Clerk
Managed authentication and user managementFreemium· verified Oct 2026
A hosted authentication service with client/server SDKs, prebuilt sign-in and account components, and organization membership, roles, and permissions. Your application verifies sessions and enforces access to its own data.
Official siteReach for it when
- Teams that want hosted auth and ready-made account interfaces
- B2B applications that can use Clerk's organization model
Worth knowing
Free allowances, paid features, and organization usage limits depend on the current plan. The hosted service is distinct from its SDK licenses; check pricing and migration requirements before adopting it.