> ## Documentation Index
> Fetch the complete documentation index at: https://docs.jiekou.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Kling V2.6 Pro Motion Control

This is an asynchronous API and only returns the `task_id` of the asynchronous task.

<Tip>
  This is an **asynchronous** API and will only return the task\_id of the asynchronous task. You should use this task\_id to request the [Get Task Result API](/en/docs/models/reference-get-async-task-result) to retrieve the generated result.
</Tip>

## Request Headers

<ParamField header="Content-Type" type="string" required={true}>
  Enum value: `application/json`
</ParamField>

<ParamField header="Authorization" type="string" required={true}>
  Bearer authentication format: Bearer \{\{API key}}.
</ParamField>

## Request Body

<ParamField body="image" type="string" required={true}>
  Reference image URL or base64-encoded image; supports `.jpg`, `.jpeg`, `.png`.
  The image file size must not exceed 10MB; both width and height must be >= 300px; the aspect ratio must be between 1:2.5 and 2.5:1.
</ParamField>

<ParamField body="video" type="string" required={true}>
  Reference motion video URL; supports `.mp4`, `.mov`.
  The video file size must not exceed 10MB; both width and height must be >= 300px; duration must be 3-30 seconds.
</ParamField>

<ParamField body="prompt" type="string">
  Positive prompt describing the scene, style, lighting, and more.
</ParamField>

<ParamField body="negative_prompt" type="string">
  Negative prompt; must not exceed 2500 characters.
</ParamField>

<ParamField body="keep_original_sound" type="boolean" default={true}>
  Whether to keep the original audio from the reference video.
</ParamField>

<ParamField body="character_orientation" type="string" required={true}>
  Output frame mode:

  * `image`: Match the framing of the reference image (5-second output)
  * `video`: Match the framing of the reference video (up to 30 seconds)

  Available values: `image`, `video`
</ParamField>

## Response Information

<ResponseField name="task_id" type="string" required={true}>
  Use task\_id to request the [Get Task Result API](/en/docs/models/reference-get-async-task-result) to retrieve the generated output.
</ResponseField>