You are the password.

Spend three minutes inside the demo. We'll capture your typing, mouse, scroll, focus, and (optionally) gaze rhythm, build a live brainprint, and let you watch GrayPass verify and authorize you in real time as you work.

1Setup
2Enroll
3Work
4Authorize

Pick your signals

Four signals always work without permissions. Eye tracking is optional and adds a strong fifth signal, but needs your camera.

Keystroke, pointer, scroll, focus Always on. 46 features summarized on your device.
Eye tracking optional Asks for camera. Frames stay local. Adds 8 features (saccades, blinks, scanpath).
Help train the model opt-in Donate this anonymized session's 54-D vectors so we can improve scoring. We never see raw input - only the same vectors the live engine sees. Toggle off anytime.

Demo runs against the real GrayPass backend. A test key is issued automatically.

enrollment → follow the prompt below

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brainprint forming

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collecting samples
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pointer0
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gaze off--
monitoring live backend → work in the browser, then open a new tab below
🔒 inbox.example.com verified

Open another tab

GrayPass mints a signed token if your live trust is high enough. No password, no MFA. Watch the new tab open, or watch step-up kick in if you're being suspicious.

Try an attack

Inject suspicious behavior. Watch the trust score collapse and authorization start failing.

live trust

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warming
keystroke0
pointer0
scroll0
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gaze off--

activity

Cross-device

Take your brainprint to your phone

You just proved who you are on this laptop. Tandem hands that verified identity to your phone with one QR scan, then keeps you authenticated as you move between apps - stepping up to Face ID only when the risk actually calls for it.

Try the Tandem demo
GrayPass for Business

Run this on your own app

Everything you just experienced - silent enrollment, continuous scoring, block & MFA handoff - drops into your product with one <script> tag. Buy a session pack, paste the snippet, and you're live. $0.70 / session, never expires.

Deploy GrayPass