openapi: 3.2.0
info:
  version: 2.0.0
  x-latency-category: responsive
  x-endpoint-cost: light
  title: Telnyx Meeting Session Data API
  description: SIP trunking, SMS, MMS, Call Control and Telephony Data Services.
  contact:
    email: support@telnyx.com
servers:
- url: https://api.telnyx.com/v2
  description: Version 2.0.0 of the Telnyx API
security:
- bearerAuth: []
tags:
- name: Meeting Session Data
  description: Read lifecycle events, transcript segments, and recordings for a meeting session.
paths:
  /meeting_sessions/{id}/events:
    get:
      operationId: listMeetingSessionEvents
      tags:
      - Meeting Session Data
      summary: List meeting session events
      description: Returns stored events ordered by ascending `seq`. To continue, pass the last returned item's `seq` as `after`. An empty page means no later stored events existed at read time; this operation returns no separate next-page cursor. Default `limit` is 100 and maximum is 1,000.
      parameters:
      - $ref: '#/components/parameters/MeetingSessionId'
      - $ref: '#/components/parameters/After'
      - $ref: '#/components/parameters/Limit'
      responses:
        '200':
          description: Successful response with a list of meeting session events.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MeetingSessionEventListResponse'
              example:
                data:
                - seq: 12
                  type: session.status_changed
                  payload:
                    status: active
                    previous_status: waiting_for_admission
                  occurred_at: '2026-06-16T09:00:05Z'
        '400':
          $ref: '#/components/responses/meeting-sessions_BadRequest'
        '401':
          $ref: '#/components/responses/meeting-sessions_Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/meeting-sessions_NotFound'
        '429':
          $ref: '#/components/responses/TooManyRequests'
        '500':
          $ref: '#/components/responses/meeting-sessions_InternalServerError'
        '503':
          $ref: '#/components/responses/MeetingReadAuthUnavailable'
  /meeting_sessions/{id}/recording_media:
    delete:
      operationId: deleteMeetingSessionRecordingMedia
      tags:
      - Meeting Session Data
      summary: Delete meeting session recording media
      description: Irreversibly requests deletion of the aggregate recording media for the session. The operation retains the Telnyx-local Meeting session, transcript segments, events, artifacts, and usage records. It is separate from `DELETE /meeting_sessions/{id}`, which stops or cancels participation without deleting the persisted session. A missing/foreign session returns 404; provider deletion failures return 502.
      security:
      - bearerAuth: []
      parameters:
      - $ref: '#/components/parameters/MeetingSessionId'
      responses:
        '202':
          description: The irreversible recording-media deletion request was accepted, or a deletion is already in progress.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MeetingSessionRecordingMediaDeletionResponse'
        '401':
          $ref: '#/components/responses/meeting-sessions_Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/RecordingMediaResourceNotFound'
        '409':
          $ref: '#/components/responses/RecordingMediaInvalidState'
        '422':
          $ref: '#/components/responses/RecordingMediaUnsupportedCapability'
        '429':
          $ref: '#/components/responses/TooManyRequests'
        '500':
          $ref: '#/components/responses/meeting-sessions_InternalServerError'
        '502':
          $ref: '#/components/responses/RecordingMediaProviderError'
        '503':
          $ref: '#/components/responses/RecordingMediaAuthenticationUnavailable'
  /meeting_sessions/{id}/recordings:
    get:
      operationId: listMeetingSessionRecordings
      tags:
      - Meeting Session Data
      summary: List meeting session recordings
      description: Returns recordings for a meeting session.
      parameters:
      - $ref: '#/components/parameters/MeetingSessionId'
      responses:
        '200':
          description: Successful response with a list of meeting session recordings.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MeetingSessionRecordingListResponse'
              example:
                data:
                - type: video_mixed
                  url: https://cdn.telnyx.com/recordings/mtgsess_9b2f.../video_mixed.mp4
                  expires_at: '2026-06-17T09:00:42Z'
        '401':
          $ref: '#/components/responses/meeting-sessions_Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/meeting-sessions_NotFound'
        '429':
          $ref: '#/components/responses/TooManyRequests'
        '500':
          $ref: '#/components/responses/meeting-sessions_InternalServerError'
        '502':
          $ref: '#/components/responses/MeetingRecordingLookupProviderError'
        '503':
          $ref: '#/components/responses/MeetingReadAuthUnavailable'
  /meeting_sessions/{id}/transcript:
    get:
      operationId: listMeetingSessionTranscript
      tags:
      - Meeting Session Data
      summary: List meeting session transcript
      description: 'Returns transcript segments ordered by ascending `seq`. Default `limit` is 100 and maximum is 1,000. Continue with `after=meta.next_after`. A long-poll timeout returns 200 with empty `data` and `meta.next_after: null`; retain the cursor supplied to that request because null is not a replacement cursor.'
