video extension

POST

https://api.key4u.vn/kling/v1/videos/video-extend

Request

Authorization

Provide your bearer token in the

Authorization

header when making requests to protected resources.

Example:

Authorization: Bearer ********************

Header Params

Body Params application/jsonRequired

Examples

Responses

🟢200

application/json

Bodyapplication/json

🟠400Bad request or validation failed

🟠401Missing or invalid API Key

Request Example

Shell

JavaScript

Java

Swift

curl --location 'https://api.key4u.vn/kling/v1/videos/video-extend' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
  "callback_url": "",
  "cfg_scale": 0.5,
  "negative_prompt": "",
  "prompt": "Extend the animation effect",
  "video_id": "828006748715380777"
}'

Response Example

200 - example

{
  "code": 0,
  "data": {
    "task_id": "task_example_001"
  },
  "message": "success"
}

Modified at 2026-10-13 12:32:40

Virtual try-on

video effects