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

# Liveness - Get Session ID

> Get a liveness session ID.
Requires Bearer token and domain ID.
Use the following URLs depending on your environment:
  - Demo: https://d1.cynopsis.co
  - Production: https://util.cynopsis.co




## OpenAPI

````yaml /openapi/ares_openapi.yaml get /service/liveness-v2/liveness_session
openapi: 3.0.0
info:
  title: Cynopsis CRM OAuth2 Token API
  version: '1.0'
servers:
  - url: https://d1.cynopsis.co
    description: Demo Service API URL
  - url: https://util.cynopsis.co
    description: Production Service API URL
security: []
paths:
  /service/liveness-v2/liveness_session:
    get:
      summary: Liveness - Get Session ID
      description: |
        Get a liveness session ID.
        Requires Bearer token and domain ID.
        Use the following URLs depending on your environment:
          - Demo: https://d1.cynopsis.co
          - Production: https://util.cynopsis.co
      parameters:
        - name: X-Domain-Id
          in: header
          required: true
          schema:
            type: string
          description: Domain ID
      responses:
        '200':
          description: Liveness session ID response
          content:
            application/json:
              schema:
                type: object
                description: Liveness session ID result
        '400':
          description: Invalid request
        '401':
          description: Unauthorized
      security:
        - bearerAuth: []
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT

````