> For the complete documentation index, see [llms.txt](https://docs.vida.id/identity-stack/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vida.id/identity-stack/authentication/authentication-factors/biometric-device-selfie-id/integration-methods/face-match-api.md).

# Face Match API

VIDA’s FaceMatch APIs enable secure biometric authentication by comparing a user’s selfie against a trusted reference image, such as one captured during KYC or stored as a template. This method provides a strong layer of identity verification for scenarios where visual confirmation of the user is essential such as login, high-risk transactions, or account recovery.

FaceMatch uses advanced face-matching algorithms to verify identity without storing biometric data on the client side. Partners can initiate the process using a reference image (via `template_url`) or by referencing a completed KYC (`kyc_event_id`). The user then submits a selfie, which is validated securely against the template on VIDA’s server.

By leveraging passive liveness detection and template comparison, FaceMatch minimizes fraud risks such as photo spoofing or replay attacks, making it a secure and user-friendly alternative to passwords or OTPs.