Skip to main content

Clerk for Startups

Start with user management that scales

Clerk was built for founders like you to focus on your business, not authentication.

You always get 10,000 monthly active users and 100 monthly active organizations free with our developer-first pricing. Clerk Pro unlocks SMS codes, allowlist and blocklists, RBAC, custom session duration, device tracking and revocation, and more.

Apply to get Clerk Pro features at a discount for your early-stage startup. Your team is eligible up to 1 year after launch with up to $5 million in venture funding.

Top YC startups build with Clerk

  • Clerk checks all the boxes for us: a world class developer experience, elegant user interface, and powerful infrastructure primitives. We chose Clerk from day 1 and have been able to scale usage seamlessly.

    Name
    Catherine Jue
    Role
    Co-founder & CEO
    Company
    Kernel, YC S25
    Additional Info
    Raised $22m from Accel

  • Clerk let us ship secure, multi-tenant auth in our Next.js app fast-route protection, organization switching, and server-side auth() checks just work. Webhooks keep our user and organization data in sync, so we can focus on building Outlit instead of auth plumbing.

    Name
    Leo Paz
    Role
    Co-founder
    Company
    Outlit AI, YC W25

  • Quality and consistency in design is everything to us - Clerk allowed us to go live immediately, while also allowing us to follow on with tailor made auth components using the same SDK. Release now, customize later.

    Name
    Luke Shiels
    Role
    Founder & CEO
    Company
    Interfere, YC S25
    Additional Info
    Raised $5m from Vercel, Designer fund

  • Integrating with Clerk was seamless and the Slack support is superfast. After finding a bug, we got a reply almost immediately and put up a bug fix 20 minutes after we brought up the issue!

    Name
    Miguel Toledo
    Role
    Co-founder & CTO
    Company
    Flex, YC S23
    Additional Info
    Raised $15m from First Round, Core VC

  • Clerk took the pain out of auth for us. Multi-tenant workflows and SSO were surprisingly easy to implement, customization was flexible enough to match our product, and onboarding just worked. It removed complexity we would have otherwise had to build ourselves.

    Name
    Kevan Dodhia
    Role
    Co-Founder & CTO
    Company
    Alter, YC S25

  • The dashboard is a superpower - we can see organizations and users in one place, inspect connected devices, and impersonation is great for customer support and onboarding.

    Name
    Daniil Bekirov
    Role
    CEO
    Company
    Sparkles, YC W26

  • Building out MFA, SAML, and phone number authentication with Clerk was super easy. I had a working MVP in just a few hours. Plus, Clerk × Cursor works really smoothly, which was a nice bonus.

    Name
    Sarman Aulakh
    Role
    CTO
    Company
    Chasi, YC W26