      parameters:
      - $ref: '#/components/parameters/MeetingSessionId'
      - $ref: '#/components/parameters/After'
      - $ref: '#/components/parameters/Limit'
      - $ref: '#/components/parameters/WaitSeconds'
      responses:
        '200':
          description: Successful response with transcript segments (may be empty on wait timeout).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TranscriptSegmentListResponse'
        '400':
          $ref: '#/components/responses/meeting-sessions_BadRequest'
        '401':
          $ref: '#/components/responses/meeting-sessions_Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/meeting-sessions_NotFound'
        '429':
          $ref: '#/components/responses/TooManyRequests'
        '500':
          $ref: '#/components/responses/meeting-sessions_InternalServerError'
        '503':
          $ref: '#/components/responses/MeetingReadAuthUnavailable'
components:
  parameters:
    WaitSeconds:
      name: wait_seconds
      in: query
      required: false
      description: Long-poll duration in seconds. The server holds the connection open for up to this many seconds, waiting for new or updated results before returning an empty response. Set to 0 for an immediate response.
      schema:
        type: integer
        minimum: 0
        maximum: 25
        default: 0
    After:
      name: after
      in: query
      required: false
      description: Return results with a cursor position after this value.
      schema:
        type: integer
        minimum: 0
        default: 0
    MeetingSessionId:
      name: id
      in: path
      required: true
      description: Unique identifier for the meeting session.
      schema:
        type: string
        examples:
        - mtgsess_a1b2c3d4-e5f6-7890-abcd-ef1234567890
    Limit:
      name: limit
      in: query
      required: false
      description: Maximum number of results to return per page.
      schema:
        type: integer
        minimum: 1
        maximum: 1000
        default: 100
  responses:
    meeting-sessions_BadRequest:
      description: Bad Request
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/meeting-sessions_ErrorResponse'
          example:
            error:
              code: invalid_request
              message: request is invalid
    MeetingRecordingLookupProviderError:
      description: The provider failed to return recording entries.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/meeting-sessions_ErrorResponse'
          example:
            error:
              code: provider_error
              message: failed to fetch recordings from provider
    RecordingMediaInvalidState:
      description: Provider recording media cannot be deleted while the meeting is in progress.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/meeting-sessions_ErrorResponse'
          example:
            error:
              code: invalid_state
              message: provider recording media cannot be deleted while the meeting is in progress
    RecordingMediaUnsupportedCapability:
      description: The session's provider does not support recording-media deletion, or does not match the configured provider.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/meeting-sessions_ErrorResponse'
          example:
            error:
              code: unsupported_capability
              message: provider recording-media deletion is not supported
    TooManyRequests:
      description: Authentication is temporarily overloaded. Retry after the number of seconds in `Retry-After`.
      headers:
        Retry-After:
          required: true
          description: Seconds to wait before retrying.
          schema:
            type: integer
            minimum: 1
            maximum: 5
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/meeting-sessions_ErrorResponse'
          example:
            error:
              code: auth_overloaded
              message: authentication temporarily overloaded
    meeting-sessions_NotFound:
      description: Not Found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/meeting-sessions_ErrorResponse'
          example:
            error:
              code: not_found
              message: meeting session not found
    meeting-sessions_InternalServerError:
      description: Internal Server Error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/meeting-sessions_ErrorResponse'
          example:
            error:
              code: internal_error
              message: internal server error
    RecordingMediaAuthenticationUnavailable:
      description: The authentication service is unavailable.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/meeting-sessions_ErrorResponse'
          example:
            error:
              code: auth_unavailable
              message: authentication service is unavailable
    meeting-sessions_Unauthorized:
      description: 'Unauthorized. On api.telnyx.com, authentication is enforced by the API gateway before the request reaches the Meeting service, so a missing or invalid API key returns the standard Telnyx error envelope (`{"errors": [{"code": "10009", ...}]}`) rather than the single-`error` shape below.'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/meeting-sessions_ErrorResponse'
          example:
            error:
              code: unauthorized
              message: invalid or missing credentials
    RecordingMediaProviderError:
      description: The provider request failed and the recording-media deletion outcome is unknown.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/meeting-sessions_ErrorResponse'
          example:
            error:
              code: provider_error
              message: recording-media deletion outcome is unknown
    RecordingMediaResourceNotFound:
      description: The meeting session does not exist or belongs to another account.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/meeting-sessions_ErrorResponse'
          example:
            error:
              code: not_found
              message: meeting session not found
    MeetingReadAuthUnavailable:
      description: Authentication is temporarily unavailable.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/meeting-sessions_ErrorResponse'
          example:
            error:
              code: auth_unavailable
              message: authentication service unavailable
    Forbidden:
      description: The authenticated credential is not permitted to perform this operation.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/meeting-sessions_ErrorResponse'
          example:
            error:
              code: forbidden
              message: credential is not permitted
  schemas:
    MeetingSessionRecording:
      type: object
      additionalProperties: false
      required:
      - type
      - url
      - expires_at
      properties:
        type:
          type: string
        url:
          type: string
          format: uri
          description: Current provider download URL. The API does not guarantee URL lifetime or refresh behavior.
        expires_at:
          type:
          - string
          - 'null'
          description: Expiry timestamp when available, or null. Currently returns null.
