POST
/
api
/
v1
/
generate
/
add-instrumental
Add Instrumental to Music
curl --request POST \
  --url https://api.kie.ai/api/v1/generate/add-instrumental \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "uploadUrl": "https://example.com/music.mp3",
  "title": "Relaxing Piano",
  "negativeTags": "heavy metal, fast drums",
  "tags": "relaxing, piano, soothing",
  "callBackUrl": "https://example.com/callback",
  "vocalGender": "m",
  "styleWeight": 0.61,
  "weirdnessConstraint": 0.72,
  "audioWeight": 0.65
}'
{
  "code": 200,
  "msg": "success",
  "data": {
    "taskId": "5c79****be8e"
  }
}

​
Usage Guide

  • Use this interface to add instrumental tracks to existing audio
  • Supports generation of various music style accompaniments
  • Allows customization of style, exclusion of specific elements, etc.

​
Parameter Details

  • uploadUrl specifies the audio file URL to be processed
  • title specifies the title for the generated music
  • tags and negativeTags are used to control music style
  • Supports various optional parameters for fine-tuning generation effects

​
Developer Notes

  • Generated files will be retained for 14 days
  • Callback process has three stages: text (text generation), first (first track completed), complete (all completed)

Authorizations

​
Authorization
string
header
required

All APIs require authentication via Bearer Token.

Get API Key:

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

Usage: Add to request header: Authorization: Bearer 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

Response

200
application/json

Request successful

The response is of type object.