Stop proving you're human. Start playing like one.
Turn the web's most annoying moment into something actually fun. Pick from a growing arcade of quick games, play a few seconds, and you're in. Easy for humans, unwinnable for bots.
Caputchin is a privacy-first, game-based CAPTCHA. Visitors play a short game to prove they're human, in any of 11 languages, and we store nothing about them: no cookies, no fingerprinting, no tracking.
Booting the widget...
Booting the widget...
The CAPTCHA frontier AI can't beat.
OCR puzzles, image grids, invisible risk scores: frontier models clear them in milliseconds. Caputchin is the one challenge they still can't, and the one humans are glad to see. Layered gates and server-side anti-cheat shut the door on automation, while a fast, sensory game makes split-second reaction the bar.
- Drowns in real-time sensory input
- Round-trip latency wrecks split-second timing
- Replay and signed scoring kill automation
- Reads the whole scene at a glance
- Reacts in a heartbeat, no thinking required
- Actually has fun doing it
Layered by design
Three independent gates stack defense in depth. Solve one and the next still stands. No single model clears them all.
Anti-cheat at the core
Signed tickets, deterministic replay, and scoring that lives on our servers, never the client. Automated shortcuts get nowhere.
Too fast for machines
Loads of sensory input and reactions measured in milliseconds. The workload frontier models choke on, and the exact thing humans find fun.
Bots burn compute and lose. People play for a few seconds and win.
We changed what a CAPTCHA is.
It used to mean surveillance dressed up as a test. We made verification that proves you're human without learning a thing about you.
A confusing, invasive ordeal.
- Find the fire hydrant. Then the bus. Then the boat.
- Your solving labeled to train their AI models.
- Your fingerprint, harvested as proof.
- Cookies set on your visitors' browsers.
- Visitor IP and User-Agent logged on every check.
- A risk score you can't see, can't appeal.
A game. That's the whole pitch.
- A tiny game humans actually enjoy.
- Your play trains no AI, and is forgotten once verified.
- Zero fingerprints. None collected, none stored.
- Zero cookies on the visitor's browser.
- No IP, no UA, no geo forwarded past our edge.
- Pass or fail. No invisible score.
Six areas of capability.
Verification is the core. The rest is what makes it ship-able at every stage from hobby site to enterprise rollout.
- Explore
Verification
Three gates. Bots hit a wall, humans glide through.
- Explore
Game ecosystem
Open catalog of community games. SDK to write your own.
- Explore
Configuration
Dashboard, site keys, per-site defensive controls.
- Explore
Automation
REST API, MCP server, Terraform provider, access tokens.
- Explore
Analytics
Aggregate counters, session detail, audit logs at the top.
- Explore
Troops
Share site keys without sharing the keys. One seat pool.
Permissive, open, minimal.
One posture, seen from three sides. We give you the most control we can, show you exactly how it works, and ask for the least we can in return.
Permissive
Bend the widget however you like, on any plan including free Solo. Paid tiers buy the managed dashboard and the reach, never the raw capability.
Open
The widget and SDK are open source, Apache-2.0, developed in the open on GitHub. Read every line, fork it, send a pull request.
Minimal
No visitor profile, no fingerprint, no tracking. The architecture cannot collect it, by design, not by policy.
Humans win. Bots fail. Nobody gets fingerprinted.
Ship your first challenge today. Solo is free forever, upgrade from the dashboard when a feature you need lives on a higher tier.
Start free