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YCS26· AI· Devtools

Rindler

The IDE for Tokenmaxxers

ActiveChecked 20h ago
Batch
S26
Status, per YC
Active
Team size
2
HQ
Boston, MA
In S26231 companies, 88% AI

Founders

  • Michael SerranoFounder/CEO
  • Arthur De Los SantosFounder/CTO

Same space

About Rindler

We build Maxxwell, a desktop app for people who run several coding agents at once. Past two or three sessions, you become the bottleneck. Every session asks you something, most of it small, and you spend the day answering instead of deciding. It is also hard to tell which sessions are making progress, which are stuck on something trivial, and which have quietly started building the wrong thing. Maxxwell puts every session in one window and marks each one working, idle, or waiting on you. On top of that sits an orchestrator, a real coding-agent session of its own that reads the others and reports back. You talk to it instead of to twelve terminals. It tells you what landed, what it decided for you, and what actually needs your call. Every worker is your own tool, unmodified. Claude Code, Codex and Cursor Agent run in real terminal sessions you can attach to and take over at any point

Boston, MA, USA

Rindler: questions

Which YC batch was Rindler in?

Rindler was in Y Combinator's Summer 2026 batch (S26).

Is Rindler still active?

Y Combinator lists Rindler as active.

Who founded Rindler?

Rindler's founders, as listed on its YC page: Michael Serrano (Founder/CEO), Arthur De Los Santos (Founder/CTO).

Where is Rindler based?

Rindler lists Boston, MA, USA as its location on YC's directory.

Not affiliated with Y Combinator. From YC's public directory. Logos via logo.dev; trademarks belong to their owners.

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