klingai-video-extension

# 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 ```python 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 {"Authorization": f"Bearer {token}", "Content-Type": "application/json"} # Step 1: Generate the initial 5s video initial = requests.post(f"{BASE}/videos/text2video", headers=get_headers(), json={ "model_name": "kling-v2-master", "prompt": "A rocket launching from a desert landscape, cinematic", "duration": "5", "mode": "stan...