BudgetPixel Motion Control API

openapi: 3.2.0
info:
  title: Budgetpixel Motion Control API
  version: '2026-06-20'
  contact:
    email: support@budgetpixel.com
    name: BudgetPixel Support
  description: 'Operations tagged Motion Control across 2 of this provider''s published API definitions: budgetpixel-openapi.yaml, budgetpixel-openapi.yaml. Each path carries the servers of the definition it was published in.'
servers:
- description: Production
  url: https://api.budgetpixel.com/v1
security:
- ApiKeyAuth: []
tags:
- name: Motion Control
paths:
  /motion-control/{id}:
    get:
      description: 'Poll until `status` is `succeeded`. The generated video is returned as a

        short-lived signed `video_url` (valid for several hours; re-call for a fresh

        URL anytime — the underlying object is deleted 24h after generation).

        '
      operationId: getMotionControlJob
      parameters:
      - description: The opaque job id returned by the create endpoint (e.g. `mtn_...`).
        in: path
        name: id
        required: true
        schema:
          type: string
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MotionJob'
          description: Current job status. `video_url` is populated once succeeded.
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
      summary: Get motion control job status
      tags:
      - Motion Control
    servers:
    - description: Production
      url: https://api.budgetpixel.com/v1
  /motion-control/dreamactor-m2.0:
    post:
      description: 'BytePlus DreamActor M2.0 — drives the character in an image to replicate the motion, facial expressions, and lip movements from a reference video, preserving the subject and background of the image. Works for real people, animation, and pets. 720p MP4 output. Priced per second of the reference video (50 credits/second).


        **Asynchronous.** Returns a job `id` (the video is not in this response). Poll [`GET /v1/motion-control/{id}`](/api-reference/motion-control/get-motion-control-job-status) until `status` is `succeeded` — the video URL is in that response''s `video_url`.'
      operationId: createMotion_dreamactor_m2_0
      requestBody:
        content:
          application/json:
            schema:
              properties:
                image:
                  description: Character image to animate (the subject). A public image URL, a data URI, raw base64, or an uploaded-file URL from POST /v1/uploads. jpg/png, max 4.7 MB; 480x480 to 1920x1080 (larger images are scaled down).
                  type: string
                trim_intro:
                  default: true
                  description: Trim the 1-second transition at the start of the output video.
                  type: boolean
                video:
                  description: Motion reference video whose movement drives the character. A public video URL or an uploaded-file URL from POST /v1/uploads. mp4/webm, 3-30 seconds, up to 30 MB.
                  type: string
              required:
              - image
              - video
              type: object
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CreateMotionResponse'
          description: Job accepted.
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '429':
          $ref: '#/components/responses/TooManyRequests'
      summary: Motion control with DreamActor M2.0
      tags:
      - Motion Control
    servers:
    - description: Production
      url: https://api.budgetpixel.com/v1
  /motion-control/kling-3-motion-control-std:
    post:
      description: 'Kling 3.0 motion control (standard tier) — transfers the motion from a reference video onto a character image. Priced per second of the reference video (130 credits/second).


