Seedance 2.5 API — 30-second clips, 480p to 4K

# 1) Quote: returns an id and the exact amount (in millionths of a USD)
curl https://api.makernice.com/v1/generations/quote \
  -H "Authorization: Bearer $MAKERNICE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"seedance-2.5","mode":"t2v","prompt":"A lone cyclist crosses a rain-soaked neon street at night, reflections shimmering on the asphalt, camera tracking alongside.","duration":10,"resolution":"720p","aspect_ratio":"16:9"}'

# 2) Create: same input + quote_id, with an Idempotency-Key
curl https://api.makernice.com/v1/generations \
  -H "Authorization: Bearer $MAKERNICE_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: seedance25-demo-001" \
  -d '{"quote_id":"qt_…","input":{"model":"seedance-2.5","mode":"t2v","prompt":"A lone cyclist crosses a rain-soaked neon street at night, reflections shimmering on the asphalt, camera tracking alongside.","duration":10,"resolution":"720p","aspect_ratio":"16:9"}}'

# 3) Poll until status is "succeeded", then download
curl https://api.makernice.com/v1/generations/gen_… -H "Authorization: Bearer $MAKERNICE_API_KEY"
curl -L -o seedance-2-5.mp4 https://api.makernice.com/v1/generations/gen_…/outputs/0 \
  -H "Authorization: Bearer $MAKERNICE_API_KEY"

import os, time, uuid, requests

API = "https://api.makernice.com/v1"
H = {"Authorization": f"Bearer {os.environ['MAKERNICE_API_KEY']}"}

job = {
    "model": "seedance-2.5",
    "mode": "t2v",
    "prompt": "A lone cyclist crosses a rain-soaked neon street at night, "
              "reflections shimmering on the asphalt, camera tracking alongside.",
    "duration": 10,
    "resolution": "720p",
    "aspect_ratio": "16:9",
}

quote = requests.post(f"{API}/generations/quote", json=job, headers=H).json()
print(f"Quoted ${int(quote['amount']) / 1e6:.2f}, valid until {quote['expires_at']}")

gen = requests.post(
    f"{API}/generations",
    json={"quote_id": quote["id"], "input": job},
    headers={**H, "Idempotency-Key": str(uuid.uuid4())},
).json()

while gen["status"] not in ("succeeded", "failed", "canceled"):
    time.sleep(5)
    gen = requests.get(f"{API}/generations/{gen['id']}", headers=H).json()

if gen["status"] == "succeeded":
    video = requests.get(f"https://api.makernice.com{gen['outputs'][0]['url']}", headers=H)
    open("seedance-2-5.mp4", "wb").write(video.content)
else:
    print("Not charged:", gen["status"])  # the hold is released in full