Suno Audio Availability Check API

POST /suno/availability searches for positive evidence that audio can continue to be processed on the current route based on audio_id. It can be called before operations such as continuation and cover; the result only reflects the status at the time of checking and does not guarantee that a specific operation will succeed. This API returns synchronously, requires an API Token, and currently does not deduct Credits.

audio_id is the song ID returned by a completed Suno task, not task_id.

curl -X POST 'https://api.worldai.chat/suno/availability' \
  -H 'Authorization: Bearer YOUR_API_TOKEN' \
  -H 'Content-Type: application/json' \
  -d '{"audio_id":"33333333-3333-4333-8333-333333333333"}'

Successful response example:

{
  "success": true,
  "task_id": "11111111-1111-4111-8111-111111111111",
  "trace_id": "22222222-2222-4222-8222-222222222222",
  "data": {
    "id": "33333333-3333-4333-8333-333333333333",
    "available": true
  }
}

When the check succeeds, data.available can only be true. The “offline” status returned by some routes cannot prove that subsequent operations such as continuation cannot succeed, so this API returns 503 availability_unknown when it cannot be confirmed and will not return false. An invalid audio_id format returns 400, and rate limiting or upstream failures also return error responses. The status may still change between completion of the check and the actual operation.