Kling 3.0 Motion Control

Identifier

Use the model identifier kling-v3-motion-standard in the model field when calling /asset/start.

Capabilities

Property	Value
Reference inputs	2
Input types	`image` + `video`
Audio	yes
Max prompt length	2500 chars
Tags	`motion-control`

Inputs

This model takes named media inputs. Pass each one as a top-level field in the request body (not inside references). Each field accepts exactly one of url, asset_id, or avatar_id.

Field	Type	Required	Description
`start_image`	image	yes	Subject image. The model transfers the motion from the reference video onto this image.
`motion_video`	video	yes	Reference video whose motion pattern is applied to the start image.

url — a direct, publicly accessible file URL
asset_id — the ID of an existing asset in your Hoox space (e.g. a previous generation)
avatar_id — the ID of an avatar defined in your Hoox space

Custom settings

These keys go inside the model_settings object of the request body.

Key	Type	Default	Affects cost
`keepOriginalSound`	boolean	`true`	no

Pricing

Default parameters: ~13 credits / generation. For exact pricing with your own parameters, call /asset/pricing with the model and any parameters that affect cost.

Example request

{
  "type": "video",
  "model": "kling-v3-motion-standard",
  "prompt": "Describe what you want to generate",
  "start_image": {
    "url": "https://example.com/reference.jpg"
  },
  "motion_video": {
    "url": "https://example.com/reference.mp4"
  }
}

See /asset/start for the full request/response reference, error codes, and code samples in cURL / Python / JavaScript.

Kling 3.0 Motion Control Pro Kling 3.0 Pro

Script

Generation

Export

Avatar

Voices

Assets

Folder

Identifier

Capabilities

Inputs

Custom settings

Pricing

Example request

​Identifier

​Capabilities

​Inputs

​Custom settings

​Pricing

​Example request

Identifier

Capabilities

Inputs

Custom settings

Pricing

Example request