openapi: 3.0.3
info:
  title: Sync Labs Assets Generate API
  description: The Sync Labs API provides studio-grade AI lip-sync and visual dubbing capabilities. Generate perfectly synchronized lip movements for any video and audio input using state-of-the-art models. Supports single generation, batch processing, asset management, and webhook notifications. Used for video localization, content dubbing, personalized video, and educational content translation.
  version: v2
  contact:
    name: Sync Labs Support
    email: hello@sync.so
    url: https://sync.so
  license:
    name: Commercial
    url: https://sync.so/terms
servers:
- url: https://api.sync.so/v2
  description: Sync Labs API v2
security:
- ApiKeyAuth: []
tags:
- name: Generate
  description: Lip-sync video generation operations
paths:
  /generate:
    post:
      summary: Create Lip-Sync Generation
      description: Submit a video and audio input to generate a lip-synced output video. The operation is asynchronous — poll the GET endpoint or use webhooks for completion notification. Rate limited to 60 requests/min.
      operationId: createGeneration
      tags:
      - Generate
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/GenerationRequest'
      responses:
        '201':
          description: Generation job created successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GenerationResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimitExceeded'
        '500':
          $ref: '#/components/responses/InternalError'
    get:
      summary: List Generations
      description: List all generation jobs for the authenticated account
      operationId: listGenerations
      tags:
      - Generate
      parameters:
      - name: limit
        in: query
        schema:
          type: integer
          default: 20
          maximum: 100
        description: Maximum number of results to return
      - name: offset
        in: query
        schema:
          type: integer
          default: 0
        description: Pagination offset
      - name: status
        in: query
        schema:
          type: string
          enum:
          - pending
          - processing
          - completed
          - failed
        description: Filter by status
      responses:
        '200':
          description: List of generation jobs
          content:
            application/json:
              schema:
                type: object
                properties:
                  generations:
                    type: array
                    items:
                      $ref: '#/components/schemas/GenerationResponse'
                  total:
                    type: integer
                  has_more:
                    type: boolean
        '401':
          $ref: '#/components/responses/Unauthorized'
  /generate/{id}:
    get:
      summary: Get Generation Status
      description: Retrieve the status and result of a specific generation job
      operationId: getGeneration
      tags:
      - Generate
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
        description: Generation job ID
      responses:
        '200':
          description: Generation job details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GenerationResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
  /generate/estimate-cost:
    get:
      summary: Estimate Generation Cost
      description: Calculate the estimated cost before submitting a generation
      operationId: estimateGenerationCost
      tags:
      - Generate
      parameters:
      - name: model
        in: query
        required: true
        schema:
          $ref: '#/components/schemas/ModelId'
        description: AI model to use
      - name: duration
        in: query
        required: true
        schema:
          type: number
          format: float
        description: Video duration in seconds
      responses:
        '200':
          description: Cost estimate
          content:
            application/json:
              schema:
                type: object
                properties:
                  estimated_cost:
                    type: number
                    format: float
                    description: Estimated cost in USD
                  model:
                    type: string
                  duration_seconds:
                    type: number
                  cost_per_second:
                    type: number
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  responses:
    InternalError:
      description: Internal server error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Unauthorized - missing or invalid API key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    BadRequest:
      description: Bad request - invalid parameters
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    RateLimitExceeded:
      description: Rate limit exceeded (60 req/min on POST /v2/generate)
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    ModelId:
      type: string
      enum:
      - sync-3
      - lipsync-2-pro
      - lipsync-2
      - lipsync-1.9
      - react-1
      description: AI model identifier
    GenerationResponse:
      type: object
      properties:
        id:
          type: string
          description: Unique generation job ID
        status:
          type: string
          enum:
          - pending
          - processing
          - completed
          - failed
          description: Current job status
        created_at:
          type: string
          format: date-time
          description: Job creation timestamp
        completed_at:
          type: string
          format: date-time
          nullable: true
          description: Job completion timestamp
        video_url:
          type: string
          format: uri
          nullable: true
          description: URL to the output video (available when completed)
        model:
          $ref: '#/components/schemas/ModelId'
        error:
          type: string
          nullable: true
          description: Error message if status is failed
        duration_seconds:
          type: number
          format: float
          description: Duration of the generated video in seconds
        cost:
          type: number
          format: float
          nullable: true
          description: Actual cost of the generation in USD
    GenerationRequest:
      type: object
      required:
      - video_url
      - audio_url
      - model
      properties:
        video_url:
          type: string
          format: uri
          description: URL to the source video (MP4 or common video formats)
        audio_url:
          type: string
          format: uri
          description: URL to the source audio (WAV or MP3)
        video_asset_id:
          type: string
          description: Alternatively, provide an uploaded video asset ID
        audio_asset_id:
          type: string
          description: Alternatively, provide an uploaded audio asset ID
        model:
          $ref: '#/components/schemas/ModelId'
        webhook_url:
          type: string
          format: uri
          description: URL to receive webhook notification on completion
        synergize:
          type: boolean
          description: Enable multi-speaker detection and selection
        max_face_resolution:
          type: integer
          description: Maximum face resolution cap in pixels
        output_format:
          type: string
          enum:
          - mp4
          - webm
          default: mp4
          description: Output video format
    Error:
      type: object
      properties:
        error:
          type: string
          description: Error type
        message:
          type: string
          description: Human-readable error description
        request_id:
          type: string
          description: Request ID for support reference
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: API key from https://sync.so/settings/api-keys