openapi: 3.1.0
info:
  title: Google Cloud Text-to-Speech Text:synthesize Voices API
  description: Synthesizes natural-sounding speech from text or SSML input using Google's AI-powered voice synthesis technology.
  version: v1
  contact:
    name: Google Cloud
    url: https://cloud.google.com/text-to-speech
servers:
- url: https://texttospeech.googleapis.com/v1
tags:
- name: Voices
paths:
  /voices:
    get:
      operationId: listVoices
      summary: Google Cloud Text-To-Speech List available voices
      description: Returns a list of voices that can be used for synthesis.
      parameters:
      - name: languageCode
        in: query
        description: BCP-47 language tag to filter voices.
        schema:
          type: string
      responses:
        '200':
          description: Successful response containing available voices.
          content:
            application/json:
              schema:
                type: object
                properties:
                  voices:
                    type: array
                    items:
                      $ref: '#/components/schemas/Voice'
      tags:
      - Voices
components:
  schemas:
    Voice:
      type: object
      properties:
        languageCodes:
          type: array
          items:
            type: string
        name:
          type: string
        ssmlGender:
          type: string
          enum:
          - SSML_VOICE_GENDER_UNSPECIFIED
          - MALE
          - FEMALE
          - NEUTRAL
        naturalSampleRateHertz:
          type: integer