YC Summer 2026 (S26) company

Rindler

The translation layer between AI agents and the web

About Rindler

Rindler turns any website, including sites without APIs, into a deterministic API that AI agents can reliably use. It handles logins, 2FA, and bot detection, giving agents clean structured data and dependable actions instead of raw HTML, with robust maintenance when sites change. Rindler is agent-agnostic and built on the open MCP standard, so it works with any agent. For operators: get your team out of portals and back to the work that matters. For agent builders: let your agents act on the real web quickly, cheaply, and reliably on every run.

Public traction evidence

Each signal links to the public source used for attribution.

  1. LinkedIn

    Rindler Launch YC post

    Michael Serrano wrote that Rindler (YC S26) launched on Launch YC.

  2. X

    We got into @ycombinator! We: > Noticed AI can't do things for you on the web (major problem) > Turned down big tech > Locked in on this ...

    We got into @ycombinator! We: > Noticed AI can't do things for you on the web (major problem) > Turned down big tech > Locked in on this problem > Applied to YC > Graduated from MIT @RindlerAI makes every website work for any agent If you're building w/ agents, we'd love to chat!

  3. YouTube

    Rindler Launch

    Embedded in the official Rindler YC company page.

  4. X

    What website has the worst UI?

    What website has the worst UI?

  5. X

    Fable 5 is out!

    Fable 5 is out!

  6. X

    Is it just me or is Claude weekly usage much worse than before? I don't understand where the 50% boost is coming from.

    Is it just me or is Claude weekly usage much worse than before? I don't understand where the 50% boost is coming from.

  7. X

    @ycombinator @RindlerAI @m_y_serrano We just launched on YC, appreciate any support here: https://www.ycombinator.com/launches/RHN-rindl...

    @ycombinator @RindlerAI @m_y_serrano We just launched on YC, appreciate any support here: https://www.ycombinator.com/launches/RHN-rindler-turn-any-website-into-an-api-for-ai-agents

  8. X

    I don't think many people realize how powerful claude can be with /goal Tried asking it a weird prompt to see what it would do: /goal m...

    I don't think many people realize how powerful claude can be with /goal Tried asking it a weird prompt to see what it would do: /goal make a baked smoothie Initially, it correctly reasoned that smoothies are blended, not baked, and made some ascii art and ingredients for the...