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POST
Compare a new selfie against the original selfie from an approved verification session. Ideal for step-up authentication, login verification, or high-value transaction confirmation.

Authenticate

string
required
The ID of an approved verification session to compare against.
file
required
New selfie image. Accepted: jpg, jpeg, png. Max: 10 MB.
number
Minimum similarity score to consider a match (50–100). Default: 80.
object
Optional device metadata (model, OS, IP).

Get Result

Result Values

Processing is asynchronous. Poll GET /auth/biometric/{id} or subscribe to the biometric.completed webhook event.