ID Analyzer Biometric API

openapi: 3.2.0
info:
  title: ID Analyzer Scanner Account Biometric API
  description: REST API for scanning and performing OCR on government-issued identity documents including passports, driver licenses, and national ID cards from 190+ countries. Extracts structured data fields, performs anti-forgery analysis with 20+ fraud detection models, and validates MRZ codes, holograms, and watermarks. Supports full KYC scan with biometric face verification, quick OCR scan, and very-quick OCR scan variants.
  version: '2.0'
  contact:
    name: ID Analyzer Support
    url: https://www.idanalyzer.com/contact-us
    email: support@idanalyzer.com
  termsOfService: https://www.idanalyzer.com/en/terms-of-service
  license:
    name: Proprietary
    url: https://www.idanalyzer.com
servers:
- url: https://api2.idanalyzer.com
  description: US Region
- url: https://api2-eu.idanalyzer.com
  description: EU Region
security:
- ApiKeyHeader: []
tags:
- name: Biometric
  description: Face matching and liveness detection
paths:
  /face:
    post:
      tags:
      - Biometric
      operationId: verifyFace
      summary: 1:1 face verification
      description: Perform 1:1 face verification using a selfie photo or video against a reference face image (e.g. the photo on an ID document). Includes passive liveness detection to prevent spoofing attacks.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/FaceVerifyRequest'
      responses:
        '200':
          description: Face verification result with match score and liveness status
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BiometricResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /liveness:
    post:
      tags:
      - Biometric
      operationId: verifyLiveness
      summary: Standalone liveness check
      description: Perform a standalone liveness check on a selfie photo or video without comparing to a reference image. Detects presentation attacks including photos, videos, masks, and deepfakes.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/LivenessRequest'
      responses:
        '200':
          description: Liveness check result
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BiometricResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    LivenessRequest:
      type: object
      required:
      - profile
      properties:
        face:
          type: string
          description: Selfie face photo (file path, base64, URL, or cache reference)
        faceVideo:
          type: string
          description: Selfie face video (file path, base64, or URL). Used if face is empty.
        profile:
          type: string
          description: KYC Profile ID or preset profile name
        profileOverride:
          type: object
          description: Per-request overrides applied on top of the specified profile
          additionalProperties: true
        customData:
          type: string
          description: Arbitrary string to store alongside the transaction
    ErrorResponse:
      type: object
      properties:
        error:
          $ref: '#/components/schemas/ErrorObject'
    ErrorObject:
      type: object
      properties:
        code:
          type: integer
          description: Error code
        message:
          type: string
          description: Human-readable error message
    FaceVerifyRequest:
      type: object
      required:
      - reference
      - profile
      properties:
        reference:
          type: string
          description: Reference face image (ID document photo, file path, base64, URL, or cache ref)
        face:
          type: string
          description: Selfie face photo (file path, base64, URL, or cache reference)
        faceVideo:
          type: string
          description: Selfie face video (file path, base64, or URL). Used if face is empty.
        profile:
          type: string
          description: KYC Profile ID or preset profile name
        profileOverride:
          type: object
          description: Per-request overrides applied on top of the specified profile
          additionalProperties: true
        customData:
          type: string
          description: Arbitrary string to store alongside the transaction
    BiometricResponse:
      type: object
      properties:
        decision:
          type: string
          enum:
          - accept
          - review
          - reject
          description: Biometric verification decision
        transactionId:
          type: string
          description: Unique transaction identifier
        confidence:
          type: number
          description: Face match confidence score (0-1)
        liveness:
          type: object
          description: Liveness check result
          properties:
            decision:
              type: string
            confidence:
              type: number
        error:
          $ref: '#/components/schemas/ErrorObject'
  responses:
    BadRequest:
      description: Bad request - invalid parameters
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    Unauthorized:
      description: Unauthorized - invalid or missing API key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  securitySchemes:
    ApiKeyHeader:
      type: apiKey
      in: header
      name: X-Api-Key
      description: API key obtained from portal2.idanalyzer.com