Most biometric verification tools are either expensive, require a hardware SDK, or lock you into a proprietary platform. FaceID API is a free-tier REST API that adds face liveness detection to any web or mobile app. Here's exactly how it works.

Source: [Dev.to](https://dev.to/indiesolovibe/add-face-liveness-detection-to-any-app-in-10-lines-of-code-free-tier-available-1h92)

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