Kling 4.0

import os
import time

import requests

BASE = "https://api.naga.ac/v1"
HEADERS = {"Authorization": "Bearer " + os.environ["NAGA_API_KEY"]}

# A job: 202 at once, then poll until it is done. Duration, resolution and
# aspect ratio default to the model's own; GET /v1/models lists them.
job = requests.post(
    f"{BASE}/videos",
    headers=HEADERS,
    json={
        "model": "kling/kling-v4.0",
        "prompt": "A red paper boat drifting on a calm lake at dawn",
    },
).json()

while job["status"] in ("pending", "in_progress"):
    time.sleep(10)
    job = requests.get(job["polling_url"], headers=HEADERS).json()

if job["status"] == "completed":
    video = requests.get(f"{BASE}/videos/{job['id']}/content", headers=HEADERS)
    with open("video.mp4", "wb") as file:
        file.write(video.content)
else:
    print(job["error"])