        **Asynchronous.** Returns a job `id` (the video is not in this response). Poll [`GET /v1/motion-control/{id}`](/api-reference/motion-control/get-motion-control-job-status) until `status` is `succeeded` — the video URL is in that response''s `video_url`.'
      operationId: createMotion_kling_3_motion_control_std
      requestBody:
        content:
          application/json:
            schema:
              properties:
                character_orientation:
                  default: video
                  description: Take the character's orientation from the reference video or from the image. With "image", the reference video must be 10 seconds or less.
                  enum:
                  - video
                  - image
                  type: string
                image:
                  description: Character image to animate. A public image URL, a data URI, raw base64, or an uploaded-file URL from POST /v1/uploads. jpg/png/webp.
                  type: string
                keep_original_sound:
                  default: true
                  description: Keep the original audio from the reference video.
                  type: boolean
                prompt:
                  default: Replace the characters in the video with the characters from the image, while strictly maintaining the characters' movements.
                  description: How the character should be animated.
                  type: string
                video:
                  description: Motion reference video whose movement drives the character. A public video URL or an uploaded-file URL from POST /v1/uploads. mp4/webm, 3-30 seconds (max 10 seconds when character_orientation is "image"), up to 30 MB.
                  type: string
              required:
              - image
              - video
              type: object
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CreateMotionResponse'
          description: Job accepted.
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '429':
          $ref: '#/components/responses/TooManyRequests'
      summary: Motion control with Kling 3.0 Motion Control Standard
      tags:
      - Motion Control
    servers:
    - description: Production
      url: https://api.budgetpixel.com/v1
components:
  responses:
    Forbidden:
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
      description: Authenticated but not permitted (plan gate, ownership, account restriction). Content-moderation blocks are 400, not 403.
    BadRequest:
      content:
        application/json:
          schema:
            oneOf:
            - $ref: '#/components/schemas/Error'
            - $ref: '#/components/schemas/ModerationBlocked'
      description: The request was malformed, referenced an unavailable model, or was blocked by input content moderation (moderation blocks carry a `restriction_reason` — see ModerationBlocked).
    TooManyRequests:
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
      description: Rate or queue limit reached. Retry after a short delay.
    Unauthorized:
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
      description: Missing or invalid API key.
    NotFound:
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
      description: The requested job was not found.
  schemas:
    MotionJob:
      properties:
        completed_at:
          format: date-time
          type: string
        created_at:
          format: date-time
          type: string
        error_message:
          type: string
        id:
          type: string
        model:
          type: string
        status:
          description: Lifecycle state. `succeeded`/`failed`/`canceled` are terminal.
          enum:
          - pending
          - processing
          - succeeded
          - failed
          - canceled
          type: string
        video_url:
          description: Short-lived presigned URL; present once `status=succeeded`.
          format: uri
          type: string
      type: object
    CreateMotionResponse:
      properties:
        credits:
          description: Total price of this job (seconds x the model's per-second rate).
          type: integer
        id:
          description: Opaque job id (`mtn_...`) — use it to poll status.
          type: string
        message:
          type: string
        model:
          type: string
        seconds:
          description: Billed duration — the reference video's length
          rounded up.: null
          type: integer
        status:
          $ref: '#/components/schemas/JobStatus'
      type: object
    ModerationBlocked:
      description: Returned (with HTTP 400) when the input content moderation gate blocks a generation request. The block is a property of the request's prompt or input media — reword the prompt or change the input and retry. Branch on `restriction_reason`, which is stable and machine-readable.
      properties:
        error:
          description: Human-readable explanation of the block.
          type: string
        restriction_reason:
          description: Stable machine-readable block reason.
          enum:
          - input_csam
          - input_explicit_adult
          - input_upload_nudity
          - input_celebrity_likeness
          - strict_model_nsfw
          type: string
      required:
      - error
      - restriction_reason
      type: object
    JobStatus:
      description: Lifecycle state. `succeeded`/`failed`/`timeout` are terminal.
      enum:
      - pending
      - starting
      - processing
      - completing
      - succeeded
      - failed
      - timeout
      type: string
    Error:
      properties:
        error:
          properties:
            code:
              description: Stable machine-readable code.
              example: model_not_available
              type: string
            message:
              type: string
            type:
              description: Error category.
              example: invalid_request_error
              type: string
          required:
          - type
          - code
          - message
          type: object
      required:
      - error
      type: object
  securitySchemes:
    ApiKeyAuth:
      bearerFormat: bpx_live_*
      description: 'API key as a bearer token: Authorization: Bearer bpx_live_xxx'
      scheme: bearer
      type: http
x-refined-from:
- budgetpixel-openapi.yaml
- budgetpixel-openapi.yaml