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POST
/
api
/
v1
/
client
/
job
/
CreateTask
Suno vocal separation
curl --request POST \
  --url https://api.crun.ai/api/v1/client/job/CreateTask \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "model": "suno/vocal-separatio",
  "callback_url": "https://your-domain.com/api/callback",
  "input": {
    "task_id": "task_12345678",
    "suno_id": "suno_abc123",
    "mode": "vocal"
  }
}
'
{
  "code": 200,
  "message": "success",
  "data": {
    "task_id": "task_12345678"
  }
}

​
Important Notes

  • Requires both task_id and suno_id from a previously generated Suno music task
  • Different mode affect the return of task results
  • mode controls which stem you want: vocal or instrumental
    • vocal: 2 stems - Vocals + Instrumental
    • instrumental: Up to 12 stems – Vocals, Backing Vocals, Drums, Bass, Guitar, Keyboard, Strings, Brass, Woodwinds, Percussion, Synth, FX/Other

​
Vocal Separation

Separate vocals or instrumentals from an existing Suno music result. 
{
    "model": "suno/vocal-separatio",
    "callback_url": "",
    "input": {
        "task_id": "task_12345678",
        "suno_id": "suno_abc123",
        "mode": "vocal"
    }
}
Existing Suno music tracks can originate from any of the following endpoints.

Generate Music

Create songs from text prompts with diverse styles.

Extend Music

Continue and expand existing music seamlessly.

Extend Upload

Upload audio to extend and refine compositions.

Music Cover

Recreate songs in new styles or voices.

​
Get Task Result

After submitting a task, use the unified query endpoint to check progress and retrieve results:

Get Vocal Separation Info

Learn how to query vocal separation task status and retrieve generation results

Authorizations

​
x-api-key
string
header
required

All APIs require authentication via API Key.

Get API Key:

  1. Visit API Key Management Page to get your API Key

Usage: Add to request header:

x-api-key: YOUR_API_KEY

Note:

  • Keep your API Key secure and do not share it with others
  • If you suspect your API Key has been compromised, reset it immediately in the management page

Body

application/json
​
model
enum<string>
required

The model name to use for generation. Required field.

  • Must be suno/vocal-separatio for this endpoint
Available options:
suno/vocal-separatio
​
input
object
required

Input parameters for separating vocals and instrumentals.

Rules:

  • task_id is required and must reference a completed Suno music task.
  • suno_id is required and must reference the music item within that task.
  • mode defaults to vocal.
​
callback_url
string<uri>

Optional. Callback URL for receiving task completion notifications.

  • System will POST task status and results to this URL when generation completes
  • Callback payloads structure is consistent with the data object returned by the task status query
  • Your callback endpoint should accept POST requests with JSON payload containing results
  • It returns an HTTP 200 status code upon successful receipt
Example:

"https://your-domain.com/api/callback"

Response

Request successful

​
code
enum<integer>

Response status code

  • 200: Success - Request has been processed successfully
  • 401: Unauthorized - Authentication credentials are missing or invalid
  • 402: Insufficient Credits - Account does not have enough credits to perform the operation
  • 404: Not Found - The requested resource or endpoint does not exist
  • 422: Validation Error - The request parameters failed validation checks
  • 429: Rate Limited - Request limit has been exceeded for this resource
  • 455: Service Unavailable - System is currently undergoing maintenance
  • 500: Server Error - An unexpected error occurred while processing the request
  • 501: Generation Failed - Content generation task failed
  • 505: Feature Disabled - The requested feature is currently disabled
Available options:
200,
401,
402,
404,
422,
429,
455,
500,
501,
505
​
message
string

Response message, error description when failed

Example:

"success"

​
data
object