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

# Post apiingestbiometrickeepalive



## OpenAPI

````yaml /api-reference/openapi.json post /api/ingest/biometric/keepalive
openapi: 3.1.0
info:
  title: ontime API
  description: APIs for ontime.v2
  version: 1.0.0
servers:
  - url: https://app.ontime.hosai.app
    description: Production
security:
  - apiKey: []
paths:
  /api/ingest/biometric/keepalive:
    post:
      operationId: postApiIngestBiometricKeepalive
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                serial:
                  type: string
                  minLength: 1
                deviceUid:
                  anyOf:
                    - type: string
                    - type: 'null'
                terminalType:
                  type: string
                  minLength: 1
                terminalId:
                  type: integer
                  minimum: -9007199254740991
                  maximum: 9007199254740991
                transId:
                  type: integer
                  minimum: -9007199254740991
                  maximum: 9007199254740991
              required:
                - serial
                - terminalType
                - terminalId
                - transId
      responses:
        '200':
          description: Success
components:
  securitySchemes:
    apiKey:
      type: http
      scheme: bearer
      bearerFormat: ont_ API key
      description: >-
        Issue keys in Settings → API. Send them as `Authorization: Bearer ont_…`
        (an `X-Api-Key: ont_…` header is also accepted). Session-cookie routes
        are used by the OnTime web apps and are shown for completeness.

````