black-forest-labs/flux-3/start-end-to-video-draft（開始画像・終了画像から動画生成）

# 1) Submit — returns { "task_uuid": "..." }
curl -X POST "https://www.namifusion.com/api/v1/marketplace/run/black-forest-labs/flux-3/start-end-to-video-draft" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "input": {
    "prompt": "A cinematic transition from a quiet sunrise over a misty mountain lake to a vibrant golden-hour city rooftop garden, with the camera gliding smoothly forward as nature gradually transforms into an urban oasis. Soft drifting fog becomes warm floating dust motes, colors shift from cool blue dawn to rich amber sunset, and subtle environmental motion adds realism.",
    "start_image": [
      "https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/08/05b3f6a21dc6.jpeg"
    ],
    "end_image": [
      "https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/08/878a6f06af39.jpeg"
    ],
    "aspect_ratio": "16:9",
    "duration": 5,
    "generate_audio": true
  }
}'

# 2) Poll until status is "completed", then read the output URLs
curl "https://www.namifusion.com/api/v1/marketplace/run/tasks/TASK_UUID" \
  -H "Authorization: Bearer YOUR_API_KEY"

import time, requests

API_KEY = "YOUR_API_KEY"
HEADERS = {"Authorization": f"Bearer {API_KEY}"}

# 1) Submit
resp = requests.post(
    "https://www.namifusion.com/api/v1/marketplace/run/black-forest-labs/flux-3/start-end-to-video-draft",
    headers=HEADERS,
    json={
        "input": {
            "prompt": "A cinematic transition from a quiet sunrise over a misty mountain lake to a vibrant golden-hour city rooftop garden, with the camera gliding smoothly forward as nature gradually transforms into an urban oasis. Soft drifting fog becomes warm floating dust motes, colors shift from cool blue dawn to rich amber sunset, and subtle environmental motion adds realism.",
            "start_image": [
                "https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/08/05b3f6a21dc6.jpeg"
            ],
            "end_image": [
                "https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/08/878a6f06af39.jpeg"
            ],
            "aspect_ratio": "16:9",
            "duration": 5,
            "generate_audio": True
        }
    },
)
resp.raise_for_status()  # 401/402/429/5xx stop here instead of polling a bad task
task = resp.json()

# 2) Poll until a terminal state (completed / failed / cancelled).
#    This model is allowed up to 1800s server-side.
deadline = time.time() + 1860
while task.get("status") not in ("completed", "failed", "cancelled"):
    if time.time() > deadline:
        raise TimeoutError(f"still {task.get('status')} — keep the task_uuid and poll later")
    time.sleep(3)
    poll = requests.get(f"https://www.namifusion.com/api/v1/marketplace/run/tasks/{task['task_uuid']}", headers=HEADERS)
    poll.raise_for_status()
    task = poll.json()

print(task["status"], task.get("output"))

const API_KEY = "YOUR_API_KEY";
const HEADERS = { Authorization: `Bearer ${API_KEY}` };

// 1) Submit
const resp = await fetch("https://www.namifusion.com/api/v1/marketplace/run/black-forest-labs/flux-3/start-end-to-video-draft", {
  method: "POST",
  headers: { ...HEADERS, "Content-Type": "application/json" },
  body: JSON.stringify({
    "input": {
      "prompt": "A cinematic transition from a quiet sunrise over a misty mountain lake to a vibrant golden-hour city rooftop garden, with the camera gliding smoothly forward as nature gradually transforms into an urban oasis. Soft drifting fog becomes warm floating dust motes, colors shift from cool blue dawn to rich amber sunset, and subtle environmental motion adds realism.",
      "start_image": [
        "https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/08/05b3f6a21dc6.jpeg"
      ],
      "end_image": [
        "https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/10/08/878a6f06af39.jpeg"
      ],
      "aspect_ratio": "16:9",
      "duration": 5,
      "generate_audio": true
    }
  }),
});
if (!resp.ok) throw new Error(`submit failed: ${resp.status} ${await resp.text()}`);
let task = await resp.json();

// 2) Poll until a terminal state (completed / failed / cancelled).
//    This model is allowed up to 1800s server-side.
const deadline = Date.now() + 1860 * 1000;
while (!["completed", "failed", "cancelled"].includes(task.status)) {
  if (Date.now() > deadline) throw new Error(`still ${task.status} — keep the task_uuid and poll later`);
  await new Promise((r) => setTimeout(r, 3000));
  const poll = await fetch(`https://www.namifusion.com/api/v1/marketplace/run/tasks/${task.task_uuid}`, { headers: HEADERS });
  if (!poll.ok) throw new Error(`poll failed: ${poll.status}`);
  task = await poll.json();
}

console.log(task.status, task.output);