klingai-video-extension

name	klingai-video-extension
description	Extend video duration using Kling AI continuation. Use when creating longer videos from shorter clips or building sequences. Trigger with phrases like 'klingai extend video', 'kling ai video continuation', 'klingai longer video', 'extend klingai clip'.
allowed-tools	Read, Write, Edit, Bash(npm:*), Grep
version	1.18.0
license	MIT
author	Jeremy Longshore <[e-mail]>
tags	["saas","kling-ai","video-extension","continuation"]
compatibility	Designed for Claude Code, also compatible with Codex and OpenClaw

Kling AI Video Extension

Overview

Extend an existing video by appending additional seconds. The extension endpoint takes the task_id of a completed video and generates a seamless continuation.

Endpoint: POST https://api.klingai.com/v1/videos/video-extend

Request Parameters

Parameter	Type	Required	Description
task_id	string	Yes	Task ID of the completed source video
prompt	string	No	Motion/scene description for extension
duration	string	No	Extension length: "5" (default)
mode	string	No	"standard" or "professional"
model_name	string	No	Default: "kling-v2-master"
callback_url	string	No	Webhook for completion

Basic Extension

import jwt, time, os, requests

BASE = "https://api.klingai.com/v1"

def get_headers():
    ak, sk = os.environ["KLING_ACCESS_KEY"], os.environ["KLING_SECRET_KEY"]
    token = jwt.encode(
        {"iss": ak, "exp": int(time.time()) + 1800, "nbf": int(time.time()) - 5},
        sk, algorithm="HS256", headers={"alg": "HS256", "typ": "JWT"}
    )
    return {: , : }


initial = requests.post(, headers=get_headers(), json={
    : ,
    : ,
    : ,
    : ,
}).json()
initial_task_id = initial[][]





extension = requests.post(, headers=get_headers(), json={
    : initial_task_id,
    : ,
    : ,
    : ,
}).json()
ext_task_id = extension[][]


 :
    time.sleep()
    result = requests.get(
        , headers=get_headers()
    ).json()
     result[][] == :
        extended_url = result[][][][][]
        ()
        
     result[][] == :
        ()