> ## Documentation Index
> Fetch the complete documentation index at: https://docs.crun.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Suno API: Vocal Separation
> Separate clean vocal, accompaniment, or per‑instrument stems from a suno music track.
### 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.
```json vocal stem theme={null} theme={null}
{
"model": "suno/vocal-separatio",
"callback_url": "",
"input": {
"task_id": "task_12345678",
"suno_id": "suno_abc123",
"mode": "vocal"
}
}
```
```json instrumental stem theme={null} theme={null}
{
"model": "suno/vocal-separatio",
"callback_url": "",
"input": {
"task_id": "task_12345678",
"suno_id": "suno_abc123",
"mode": "instrumental"
}
}
```
### Related Resources
Existing Suno music tracks can originate from any of the following endpoints.
Create songs from text prompts with diverse
styles.
Continue and expand existing music
seamlessly.
Upload audio to extend and refine
compositions.
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:
Learn how to query vocal separation task status and retrieve generation results
## OpenAPI
````yaml suno-api/vocal-separation.json post /api/v1/client/job/CreateTask
openapi: 3.0.0
info:
title: Crun Suno Vocal Separation API
description: crun.ai Suno Vocal Separation API Documentation
version: 1.0.0
contact:
name: Technical Support
email: support@crun.ai
servers:
- url: https://api.crun.ai
description: API Server
security:
- ApiKeyAuth: []
paths:
/api/v1/client/job/CreateTask:
post:
summary: Suno vocal separation
operationId: suno/vocal-separatio
requestBody:
required: true
content:
application/json:
schema:
type: object
required:
- model
- input
properties:
model:
type: string
enum:
- suno/vocal-separatio
description: |-
The model name to use for generation. Required field.
- Must be `suno/vocal-separatio` for this endpoint
callback_url:
type: string
format: uri
description: >-
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
input:
$ref: '#/components/schemas/SunoVocalSeparationInput'
example:
model: suno/vocal-separatio
callback_url: https://your-domain.com/api/callback
input:
task_id: task_12345678
suno_id: suno_abc123
mode: vocal
responses:
'200':
description: Request successful
content:
application/json:
schema:
allOf:
- $ref: '#/components/schemas/ApiResponse'
- type: object
properties:
data:
type: object
properties:
task_id:
type: string
description: >-
Task ID, can be used with Get Task Details
endpoint to query task status
example: task_12345678
example:
code: 200
message: success
data:
task_id: task_12345678
'422':
description: Validation Error
content:
application/json:
schema:
allOf:
- $ref: '#/components/schemas/ApiResponse'
- type: object
properties:
errors:
type: array
description: Detailed validation error messages
items:
type: string
example:
- specific error field message
example:
code: 422
message: Missing Params or Type Error
errors:
- specific error field message
'500':
$ref: '#/components/responses/Error'
components:
schemas:
SunoVocalSeparationInput:
type: object
description: >-
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`.
properties:
task_id:
type: string
description: Task ID of the music generation task.
example: task_12345678
suno_id:
type: string
description: Suno song ID.
example: suno_abc123
mode:
type: string
enum:
- vocal
- instrumental
description: >-
Separation mode, different mode affect the return of task results.
- **vocal**: Extract the vocals + instrumental stem.
- **instrumental**: Extract the up to 12 stems – Vocals, Backing
Vocals, Drums, Bass, Guitar, Keyboard, Strings, Brass, Woodwinds,
Percussion, Synth, FX/Other
default: vocal
example: vocal
required:
- task_id
- suno_id
ApiResponse:
type: object
properties:
code:
type: integer
enum:
- 200
- 401
- 402
- 404
- 422
- 429
- 455
- 500
- 501
- 505
description: >-
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
message:
type: string
description: Response message, error description when failed
example: success
responses:
Error:
description: Server Error
securitySchemes:
ApiKeyAuth:
type: apiKey
in: header
name: x-api-key
description: >-
All APIs require authentication via API Key.
Get API Key:
1. Visit [API Key Management Page](https://crun.ai/user-api-key) 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
````