FreJun Teler Voice / Apps API

openapi: 3.2.0
info:
  title: Teler API Reference Voice / Apps API
  summary: Programmable voice infrastructure for AI agents.
  description: 'The Teler API lets you place and control programmable voice calls, stream live

    audio to AI agents, and observe everything that happens on a call in real time.'
  contact:
    name: Teler support
    email: support@frejun.com
  version: 0.1.0
servers:
- url: https://api.frejun.ai
  description: Production
security:
- ApiKeyAuth: []
tags:
- name: Voice / Apps
  description: Voice apps are the configuration context for calls — they define webhook URLs, flows, and channel limits. Create and manage your voice apps here.
paths:
  /api/v1/voice/apps:
    post:
      tags:
      - Voice / Apps
      summary: Create a voice app
      operationId: create_voice_app
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CallAppCreate'
      responses:
        '201':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CallAppResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationErrorResponse'
    get:
      tags:
      - Voice / Apps
      summary: List voice apps
      operationId: list_voice_apps
      parameters:
      - name: search
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Search
      - name: status
        in: query
        required: false
        schema:
          anyOf:
          - type: array
            items:
              $ref: '#/components/schemas/Status'
          - type: 'null'
          title: Status
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          maximum: 100
          minimum: 1
          default: 50
          title: Limit
      - name: cursor_after
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Cursor After
      - name: cursor_before
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Cursor Before
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CursorPage_CallAppResponse_'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationErrorResponse'
  /api/v1/voice/apps/{voice_app_id}:
    get:
      tags:
      - Voice / Apps
      summary: Retrieve a voice app
      operationId: retrieve_voice_app
      parameters:
      - name: voice_app_id
        in: path
        required: true
        schema:
          type: string
          title: Voice App Id
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CallAppResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationErrorResponse'
    patch:
      tags:
      - Voice / Apps
      summary: Update a voice app
      operationId: update_voice_app
      parameters:
      - name: voice_app_id
        in: path
        required: true
        schema:
          type: string
          title: Voice App Id
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CallAppUpdate'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CallAppResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationErrorResponse'
    delete:
      tags:
      - Voice / Apps
      summary: Delete a voice app
      operationId: delete_voice_app
      parameters:
      - name: voice_app_id
        in: path
        required: true
        schema:
          type: string
          title: Voice App Id
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DefaultResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationErrorResponse'
  /api/v1/voice/apps/{voice_app_id}/virtual-numbers:
    get:
      tags:
      - Voice / Apps
      summary: List virtual numbers for a voice app
      operationId: list_voice_app_virtual_numbers
      parameters:
      - name: voice_app_id
        in: path
        required: true
        schema:
          type: string
          title: Voice App Id
      - name: search
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Search
      - name: location
        in: query
        required: false
        schema:
          anyOf:
          - type: array
            items:
              type: string
          - type: 'null'
          title: Location
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          maximum: 50
          minimum: 1
          default: 10
          title: Limit
      - name: cursor_after
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Cursor After
      - name: cursor_before
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Cursor Before
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CursorPage_VNListResponse_'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationErrorResponse'
components:
  schemas:
    ValidationFieldError:
      properties:
        loc:
          items: {}
          type: array
          title: Loc
          description: Path to the offending field, e.g. `["body", "to_number"]`.
        msg:
          type: string
          title: Msg
          description: Human-readable explanation of the problem.
        type:
          type: string
          title: Type
          description: Programmatic error type, e.g. `string_pattern_mismatch`.
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationFieldError
      description: One field-level problem within a `422` validation error.
    Status:
      type: string
      enum:
      - active
      - inactive
      title: Status
    DefaultResponse:
      properties:
        success:
          type: boolean
          title: Success
        message:
          type: string
          title: Message
      type: object
      required:
      - success
      - message
      title: DefaultResponse
    CallAppUpdate:
      properties:
        name:
          anyOf:
          - type: string
            minLength: 1
          - type: 'null'
          title: Name
        flow_url:
          anyOf:
          - type: string
            maxLength: 2083
            minLength: 1
            format: uri
          - type: 'null'
          title: Flow Url
        webhook_url:
          anyOf:
          - type: string
            maxLength: 2083
            minLength: 1
            format: uri
          - type: 'null'
          title: Webhook Url
        fallback_url:
          anyOf:
          - type: string
            maxLength: 2083
            minLength: 1
            format: uri
          - type: 'null'
          title: Fallback Url
        status:
          anyOf:
          - $ref: '#/components/schemas/Status'
          - type: 'null'
        channel_limit:
          anyOf:
          - type: integer
          - type: 'null'
          title: Channel Limit
        secret_id:
          anyOf:
          - type: string
          - type: 'null'
          title: Secret Id
        webhook_api_version:
          anyOf:
          - type: string
            enum:
            - '2025-08-01'
            - '2026-06-01'
          - type: 'null'
          title: Webhook Api Version
      additionalProperties: false
      type: object
      title: CallAppUpdate
    CallAppCreate:
      properties:
        name:
          type: string
          minLength: 1
          title: Name
        flow_url:
          type: string
          maxLength: 2083
          minLength: 1
          format: uri
          title: Flow Url
        webhook_url:
          type: string
          maxLength: 2083
          minLength: 1
          format: uri
          title: Webhook Url
        fallback_url:
          anyOf:
