 Organizations to effortlessly manage identity workflows for your business customers at scale. Learn how to isolate tenants, configure custom Single Sign-On (SSO) connections per client, and customize the login branding—all without reinventing the wheel.

What You'll Learn

How multi-tenancy works within Auth0 Organizations
Setting up distinct organization IDs for different business clients
Customizing the login UI and branding for specific tenants
Enabling specific enterprise and database connections (like Okta or Azure AD) per organization
Managin g user invitations and Role-Based Access Control (RBAC)

Keep Learning with Auth0

Chapters:
00:00 Introduction to B2B SaaS Multi-Tenancy
00:11 How Auth0 Organizations Work
02:05 Setting Up Organizations in the Dashboard
02:56 Custom Branding per Organization
03:27 Managing the Invitation Workflow
04:03 Enabling SSO & Database Connections
04:53 Customizing the Login Experience & Auto-Membership
06:13 Sending Invitations & Assigning Roles
07:44 The End-User Sign-Up Experience Demo
09:12 Conclusion & Next Steps

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How to Use the New Auth0 Vercel Native Integration (Full Next.js Walkthrough)

Auth0 DevRel — Mon, 13 Jul 2026 14:25:06 +0000

Manually syncing environment variables across your Dev, Staging, and Production environments is a massive developer velocity killer. In this tutorial, Michael Liendo breaks down the brand-new Auth0 Vercel Native Integration. Learn how to automatically provision separate Auth0 tenants for your development lifecycle, securely generate your client credentials, and pull them instantly into your Next.js application without manual configuration overhead.

🚀 What You’ll Learn:

How the Auth0 + Vercel Native Integration automates environment setup.
Provisioning separate Dev, Staging, and Production Auth0 tenants from the Vercel dashboard.
Configuring the Next.js SDK using automated project snippets.
Verifying real-time user authentication via Google OAuth2 locally.
Managing branch-specific environment variables for flawless deployments.

🔗 Resources:
📝 Auth0 Vercel Native Integration
💻 Announcement and Step-by-Step Walkthrough Blog Post
📖 Auth0 and Vercel Documentation
📂 SaaStart: Auth0 + Next.js SaaS Starter Kit