KBY-AI

You feed KBY-AI a face image, an ID document or a camera frame through its SDK, and you get back a verification result your own app can act on.

KBY-AI is a set of identity verification SDKs for developers, covering face recognition, image recognition, OCR and document extraction.

Everything can run fully offline and on-device, so the data does not have to leave the machine.

The company sells on-premises solutions with perpetual licenses rather than a hosted API you rent by the call.

That makes sense for teams with privacy or deployment constraints.

The SDKs work across platforms and in several programming languages, and the APIs are described as simple and clean.

Updates ship regularly, and support comes through messenger, with free support included.

KBY-AI describes its facial recognition algorithm as globally top-ranked, a claim you should test against your own data before committing.

Expect to bring some technical skill to the integration, since this is a developer toolkit and not a finished app.

Pricing is listed as free, though terms for commercial licenses are likely to need a conversation with the company.