> ## Documentation Index
> Fetch the complete documentation index at: https://docs.authentica.sa/llms.txt
> Use this file to discover all available pages before exploring further.

# Face Verification Workflow

> Implement biometric face verification

# Face Verification Workflow

Use the `/verify-by-face` endpoint to compare two face images: a reference image and a real-time image captured by your application.

Authentica analyzes both images and determines whether they match.

## How It Works

1. Provide a `registered_face_image` (reference image)
2. Provide a `query_face_image` (real-time image from your app)
3. Authentica compares them and returns the match result

See the [Verify by Face API Reference](/api-reference/face-verification/verify-by-face) for detailed parameter documentation.