Anti-spoofing
Reject printed photos, screens, and masks presented to the camera.
Face API
Liveness Detection API.
Tell a real, present person from a photo, screen, or mask before you trust a face.
Endpoint
One call to check that a face is a real, present person.
Send an image, get structured JSON back. The same token, auth, and response shape as every other SIMSIM endpoint.
POST/v1/livenessTell a real, present person from a photo, screen, or mask before you trust a face.
Capabilities
What you can do
Passive checks
Score liveness from a single frame — no awkward gestures required.
KYC-ready
Pair liveness with recognition for onboarding you can defend.
Fast decisions
Return a live/not-live decision in milliseconds.
Ready to build on faces?
Create an account, pick your language, follow the quickstart, and make your first recognition call in minutes.