Clerk
User management for developers, with prebuilt sign-up and sign-in, organizations, SSO and billing.
Updated Sep 26, 2026
Overview
Clerk is user management for developers: sign-up and sign-in with prebuilt UI components, multi-tenant organizations, enterprise SSO, subscription billing and machine-to-machine auth. Its Backend API and CLI read and manage an application's users, invitations and waitlist, so new sign-ups can start a growth workflow.
Workflows
Workflows that use Clerk's tools.
Tools
What agents can reach at Clerk.
Invite a userCreates an invitation for an email address and sends the invitation email with a link to sign up.
- Invite a waitlist entry
Sends an invitation to the email address on a waitlist entry so that person can sign up.
- List users
Returns the application's users, newest first, filtered by email, name, organization or sign-up, sign-in and last-active dates.