Deepdub TTS API

openapi: 3.0.0
info:
  title: Deepdub Dubbing TTS API
  description: Deepdub's Text-to-Speech API enables high-quality, expressive speech generation with voice cloning, accent control, and real-time streaming capabilities.
  contact:
    email: support@deepdub.ai
  version: '1.0'
servers:
- url: https://restapi.deepdub.ai/api/v1
  description: Production
security:
- ApiKeyAuth: []
tags:
- name: TTS
paths:
  /tts:
    post:
      operationId: generateTTS
      description: 'Generate and stream TTS audio based on the provided text. Returns an audio stream in the specified format (default MP3). Supported formats: `mp3`, `opus`, `mulaw`. For `wav` or `s16le` output, use the WebSocket API.'
      tags:
      - TTS
      summary: Generate and stream TTS audio
      parameters:
      - description: API Key
        name: x-api-key
        in: header
        required: true
        schema:
          type: string
          default: dd-00000000000000000000000065c9cbfe
        example: dd-00000000000000000000000065c9cbfe
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/model.GenerationRequest'
            example:
              model: dd-etts-3.0
              targetText: Hello world, welcome to Deepdub.
              locale: en-US
              voicePromptId: bd1b00bb-be1c-4679-8eaa-0fcbfd4ff773
      responses:
        '200':
          description: Audio stream in the requested format (MP3, Opus, or mulaw depending on `format` parameter). The response body is raw audio bytes.
        '400':
          description: Bad request — invalid or missing parameters
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/model.APIError'
              example:
                success: false
                message: 'Invalid request: missing required field ''targetText'''
        '401':
          description: Unauthorized — invalid or missing API key
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/model.APIError'
              example:
                success: false
                message: 'Unauthorized: invalid or missing API key'
        '402':
          description: Insufficient credits — your account has run out of TTS credits
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/model.APIError'
              example:
                success: false
                message: 'InsufficientCredits: your account has no remaining credits'
        '429':
          description: Rate limit exceeded — too many concurrent requests
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/model.APIError'
              example:
                success: false
                message: 'RateLimit: concurrent request limit exceeded'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/model.APIError'
              example:
                success: false
                message: Internal server error
components:
  schemas:
    model.APIError:
      description: Error response returned for all non-2xx status codes
      type: object
      required:
      - success
      - message
      properties:
        success:
          description: Always false for error responses
          type: boolean
          example: false
        message:
          description: Human-readable error message
          type: string
          example: Invalid request parameters
    model.GenerationRequest:
      description: 'Request structure for TTS generation endpoints.


        **Optional parameters** (not shown in playground): `generationId` (string), `targetDuration` (number, seconds), `tempo` (number, 0.5–2.0), `variance` (number, 0.0–1.0), `seed` (integer), `temperature` (number, 0.0–1.0), `sampleRate` (integer), `format` (string: mp3/opus/mulaw — default mp3), `promptBoost` (boolean), `superStretch` (boolean), `realtime` (boolean), `cleanAudio` (boolean, default true), `autoGain` (boolean), `publish` (boolean), `accentControl` (object with accentBaseLocale, accentLocale, accentRatio), `performanceReferencePromptId` (string), `voiceReference` (string, base64-encoded audio).'
      type: object
      required:
      - locale
      - model
      - targetText
      - voicePromptId
      properties:
        model:
          description: Model ID to use for generation
          type: string
          default: dd-etts-3.0
          example: dd-etts-3.0
        targetText:
          description: Text to be converted to speech
          type: string
          example: Hello world, welcome to Deepdub.
        locale:
          description: Language locale code (e.g., en-US, fr-FR)
          type: string
          example: en-US
        voicePromptId:
          description: ID of the voice prompt to use for generation
          type: string
          example: bd1b00bb-be1c-4679-8eaa-0fcbfd4ff773
      additionalProperties: true
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: API key for authentication. Must start with `dd-` prefix.
externalDocs:
  description: OpenAPI
  url: https://restapi.deepdub.ai/api/v1/swagger/index.html