Blog

Understand why scopes and claims serve different roles in OAuth 2.0 and OpenID Connect, and how to design around each.

A developer's guide to registering redirect URIs per environment, debugging "invalid redirect URI" errors, and knowing when to use impersonation instead.

Authentication doesn't end at login. For modern SaaS applications, the real security perimeter is the token, and attackers know it.

Architecture, auth, ecosystem, and the 2026 roadmap for the protocol that connects AI to everything.

Why skipping audience validation lets attackers replay tokens across services, and how to fix it.

Add a "Sign in with Slack" button to your app in minutes using WorkOS AuthKit.

Decode, verify, and inspect JWTs; built by the team that does auth for a living.

Common threats from sign-up to sign-in: what can go wrong, how attackers exploit it, and how to stop them.

A practical comparison of the two protocols reshaping how agents pay for services in 2026.

A practical comparison of modern auth providers, trade-offs, and best practices for React Router apps.

The Model Context Protocol's 2026 roadmap acknowledges what enterprises deploying MCP at scale already know: the protocol has real gaps in auth, observability, gateway patterns, and configuration portability. Here's what's on the table and why it matters.

Azure Entra ID doesn't support deep nested group expansion over SCIM, which catches a lot of teams off guard when setting up Directory Sync. This post explains exactly why that limitation exists, three practical patterns to work around it, and how the situation compares to Google Workspace.

Add production-ready authentication to your FastAPI server in under an hour.

Use AI coding agents and WorkOS Skills to generate production-ready flows in your framework, language, and design system.

A practical guide for developers working with cross-origin requests. Every frustrating console message, and the headers that fix them.