Auth0 Blog

The Auth0 Blog provides technical articles on identity, authentication, security, and modern application development. Each post is available in markdown format by appending .md to the URL (e.g., /blog/post-slug.md).

Recent Posts

• Auth0-Powered SaaS Providers Unlock Growth with the Okta Integration Network: Jamf manages and secures millions of Apple devices. Augment Code (now part of Harness) helps engineering teams deploy their software factory. Both are
• Scaling AI Agent Identity with CIMD and Application Profiles in Auth0: Auth0 expands Client ID Metadata Document (CIMD) support with manual pre-registration and dynamic registration. Pair it with Application Profiles to m
• Introducing Terraform Auth0 Modules: Set up apps, APIs, roles, MFA, enterprise SSO, and custom domains on Auth0 with a single Terraform module.
• Your Agent Can Better Drive the Auth0 CLI with Agent Mode: Explore Auth0 CLI agent mode: structured JSON, schema checks, predictable error recovery, and more built specifically for AI coding agents.
• ID-JAG, Explained: The New OAuth Grant for Cross-App Access: Learn what an ID-JAG (Identity Assertion JWT Authorization Grant) is, the cross-app access problem it solves, and how the flow works between a request
• Securing AI Agents with Auth0 CIMD and Token Exchange: AI agents break static authorization. Learn how Auth0 Strict Mode, CIMD, and Token Exchange keep a permission ceiling and a verifiable user-to-agent d
• Securing the Front Door of Agentic Commerce: Four Channels, One Identity Layer: AI agents now shop for your customers in four channels. Learn how one identity layer recognizes each agent, links it to a real customer, scopes what i
• On-Behalf-Of Is a Pattern. Token Exchange Is the Standard.: Find out the difference between On-Behalf-Of and OAuth Token Exchange, and why the two are often confused.
• Agentic Development: Time to Shift the Focus: Agents can turn ideas into pull requests in almost no time. The hard part now is deciding what to build and validating that generated code is safe to
• One SDK, Multiple Platforms: Introducing the Auth0 SDK for Kotlin Multiplatform: Add login, logout, and secure token storage to iOS and Android apps using the Auth0 Kotlin Multiplatform SDK. Simplify cross-platform auth.
• Introducing the Auth0 SDK for TanStack Start: Meet the new Auth0 SDK for TanStack Start and learn how to use it to add authentication to your apps.
• Multi-Tenant SaaS Apps with Auth0 Organizations — Part One: If you are building a B2B SaaS product multi-tenancy is a foundational requirement. Your customers are companies, and each company expects its own iso
• Everybody Thinks Login Is Easy. Until It Is Not: A login form can be small. The identity system behind it rarely stays that way.
• Turning Customer Identity into A Growth Engine: Unveiling the Auth0 Identity Conversion Suite.
• Auth0 Metadata Explained: user_metadata vs app_metadata: user_metadata and app_metadata aren't interchangeable. Users can edit one, not the other. Learn how this distinction becomes a security boundary in yo
• Architecting Secure Identity: Extending Auth0 PrivateLink with Intelligent Gateways: Route Auth0 Outbound PrivateLink traffic across multiple isolated VPCs from a single secure tunnel — using an API Gateway as a fan-out layer with Auth
• Seven Architectural Readiness Checks Before Production Launch: Ensure your identity pipeline is production-ready, eliminate onboarding friction, and scale your application smoothly with Auth0 self-service plans.
• Integrating Claude Code with Auth0 APIs: Pair Claude Code with the Auth0 MCP Server to audit JWT configs, scaffold M2M apps, and refactor auth code from the terminal — with scoped access and
• Introducing IdentiFlows.dev: A Visual Reference for Identity Flows: Find out how to quickly get the identity flow diagram you were looking for and cannot remember where you last saw it.
• Auth0 for ChatGPT - Build and Manage Identity by Just Asking: The Auth0 plugin for ChatGPT can connect your account and configure applications, generate real SDK code matched to your tenant, and get accurate Auth
• Securing Agentic Commerce Using Auth0 and the Universal Commerce Protocol (UCP): Explore how the UCP and Auth0 enable secure agentic commerce, allowing retail brands to safely transact through AI agents.
• Stop Building MFA from Scratch (And What to Do Instead): Learn about the hidden costs of building multi-factor authentication (MFA) from scratch and how Auth0 streamlines the implementation process.
• Confused Deputy: The Old Bug That AI Agents Keep Reintroducing: A category of vulnerability we aimed to eradicate is re-emerging with the rise of AI agents.
• Building Secure AI Agents with Microsoft Agent Framework and Auth0: Human-in-the-Loop Approval: Ensure your AI agent asks for your permission before performing a critical action.
• Auth0 Agent Gateway: The Identity Control Plane for Customer-Facing AI: Learn how the Auth0 Agent Gateway Beta acts as a CIAM control plane to secure, authorize, and govern customer-facing AI agents across multi-tenant Saa
• Optimize Your Identity Flows with Auth0 Identity Conversion Suite: Turn identity into a growth driver. Convert more, protect every interaction, and scale with data-backed confidence.
• Move and Scale Faster with FGA Permissions Index: Authorization that scales with you. Leverage precomputed user permissions to instantly verify what users can access.
