WellSaid Labs Clips API

openapi: 3.0.3
info:
  title: WellSaid Labs Clips API
  description: The WellSaid Labs API renders text into studio-quality AI voiceover. It exposes streaming text-to-speech (audio returned as an HTTP stream for low time-to-first-byte playback), word-level timing and subtitle rendering, asynchronous clip creation and combination, a catalog of voice avatars, and pronunciation control via replacement libraries and respelling suggestions. All requests authenticate with an X-Api-Key header. WellSaid does not currently support end-user authentication and recommends making requests from an internal or trusted source. API access is gated behind a trial API key and a business plan. Endpoints, request fields, and response shapes here are modeled from the public documentation at docs.wellsaidlabs.com and are honestly approximated where the reference does not publish a full schema.
  version: '1.0'
  contact:
    name: WellSaid Labs
    url: https://wellsaidlabs.com
servers:
- url: https://api.wellsaidlabs.com/v1
  description: WellSaid Labs API
security:
- apiKeyAuth: []
tags:
- name: Clips
  description: Asynchronous clip creation, retrieval, and combination.
paths:
  /clips:
    get:
      operationId: listClips
      tags:
      - Clips
      summary: List recent clips
      description: Returns a list of recently created text-to-speech clips.
      responses:
        '200':
          description: A list of clips.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Clip'
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      operationId: createClip
      tags:
      - Clips
      summary: Create a clip asynchronously
      description: Creates a new text-to-speech clip asynchronously. The clip is rendered in the background; poll the clip by id to retrieve its status and audio.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TtsRequest'
      responses:
        '202':
          description: The clip was accepted for asynchronous rendering.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Clip'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
  /clips/{clip_id}:
    get:
      operationId: getClip
      tags:
      - Clips
      summary: Get a single clip
      description: Returns information about a single clip, including its render status and audio URL.
      parameters:
      - $ref: '#/components/parameters/ClipId'
      responses:
        '200':
          description: The requested clip.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Clip'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
  /clips/combine:
    post:
      operationId: combineClips
      tags:
      - Clips
      summary: Combine clips into one file
      description: Combines a list of clips into a single audio file, inserting pauses between them. Useful for assembling longer-form voiceover from many rendered segments.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                clip_ids:
                  type: array
                  items:
                    type: string
                  description: The ids of the clips to combine, in order.
                pause:
                  type: number
                  format: float
                  description: Pause in seconds to insert between clips.
              required:
              - clip_ids
      responses:
        '200':
          description: The combined audio file (or a clip referencing it).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Clip'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    Clip:
      type: object
      properties:
        id:
          type: string
          description: The clip id.
        status:
          type: string
          description: Render status of the clip, for example "processing" or "complete".
        text:
          type: string
        speaker_id:
          type: string
        audio_url:
          type: string
          description: URL to the rendered audio once the clip is complete.
        created_at:
          type: string
          format: date-time
    Error:
      type: object
      properties:
        message:
          type: string
        code:
          type: string
    TtsRequest:
      type: object
      properties:
        text:
          type: string
          description: The text to convert to speech. Default keys allow up to 1,000 characters per request.
        speaker_id:
          type: string
          description: The voice avatar (speaker) id to render with, for example "3".
        model:
          type: string
          description: The voice model to use, for example "caruso" or "legacy".
      required:
      - text
      - speaker_id
  responses:
    NotFound:
      description: The requested resource was not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    RateLimited:
      description: Rate limit or monthly character quota exceeded. Inspect the x-rate-limit-* and x-quota-* response headers.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Missing or invalid X-Api-Key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  parameters:
    ClipId:
      name: clip_id
      in: path
      required: true
      schema:
        type: string
      description: The id of the clip.
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: X-Api-Key
      description: API key issued by WellSaid Labs, passed in the X-Api-Key header. Request a trial key from the console; production use requires a business plan.