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

# Participant Session State



## OpenAPI

````yaml /openapi.json get /v1/participant/session
openapi: 3.1.0
info:
  description: Are we on the same page?
  title: Synapse
  version: 0.1.0
servers: []
security: []
paths:
  /v1/participant/session:
    get:
      tags:
        - v1-platform
      summary: Participant Session State
      operationId: participant_session_state_v1_participant_session_get
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ParticipantSessionState'
          description: Successful Response
        '401':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
          description: Authentication required
        '410':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
          description: API error
        '500':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
          description: Internal server error
      security:
        - ParticipantToken: []
components:
  schemas:
    ParticipantSessionState:
      properties:
        branding:
          $ref: '#/components/schemas/ExperienceBranding'
        consent:
          $ref: '#/components/schemas/ConsentRequirement'
        consented:
          title: Consented
          type: boolean
        evaluation_id:
          format: uuid
          title: Evaluation Id
          type: string
        expires_at:
          format: date-time
          title: Expires At
          type: string
        last_seen_at:
          format: date-time
          title: Last Seen At
          type: string
        locale:
          title: Locale
          type: string
        renderer_mode:
          enum:
            - hosted
            - embedded
            - hosted_or_embedded
          title: Renderer Mode
          type: string
        session_id:
          format: uuid
          title: Session Id
          type: string
        status:
          enum:
            - active
            - completed
            - revoked
            - expired
          title: Status
          type: string
        voice_processing_consent:
          $ref: '#/components/schemas/ConsentRequirement'
        voice_processing_consented:
          title: Voice Processing Consented
          type: boolean
      required:
        - session_id
        - evaluation_id
        - status
        - locale
        - expires_at
        - last_seen_at
        - consent
        - consented
        - voice_processing_consent
        - voice_processing_consented
        - renderer_mode
        - branding
      title: ParticipantSessionState
      type: object
    ApiErrorResponse:
      additionalProperties: false
      properties:
        detail:
          anyOf:
            - $ref: '#/components/schemas/ErrorDetail'
            - type: string
            - items: {}
              type: array
            - additionalProperties: true
              type: object
          title: Detail
      required:
        - detail
      title: ApiErrorResponse
      type: object
    ExperienceBranding:
      additionalProperties: false
      description: Participant-safe branding pinned by an immutable experience version.
      properties:
        display_name:
          anyOf:
            - maxLength: 120
              minLength: 1
              type: string
            - type: 'null'
          title: Display Name
        primary_color:
          anyOf:
            - type: string
            - type: 'null'
          title: Primary Color
      title: ExperienceBranding
      type: object
    ConsentRequirement:
      properties:
        notice_text:
          maxLength: 4000
          minLength: 1
          title: Notice Text
          type: string
        notice_version:
          maxLength: 64
          minLength: 1
          pattern: ^[A-Za-z0-9](?:[A-Za-z0-9_.-]{0,62}[A-Za-z0-9])?$
          title: Notice Version
          type: string
        purpose:
          maxLength: 64
          minLength: 1
          pattern: ^[A-Za-z0-9](?:[A-Za-z0-9_.-]{0,62}[A-Za-z0-9])?$
          title: Purpose
          type: string
      required:
        - purpose
        - notice_version
        - notice_text
      title: ConsentRequirement
      type: object
    ErrorDetail:
      additionalProperties: false
      description: Stable structured detail returned by versioned API errors.
      properties:
        code:
          title: Code
          type: string
        context:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Context
        message:
          title: Message
          type: string
        request_id:
          anyOf:
            - type: string
            - type: 'null'
          title: Request Id
      required:
        - code
        - message
      title: ErrorDetail
      type: object
  securitySchemes:
    ParticipantToken:
      bearerFormat: spt_...
      description: Short-lived token bound to one participant session.
      scheme: bearer
      type: http

````