Inworld AI

Inworld AI Voices API

Voice catalog and custom voice management

Documentation GitHub OpenAPI

Operations 8

GET /v1/tts/voices List available TTS voices #

GET /v1/voices List voices #

GET /v1/voices/{id} Get voice #

PATCH /v1/voices/{id} Update voice #

DELETE /v1/voices/{id} Delete voice #

POST /v1/voices/clone Clone voice from audio #

POST /v1/voices/design Design voice from text description #

POST /v1/voices/publish Publish a voice #

Specifications

⚙

OpenAPI

https://raw.githubusercontent.com/api-evangelist/inworld/refs/heads/main/openapi/inworld-voices-api-openapi.yml

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Inworld AI Models Voices API
  description: 'REST API for Inworld AI''s voice and conversational AI platform, covering

    Text-to-Speech (synchronous and streaming), Speech-to-Text, voice

    management, models, and the LLM Router that fronts 220+ third-party

    models via the OpenAI-compatible chat completions endpoint.

    '
  version: '1.0'
  contact:
    name: Inworld AI
    url: https://docs.inworld.ai
servers:
- url: https://api.inworld.ai
  description: Production API
security:
- basicAuth: []
tags:
- name: Voices
  description: Voice catalog and custom voice management
paths:
  /v1/tts/voices:
    get:
      tags:
      - Voices
      summary: List available TTS voices
      operationId: listTtsVoices
      responses:
        '200':
          description: A list of TTS voices
          content:
            application/json:
              schema:
                type: object
                properties:
                  voices:
                    type: array
                    items:
                      $ref: '#/components/schemas/Voice'
  /v1/voices:
    get:
      tags:
      - Voices
      summary: List voices
      operationId: listVoices
      responses:
        '200':
          description: Voice list
          content:
            application/json:
              schema:
                type: object
                properties:
                  voices:
                    type: array
                    items:
                      $ref: '#/components/schemas/Voice'
  /v1/voices/{id}:
    get:
      tags:
      - Voices
      summary: Get voice
      operationId: getVoice
      parameters:
      - $ref: '#/components/parameters/VoiceId'
      responses:
        '200':
          description: Voice details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Voice'
    patch:
      tags:
      - Voices
      summary: Update voice
      operationId: updateVoice
      parameters:
      - $ref: '#/components/parameters/VoiceId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Voice'
      responses:
        '200':
          description: Updated voice
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Voice'
    delete:
      tags:
      - Voices
      summary: Delete voice
      operationId: deleteVoice
      parameters:
      - $ref: '#/components/parameters/VoiceId'
      responses:
        '204':
          description: Voice deleted
  /v1/voices/clone:
    post:
      tags:
      - Voices
      summary: Clone voice from audio
      operationId: cloneVoice
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                name:
                  type: string
                audioSample:
                  type: string
                  format: byte
                  description: Base64-encoded audio sample
      responses:
        '200':
          description: Cloned voice
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Voice'
  /v1/voices/design:
    post:
      tags:
      - Voices
      summary: Design voice from text description
      operationId: designVoice
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                description:
                  type: string
      responses:
        '200':
          description: Designed voice
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Voice'
  /v1/voices/publish:
    post:
      tags:
      - Voices
      summary: Publish a voice
      operationId: publishVoice
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                voiceId:
                  type: string
      responses:
        '200':
          description: Voice published
components:
  schemas:
    Voice:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        language:
          type: string
        gender:
          type: string
        description:
          type: string
        previewUrl:
          type: string
          format: uri
  parameters:
    VoiceId:
      name: id
      in: path
      required: true
      schema:
        type: string
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: 'Authentication uses HTTP Basic with the API key as the username

        (password empty), encoded as: `Authorization: Basic base64(apiKey:)`.

        Get an API key at https://platform.inworld.ai.

        '