Skip to main content

One year of Clerk free for YC W26

Alumni batches get one year at 50% off. Eligibility expires after raising $5 million.

YC-only benefits

Pro plan and add-ons included, at any scale

Don’t worry, there’s no catch. YC startups make great long-term customers, so we’re happy to foot the bill for a year. *
* SMS fees are charged at cost, or you can bring your own provider.

Priority support

Ship faster with 1:1 Slack support and direct access to the Clerk founders and support team.

Concierge onboarding

Fast-track onboarding sessions and hands-on support if you are migrating from another auth provider.

Founder office hours

Our co-founder, Colin, is based in San Francisco and is happy to meet in person during your batch.

Apply now

Complete the fields below and we'll be in touch.

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