• Preventing Destructive Actions with Step-up Authentication: Cursor built a "reset all scores" feature from a single prompt, gated by a fresh MFA step-up.
• Vibe Production-Ready Apps with Auth0 and v0: Stop relying on generic login forms. Use the new Auth0 v0 integration on the Vercel identity platform to build secure, production-ready AI app authent
• A Developer's Guide to API Access Policies in Auth0: Explore how to properly configure Auth0 API Access Policies and client grants to draw a hard line between strict M2M security and user-delegated acces
• Adding Google Login to a React App with Auth0: Add Google login to a React app with Auth0. A step-by-step tutorial from installing the Auth0 React SDK to configuring your own production Google cred
• Why You're Getting 429s in Production Using Auth0 and How to Stop Them: Getting Auth0 429 status code errors in production? They almost always trace back to APIs rate limit. Here are the two causes and how to fix them.
• Audit Your Auth0 Tenant with Auth0 Agent Skills: Audit your Auth0 tenant’s security and configuration, assess capability and plan fit, and generate a personalized report with prioritized recommendati
• Five Reasons Why Your Auth0 Permissions Are Not in your Access Token: Decoding your Auth0 JWT and seeing an empty permissions array? Here are 5 common reasons your Auth0 RBAC permissions are missing and how to fix them f
• How to Make Your AI Agent Enterprise-Ready: Enabling Enterprise-Managed Authorization for Client Apps in Auth0: Implement Enterprise-Managed Authorization in Auth0 using Cross App Access (XAA) and ID-JAG. Build enterprise-ready AI agents without friction.
• Securing Agentic Commerce: Identity as the Foundation of the World’s Newest Shopping Channel.
• Type-Safe Authentication in Rust with Auth0 and Axum: Secure your Rust CLI applications with Auth0 Device Code flow and protect your Axum backend endpoints by validating JWTs with Rust's type safety.
• Migrating to Auth0 for Startups from Another Auth Solution: Interviewing Evenpay on building trust from day one.
• Whatever You Are Building, Auth0 Has a Plan: Learn how Auth0 pricing plans scale with your app — from free auth for AI vibe coders to B2B Enterprise SSO for scaling startups and enterprise platfo
• Auth0, Made for Whatever You Are Building: A letter from a former founder, current devrel, and avid builder
• Branded Login URLs and Email Workflows for Production Auth: Learn how implementing an Auth0 custom domain, capturing user metadata via Universal Login partials, and configuring custom transactional email workfl
• Adding a UI to an Auth0-secured MCP server with Skybridge: MCP clients can render UIs as iframes inside ChatGPT and Claude, but getting Auth0-verified identity into that UI is trickier than it looks. Skybridg
• Enterprise-Managed Authorization for your MCP server: Setting Up and Testing XAA in Auth0: Configure Auth0 as your XAA Resource App and trace every token exchange step by step.
• Enterprise Readiness Is Not What You Support. It Is What Your Customers Can Own: In the latest episode of What the SaaS?!, learn how SafetyCulture eliminated 60% of SSO support tickets by moving to Auth0 self-service enterprise con
• Building Secure AI Agents with Microsoft Agent Framework and Auth0: Sending Email with Token Vault: Allow your .NET AI agent to send emails on your behalf securely using the Auth0 Token Vault.
• Device Authorization Flow for a Rust CLI and an Axum API: CLI tools have no browser and no redirect URL — Auth0's Device Authorization Flow is the purpose-built fix. Build a Rust CLI that authenticates via de
• Auth0 Learning: The New Skill-Building Platform for Developers: We listened to your feedback and built Auth0 Learning. Find courses, track your progress, and earn Auth0 skill badges on a platform built just for you.
• Building Secure AI Agents with Microsoft Agent Framework and Auth0: RAG Filtering: Learn how to build a RAG system with Microsoft Agent Framework and protect it with Auth0 Fine-Grained Authorization.
• Intent, Not Just Permissions: Rethinking Authorization for AI Agents: Why RBAC and least privilege fall short for AI agents, and how task-based authorization using Auth0 FGA is one of the ways to enforce intent as a per-
• Embed Account Security Management in Your Android App with Auth0 Universal Native Components: Learn how to build a production-ready native post-login experience in Android using Auth0 Universal Native Components.
• Adopting the Cross App Access Protocol: Get Ready for MCP Enterprise-Managed Authorization with Auth0: Explore how to expose APIs and MCP servers to trusted AI agents using Auth0 and the Cross App Access (XAA) protocol.
• Building Secure AI Agents with Microsoft Agent Framework and Auth0: User Authentication: Learn how to add user authentication to an AI agent built with Microsoft Agent Framework and C#: the first step to secure it and the first part of a n
• Handling Auth in Next.js 16 with Server Actions and Middleware: Learn how to implement secure Next.js 16 auth using Auth0 SDK v4, Next.js middleware, Server Actions, and Server Components.
• Token Vault Privileged Worker: Secure Access for Agents That Never Sleep: Stop storing raw refresh tokens. Discover how Auth0 Token Vault Privileged Worker enables secure background AI agent access without user sessions.
• Agent as Principal: A Purpose-Built Identity for Agents: Learn why traditional M2M security fails for AI infrastructure and how treating your AI Agent as a Principal unlocks secure, production-ready workflow.