A home for specialized AI tools. Bring your own API key, pay only for what you use — no markup, full models.
THE PROBLEM
You're paying for someone else's margin.
Most AI tools charge $20–40 a month — not for the intelligence, but for the markup on an API you could call yourself. Kapus strips it out.
BRING YOUR KEY
Full models. Zero throttling.
Plug in your own key and tools run on the real model — uncapped, never downgraded. Your key lives in your browser and never touches our servers.
ONE KEY, EVERY TOOL
A kit that keeps growing.
Writing, summarizing, translation today — captions, voice, and PDF next. One key powers all of them.
BUILT FOR THE AGENT ERA
Your tools, callable.
Soon, every Kapus tool runs through one API — for your own apps and agents. Bring your key; we never store it.
NO MARKUP. FULL MODELS.
Start free. Bring your key.
Pay your provider for tokens. Pay us nothing for the markup — because there isn't one.