Media
Detect kick, snare, and hi-hat hits in a drum track or full mix, then layer or replace them with your own samples (or built-in synthesized ones).
Call this tool from your code in three languages.
# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'http://127.0.0.1:3003/api/upload/presign/drum-replacer' \
-H 'Content-Type: application/json' \
-d '{"filename":"audioFile.ext","contentType":"application/octet-stream","size":12345}'
curl -X POST 'http://127.0.0.1:3003/api/upload/presign/drum-replacer' \
-H 'Content-Type: application/json' \
-d '{"filename":"kickSample.ext","contentType":"application/octet-stream","size":12345}'
curl -X POST 'http://127.0.0.1:3003/api/upload/presign/drum-replacer' \
-H 'Content-Type: application/json' \
-d '{"filename":"snareSample.ext","contentType":"application/octet-stream","size":12345}'
curl -X POST 'http://127.0.0.1:3003/api/upload/presign/drum-replacer' \
-H 'Content-Type: application/json' \
-d '{"filename":"hatSample.ext","contentType":"application/octet-stream","size":12345}'
# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
--data-binary @/path/to/file.ext
# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'http://127.0.0.1:3003/en/api/tools/drum-replacer' \
-F 'audioFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'targets=kick,snare,hats' \
-F 'kickSample=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'snareSample=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'hatSample=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'blendMode=layer' \
-F 'sampleLevel=70' \
-F 'duckDepthDb=12' \
-F 'sensitivity=medium' \
-F 'outputFormat=wav'Send a POST request with your inputs as JSON. File parameters require a separate upload first.
POST http://127.0.0.1:3003/en/api/tools/drum-replacer| Name | Type | Required | Description |
|---|---|---|---|
| audioFile | fileupload required | Yes | — |
| targets | select | Yes | — |
| kickSample | fileupload required | No | — |
| snareSample | fileupload required | No | — |
| hatSample | fileupload required | No | — |
| blendMode | select | Yes | — |
| sampleLevel | number | No | — |
| duckDepthDb | number | No | — |
| sensitivity | select | Yes | — |
| outputFormat | select | Yes | — |
File result
{
"filePath": "/public/processing/randomid.ext",
"fileName": "output.ext",
"contentType": "application/octet-stream",
"size": 1024,
"metadata": {
"key": "value"
},
"error": "Error message (optional)",
"message": "Notification message (optional)"
}Add this tool to your Model Context Protocol server so AI agents can list and call it.
Add this block to your MCP client configuration:
{
"mcpServers": {
"elysiatools-drum-replacer": {
"name": "drum-replacer",
"description": "Detect kick, snare, and hi-hat hits in a drum track or full mix, then layer or replace them with your own samples (or built-in synthesized ones).",
"baseUrl": "http://127.0.0.1:3003/mcp/sse?toolId=drum-replacer",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}After connecting to the SSE endpoint, list the exposed tools:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Invoke the tool by its id, passing arguments built from its parameters:
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "drum-replacer",
"arguments": {
"audioFile": "https://example.com/file.ext",
"targets": [
"kick",
"snare",
"hats"
],
"kickSample": "https://example.com/file.ext",
"snareSample": "https://example.com/file.ext",
"hatSample": "https://example.com/file.ext",
"blendMode": "layer",
"sampleLevel": 70,
"duckDepthDb": 12,
"sensitivity": "medium",
"outputFormat": "wav"
}
}
}Questions or issues? Contact [email protected]