Suno 5.5

import time, requests

base, headers = "https://api.mixen.ai/v1", {"Authorization": "Bearer mxn-..."}
job = requests.post(f"{base}/audio/music", headers=headers, json={
    "model": "suno-music-generate", "mode": "simple",  # либо "custom" + lyrics/style/title
    "prompt": "lo-fi hip-hop, дождь за окном",
}).json()
while job["status"] not in ("completed", "failed"):
    time.sleep(5)
    job = requests.get(f"{base}/audio/music/{job['id']}", headers=headers).json()
for t in job.get("tracks", []):  # Suno = 2 трека, Lyria = 1
    r = requests.get(f"{base}/audio/music/{job['id']}/content",
                     headers=headers, params={"index": t["index"]})
    open(f"track_{t['index']}.mp3", "wb").write(r.content)