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Every Pet Deserves an Unhackable Identity

CritterKey captures unique biometric markers — nose prints, facial geometry — to create tamper-proof pet identities that work across vets, shelters, and smart-home devices.

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How it works

Biometric registration in under 2 minutes

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Capture Biometrics

Upload a photo of your pet's nose print or face. Our AI extracts unique pattern markers.

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Link to Your Pet

Add species, breed, microchip ID, and your contact info. One profile, permanently linked.

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Instant Verification

Shelters, vets, and smart doors can verify your pet's identity in seconds — no tags needed.

Why biometrics beat tags & chips

Can't be lost or stolen — biometrics live in the cloud, permanently attached to your pet

Unforgeable — each pet's nose print is unique, like a human fingerprint

Works with smart devices — integrate with SureFlap, Litter-Robot, or any biometric door

Start protecting your pets today

Free to register. No account required.