curl --request POST \
--url https://api.poyo.ai/api/generate/submit \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "upload-and-separate-vocals",
"callback_url": "https://your-domain.com/callback",
"input": {
"title": "My Audio Track",
"audio_url": "https://example.com/audio/my-track.mp3",
"model_name": "base",
"output_type": "general"
}
}
'{
"code": 200,
"data": {
"task_id": "task-unified-1757165031-uyujaw3d",
"status": "not_started",
"created_time": "2025-11-12T10:30:00"
}
}{
"code": 409,
"error": {
"message": "Separation already exists for this audio",
"type": "conflict_error"
}
}Upload and Separate Vocals
Upload audio and separate it into multiple stems
curl --request POST \
--url https://api.poyo.ai/api/generate/submit \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "upload-and-separate-vocals",
"callback_url": "https://your-domain.com/callback",
"input": {
"title": "My Audio Track",
"audio_url": "https://example.com/audio/my-track.mp3",
"model_name": "base",
"output_type": "general"
}
}
'{
"code": 200,
"data": {
"task_id": "task-unified-1757165031-uyujaw3d",
"status": "not_started",
"created_time": "2025-11-12T10:30:00"
}
}{
"code": 409,
"error": {
"message": "Separation already exists for this audio",
"type": "conflict_error"
}
}- After submission, a
task_idwill be returned. If you provided acallback_url, when the task status becomesfinishedorfailed, a POST request will be sent to thecallback_url. - Regardless of whether
callback_urlis provided, you can retrieve the response result through the unified Query Music Detail endpoint.
Usage Guide
- separate-vocals: Does not support uploading audio, 2-stem split, based on Suno
- stem-split: Does not support uploading audio, 12-stem split, based on Suno
- upload-and-separate-vocals: Supports uploading audio, 7-stem split
- This endpoint uploads audio and separates it into multiple stems
- Creates separate tracks for bass, drums, piano, guitar, vocals, and other
- Useful for remixing or isolating specific instruments from uploaded audio
Parameter Details
audio_url(required): URL of the audio file to upload and separatetitle(optional): Title for the separation taskmodel_name(optional): Separation model to use. Default:basebase: Standard separation qualityenhanced: Higher quality separation with better accuracyinstrumental: Optimized for instrumental tracks
output_type(optional): Type of output stems to generate. Default:generalgeneral: All available stemsbass: Bass track onlydrums: Drums track onlyother: Other instrumentspiano: Piano track onlyguitar: Guitar track onlyvocals: Vocals track only
Authorizations
All API endpoints require Bearer Token authentication.
Create an API key: sign in to PoYo, open Dashboard → API Key at poyo.ai/dashboard/api-key, and click to create a key.
Add it to the request header:
Authorization: Bearer YOUR_API_KEY
Body
API model identifier.
Must be upload-and-separate-vocals for this endpoint.
upload-and-separate-vocals "upload-and-separate-vocals"
Webhook callback URL for result notifications.
The endpoint will receive POST requests with separation completion status and download URLs for each track.
"https://your-domain.com/callback"
Input parameters for upload and vocal separation
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Response
Task submitted successfully
Business status code. 200 means success; any other value means the request failed. Always check this field: some validation errors return HTTP 200 with code: 400 in the body.
200: Success400: Invalid request parameters401: Missing or invalid API key402: Insufficient credits403: Permission denied404: Resource not found408: Request timeout429: Rate limit exceeded500: Internal server error502: Upstream service error503: Service unavailable
See Error Codes for details.
200, 400, 401, 402, 403, 404, 408, 429, 500, 502, 503 200
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