Retell AI List Voices API

openapi: 3.0.3
info:
  title: Retell SDK Add Community Voice List Voices API
  version: 3.0.0
  contact:
    name: Retell Support
    url: https://www.retellai.com/
    email: support@retellai.com
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0.html
servers:
- url: https://api.retellai.com
  description: The production server.
security:
- api_key: []
tags:
- name: List Voices
paths:
  /list-voices:
    get:
      description: List all voices available to the user
      operationId: listVoices
      responses:
        '200':
          description: Successfully retrieved all voices.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/VoiceResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '500':
          $ref: '#/components/responses/InternalServerError'
      tags:
      - List Voices
components:
  schemas:
    VoiceResponse:
      type: object
      required:
      - voice_id
      - voice_name
      - provider
      - gender
      properties:
        voice_id:
          type: string
          example: retell-Cimo
          description: Unique id for the voice.
        voice_name:
          type: string
          example: Adrian
          description: Name of the voice.
        provider:
          type: string
          enum:
          - elevenlabs
          - openai
          - deepgram
          - cartesia
          - minimax
          - fish_audio
          - platform
          example: elevenlabs
          description: Indicates the provider of voice.
        accent:
          type: string
          example: American
          description: Accent annotation of the voice.
        gender:
          type: string
          enum:
          - male
          - female
          example: male
          description: Gender of voice.
        age:
          type: string
          example: Young
          description: Age annotation of the voice.
        preview_audio_url:
          type: string
          example: https://retell-utils-public.s3.us-west-2.amazonaws.com/adrian.mp3
          description: URL to the preview audio of the voice.
  responses:
    InternalServerError:
      description: Internal Server Error
      content:
        application/json:
          schema:
            type: object
            properties:
              status:
                type: string
                enum:
                - error
              message:
                type: string
                example: An unexpected server error occurred.
    Unauthorized:
      description: Unauthorized
      content:
        application/json:
          schema:
            type: object
            properties:
              status:
                type: string
                enum:
                - error
              message:
                type: string
                example: API key is missing or invalid.
  securitySchemes:
    api_key:
      type: http
      scheme: bearer
      bearerFormat: string
      description: Authentication header containing API key (find it in dashboard). The format is "Bearer YOUR_API_KEY"