TOOTCAT.

TOOTCAT LTD · United Kingdom

We build agents
worth holding.

TOOTCAT is a UK studio crafting curious AI agents — from firmware you can hold in your hand to software that meets you in the cloud. Small, sharp, and built with care.

See what we make Explore QuotaPuter →
Now shipping: QuotaPuter, our pocket-sized AI usage monitor.

What we make

A tool today, an agent tomorrow.

QuotaPuter ships now as a pocket-sized AI usage monitor — and is growing into a hardware agent that schedules your LLM traffic for you.

AI usage monitor Available now

QuotaPuter

A pocket-sized tool that keeps your AI usage in check — live quotas for Claude, Codex, Gemini and more on the M5Stack Cardputer, right on your desk instead of behind a browser tab. It isn’t an agent yet; it’s the groundwork for one.

  • Live quota & usage across multiple LLM providers
  • Encrypted, on-device credential storage
  • Wi-Fi sync with offline caching & auto-refresh
  • Pixel-art UI on a 320×240 handheld display
MIT licensed · open source View on GitHub →
Hardware agent In development

Where it’s headed

Next, QuotaPuter grows from monitor into a true hardware agent — one that schedules your LLM traffic sensibly, keeps watch over how it’s used, and helps you look back and learn from it.

  • Smart scheduling & routing of LLM traffic
  • Always-on usage monitoring & guardrails
  • Retrospective analysis to review & tune your spend
Status: building Get notified →

Vision

Agents shouldn’t live only behind a browser tab. The best ones fit into your day.

We believe the most useful agents are the ones woven quietly into the tools and spaces you already trust — on a desk, in a pocket, ready when you are. TOOTCAT builds small, sharp, delightful agents and gives them a body when they need one.

Small & sharp

Focused tools that do one thing exceptionally well, instead of one thing that does everything poorly.

Private by default

Your credentials and data stay yours. Encrypted on-device, no surprises.

Built to be held

Software and hardware designed together, so an agent can leave the screen when it should.

About

A studio of curiosity.

TOOTCAT LTD is a UK company building all sorts of curious agents. We ship small, stay open where we can, and obsess over the details — from the firmware on a tiny keyboard-computer to the software that will follow.

No hype, no bloat. Just well-made agents that earn a place in your day.

Contact

Let’s build something curious.

Questions, ideas, or just want to follow along as the software agent takes shape? We’d love to hear from you.

Say hello Follow on GitHub