          - type: string
            maxLength: 2083
            minLength: 1
            format: uri
          - type: 'null'
          title: Fallback Url
        vn_ids:
          anyOf:
          - items:
              type: string
            type: array
          - type: 'null'
          title: Vn Ids
        secret_id:
          anyOf:
          - type: string
          - type: 'null'
          title: Secret Id
        webhook_api_version:
          anyOf:
          - type: string
            enum:
            - '2025-08-01'
            - '2026-06-01'
          - type: 'null'
          title: Webhook Api Version
        channel_limit:
          anyOf:
          - type: integer
          - type: 'null'
          title: Channel Limit
      additionalProperties: false
      type: object
      required:
      - name
      - flow_url
      - webhook_url
      title: CallAppCreate
    CallAppResponse:
      properties:
        name:
          type: string
          minLength: 1
          title: Name
        flow_url:
          type: string
          maxLength: 2083
          minLength: 1
          format: uri
          title: Flow Url
        webhook_url:
          type: string
          maxLength: 2083
          minLength: 1
          format: uri
          title: Webhook Url
        fallback_url:
          anyOf:
          - type: string
            maxLength: 2083
            minLength: 1
            format: uri
          - type: 'null'
          title: Fallback Url
        id:
          type: string
          title: Id
        status:
          $ref: '#/components/schemas/Status'
        channel_limit:
          anyOf:
          - type: integer
          - type: 'null'
          title: Channel Limit
        vn_count:
          type: integer
          title: Vn Count
          default: 0
        secret_id:
          anyOf:
          - type: string
          - type: 'null'
          title: Secret Id
        secret_name:
          anyOf:
          - type: string
          - type: 'null'
          title: Secret Name
        webhook_api_version:
          type: string
          enum:
          - '2025-08-01'
          - '2026-06-01'
          title: Webhook Api Version
        account_id:
          type: string
          title: Account Id
      type: object
      required:
      - name
      - flow_url
      - webhook_url
      - id
      - status
      - webhook_api_version
      - account_id
      title: CallAppResponse
    CallAppListResponse:
      properties:
        id:
          type: string
          title: Id
        name:
          type: string
          title: Name
      type: object
      required:
      - id
      - name
      title: CallAppListResponse
    LocationResponse:
      properties:
        id:
          type: string
          title: Id
        name:
          type: string
          title: Name
        region_code:
          type: string
          title: Region Code
        country_code:
          type: string
          title: Country Code
        country_name:
          anyOf:
          - type: string
          - type: 'null'
          title: Country Name
      type: object
      required:
      - id
      - name
      - region_code
      - country_code
      title: LocationResponse
    CursorPage_CallAppResponse_:
      properties:
        data:
          items:
            $ref: '#/components/schemas/CallAppResponse'
          type: array
          title: Data
          description: The page of results, newest first.
        next_cursor:
          anyOf:
          - type: string
          - type: 'null'
          title: Next Cursor
          description: Pass as `cursor_after` to fetch the next (older) page. `null` on the last page.
        previous_cursor:
          anyOf:
          - type: string
          - type: 'null'
          title: Previous Cursor
          description: Pass as `cursor_before` to fetch the previous (newer) page. `null` on the first page.
        has_more:
          type: boolean
          title: Has More
          description: Whether more results exist after this page.
          default: false
      type: object
      required:
      - data
      title: CursorPage[CallAppResponse]
    VNListResponse:
      properties:
        id:
          type: string
          title: Id
        account_id:
          type: string
          title: Account Id
        name:
          type: string
          title: Name
        number:
          type: string
          title: Number
        location:
          $ref: '#/components/schemas/LocationResponse'
        voice_app:
          anyOf:
          - $ref: '#/components/schemas/CallAppListResponse'
          - type: 'null'
        sip_trunk:
          anyOf:
          - $ref: '#/components/schemas/SipTrunkListResponse'
          - type: 'null'
      type: object
      required:
      - id
      - account_id
      - name
      - number
      - location
      - voice_app
      - sip_trunk
      title: VNListResponse
    SipTrunkListResponse:
      properties:
        id:
          type: string
          title: Id
        name:
          type: string
          title: Name
      type: object
      required:
      - id
      - name
      title: SipTrunkListResponse
    ValidationErrorResponse:
      properties:
        success:
          type: boolean
          title: Success
          description: Always `false`.
          default: false
        message:
          type: string
          title: Message
          description: Always `"Validation Error"` for this response.
          default: Validation Error
        errors:
          items:
            $ref: '#/components/schemas/ValidationFieldError'
          type: array
          title: Errors
          description: One entry per field that failed validation.
      type: object
      required:
      - errors
      title: ValidationErrorResponse
      description: Returned with `422` when the request fails schema validation.
      example:
        errors:
        - loc:
          - body
          - to_number
          msg: String should match pattern '^\+\d{7,15}$'
          type: string_pattern_mismatch
        message: Validation Error
        success: false
    CursorPage_VNListResponse_:
      properties:
        data:
          items:
            $ref: '#/components/schemas/VNListResponse'
          type: array
          title: Data
          description: The page of results, newest first.
        next_cursor:
          anyOf:
          - type: string
          - type: 'null'
          title: Next Cursor
          description: Pass as `cursor_after` to fetch the next (older) page. `null` on the last page.
        previous_cursor:
          anyOf:
          - type: string
          - type: 'null'
          title: Previous Cursor
          description: Pass as `cursor_before` to fetch the previous (newer) page. `null` on the first page.
        has_more:
          type: boolean
          title: Has More
          description: Whether more results exist after this page.
          default: false
      type: object
      required:
      - data
      title: CursorPage[VNListResponse]
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: Your secret account API key. Create one in the Teler dashboard.