Verify User Identity with a Face Comparison API

How do you know the person signing up for your service is who they claim to be? Email verification confirms someone controls an email address, but it says nothing about their real identity. A face comparison API closes this gap by comparing a live selfie against a reference photo — whether that's a government-issued ID, an existing profile picture, or a previously enrolled face. In this guide, I'll show how to implement identity verification for KYC onboarding , profile verification , and fraud prevention using a face comparison endpoint. How It Works The /compare-faces endpoint takes two images — a source (reference photo) and a target (photo to verify) — and returns whether they contain the same person: // Match found { "statusCode" : 200 , "body" : { "matchedFaces" : [ { "boundingBox" : { ... }, "landmarks" : { ... } } ], "unmatchedFaces" : [] } } // No match { "statusCode" : 200 , "body" : { "matchedFaces" : [], "unmatchedFaces" : [ { "boundingBox" : { ... }, "landmarks" : { ... }