Clerk Authentication Drop-in authentication for modern web apps. Handles login UI, social providers, session management, organizations, and RBAC. Setup (Next.js) Middleware (Route Protection) Server-Side Auth Server Components (App Router) API Routes Server Actions Client-Side Auth Pre-Built Components Organizations (Multi-Tenant) Enable at dashboard.clerk.com → Organizations. Create Organization Invite Members Custom Roles Define at dashboard.clerk.com → Organizations → Roles: Check roles in code: Webhooks Sync Clerk events to your database: Key events: , , , , , , . JWT Templates (API Auth)…