    MeetingSessionEventListResponse:
      type: object
      additionalProperties: false
      required:
      - data
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/MeetingSessionEvent'
    MeetingSessionEvent:
      type: object
      additionalProperties: false
      required:
      - seq
      - type
      - payload
      - occurred_at
      properties:
        seq:
          type: integer
        type:
          type: string
        payload:
          type: object
          additionalProperties: true
        occurred_at:
          type: string
          format: date-time
    TranscriptSegment:
      type: object
      additionalProperties: false
      required:
      - seq
      - text
      - confidence
      - speaker_label
      - relative_ts
      - occurred_at
      properties:
        seq:
          type: integer
        text:
          type: string
        confidence:
          type:
          - number
          - 'null'
          minimum: 0
          maximum: 1
        speaker_label:
          type:
          - string
          - 'null'
        relative_ts:
          type:
          - number
          - 'null'
        occurred_at:
          type: string
          format: date-time
      example:
        seq: 1
        text: Welcome to the project kickoff.
        confidence: 0.98
        speaker_label: Speaker 1
        relative_ts: 12.5
        occurred_at: '2025-01-15T10:00:12Z'
    meeting-sessions_ErrorResponse:
      type: object
      additionalProperties: false
      required:
      - error
      properties:
        error:
          type: object
          additionalProperties: false
          required:
          - code
          - message
          properties:
            code:
              type: string
            message:
              type: string
      examples:
      - error:
          code: invalid_request
          message: webhook_url is disabled
      - error:
          code: not_found
          message: meeting session not found
      - error:
          code: unsupported_capability
          message: avatar video is not supported on platform 'unknown'
      - error:
          code: internal_error
          message: internal server error
    MeetingSessionRecordingListResponse:
      type: object
      additionalProperties: false
      required:
      - data
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/MeetingSessionRecording'
    MeetingSessionRecordingMediaDeletionResponse:
      type: object
      additionalProperties: false
      required:
      - data
      properties:
        data:
          type: object
          additionalProperties: false
          required:
          - meeting_session_id
          - provider
          - scope
          - deletion_status
          properties:
            meeting_session_id:
              type: string
              description: The account-scoped Meeting Session identifier.
            provider:
              type: string
              const: telnyx
            scope:
              type: string
              const: provider_recording_media
            deletion_status:
              type: string
              enum:
              - requested
              - already_in_progress
      example:
        data:
          meeting_session_id: mtgsess_a1b2c3d4-e5f6-7890-abcd-ef1234567890
          provider: telnyx
          scope: provider_recording_media
          deletion_status: requested
    TranscriptSegmentListResponse:
      type: object
      additionalProperties: false
      required:
      - data
      - meta
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/TranscriptSegment'
        meta:
          type: object
          additionalProperties: false
          required:
          - next_after
          properties:
            next_after:
              type:
              - integer
              - 'null'
              description: Cursor to pass as `after` on the next request, or null when the response contains no segments.
      example:
        data:
        - seq: 41
          text: let's ship it
          confidence: 0.94
          speaker_label: Ada L.
          relative_ts: 1240.5
          occurred_at: '2026-06-16T09:00:42Z'
        meta:
          next_after: 41
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API key
      description: 'Telnyx API key supplied as `Authorization: Bearer <token>`. In production, auth may be validated by the API gateway and forwarded via Telnyx auth headers.'
    Payment:
      type: apiKey
      in: header
      name: Authorization
      description: 'Machine Payment Protocol credential used on paid retries, sent as `Authorization: Payment ...`. Obtained by paying a challenge returned in the `WWW-Authenticate` header of a 402 response. This is not a Telnyx API key; initial challenge requests use standard bearer authentication instead.'
    agent-memory_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key
    bearerAuth:
      type: http
      scheme: bearer
    branded-calling_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key. Generate one at https://portal.telnyx.com/#/app/api-keys.
    collections_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key. Collections and results are automatically scoped to the authenticated user's organization.
    number-reputation_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key. Generate one at https://portal.telnyx.com/#/app/api-keys.
    oauthClientAuth:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://api.telnyx.com/v2/oauth/token
          scopes:
            admin: Administrative access to Telnyx resources
        authorizationCode:
          authorizationUrl: https://api.telnyx.com/v2/oauth/authorize
          tokenUrl: https://api.telnyx.com/v2/oauth/token
          refreshUrl: https://api.telnyx.com/v2/oauth/token
          scopes:
            admin: Administrative access to Telnyx resources
      description: OAuth 2.0 authentication for Telnyx API and MCP integrations
    outbound-voice-profiles_bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
    pronunciation-dicts_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API v2 key. Obtain from https://portal.telnyx.com
    rcs-registration_bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API key
    stored-payment-transactions_bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
    transcriptions-search_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key. Results are automatically scoped to the authenticated user's organization.
    web-search_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key
x-service-info:
  categories:
  - communication
  - developer-tools
  docs:
    apiReference: https://developers.telnyx.com
    homepage: https://telnyx.com
    llms: https://telnyx.com/llms.txt