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POST
/
api
/
v1
/
client
/
job
/
CreateTask
kling v3-motion-control video generation
curl --request POST \
  --url https://api.crun.ai/api/v1/client/job/CreateTask \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "model": "kling/v3-motion-control",
  "callback_url": "https://your-domain.com/api/callback",
  "input": {
    "img_urls": [
      "https://example.com/character_design.png"
    ],
    "video_urls": [
      "https://example.com/action_reference.mp4"
    ],
    "character_orientation": "video",
    "prompt": "The character mirrors the skateboard motion while keeping a sharp cinematic look.",
    "mode": "pro",
    "keep_original_sound": true,
    "input_compliance": "enabled",
    "output_compliance": "enabled"
  }
}
'
{
  "code": 200,
  "message": "success",
  "data": {
    "task_id": "task_12345678"
  }
}

​
Overview

Kling 3.0 motion control generates videos where character actions match a reference video while the visual appearance is based on a reference image. Provide an image of a character and a video showing the motion you want, and the model produces a new video combining the character’s look with the reference motion. This V3.0 update brings improved element consistency and higher quality output compared to V2.6, with better preservation of character identity and smoother motion transfer.

​
Query Task Status

After submitting a task, use the unified query endpoint to check progress and retrieve results:

Get Task Info

Learn how to query task status and retrieve generation results
For production use, we recommend using the callback_url parameter to receive automatic notifications when generation completes, rather than polling the status endpoint.

Models Overview

Explore all available models

Common API

Check credits and account usage

Authorizations

​
x-api-key
string
header
required

All APIs require authentication via API Key.

Get API Key:

  1. Visit API Key Management Page to get your API Key

Usage: Add to request header:

x-api-key: YOUR_API_KEY

Note:

  • Keep your API Key secure and do not share it with others
  • If you suspect your API Key has been compromised, reset it immediately in the management page

Body

application/json
​
model
enum<string>
required

The model name to use for generation. Required field.

  • Must be kling/v3-motion-control for this endpoint
Available options:
kling/v3-motion-control
​
input
object
required

Input parameters for Kling 3.0 motion control. This endpoint is used for action imitation by combining one reference image with one reference video.

​
callback_url
string<uri>

Optional. Callback URL for receiving task completion notifications.

  • System will POST task status and results to this URL when generation completes
  • Callback payloads structure is consistent with the data object returned by the task status query
  • Your callback endpoint should accept POST requests with JSON payload containing results
  • It returns an HTTP 200 status code upon successful receipt
Example:

"https://your-domain.com/api/callback"

Response

Request successful

​
code
enum<integer>

Response status code

  • 200: Success - Request has been processed successfully
  • 401: Unauthorized - Authentication credentials are missing or invalid
  • 402: Insufficient Credits - Account does not have enough credits to perform the operation
  • 404: Not Found - The requested resource or endpoint does not exist
  • 422: Validation Error - The request parameters failed validation checks
  • 429: Rate Limited - Request limit has been exceeded for this resource
  • 455: Service Unavailable - System is currently undergoing maintenance
  • 500: Server Error - An unexpected error occurred while processing the request
  • 501: Generation Failed - Content generation task failed
  • 505: Feature Disabled - The requested feature is currently disabled
Available options:
200,
401,
402,
404,
422,
429,
455,
500,
501,
505
​
message
string

Response message, error description when failed

Example:

"success"

​
data
object