MCP Audio Studio MCP server

MCP Audio Studio

An interactive digital audio workstation delivered as an MCP server and MCP App. It combines an FL-style channel rack, piano roll, playlist, mixer, effects, automation, plugin slots, audio-file tracks, microphone recording, and offline WAV rendering in one package.

The model and the person use the same authoritative project. Every UI action calls an MCP tool; every model-side edit becomes visible in an open studio through revision polling.

What works

• Tempo, time signature, swing, metronome, loop, play/stop, and microphone record controls.
• Instrument and audio tracks with a 16-step channel rack and chromatic piano roll.
• Audio file import, clip placement, gain/trim metadata, and browser playback.
• Per-channel and master volume, pan, mute, solo, sends, and animated meters.
• Four-band equalizer and filter, delay, reverb, distortion, compressor, chorus, and limiter slots.
• Playback and render automation for master/track mixing, EQ, sends, built-in effects, instrument parameters, and numeric plugin parameters, with linear, hold, and smooth control points.
• Built-in DSP slots, browser-safe Web Audio Module (WAM) slots, and VST3 control/state slots.
• Pure-JavaScript stereo WAV rendering, returned as playable MCP audio content.
• Project persistence, import, and export.
• stdio, Streamable HTTP, and HTTPS transports.
• Standalone browser mode at the HTTP/HTTPS server root.

Run it

npm via npx (recommended)

The package is published on npm. With Node.js 18 or newer, run it without installing or cloning the repository:

# MCP stdio
npx -y mcp-audio-studio@latest --stdio

# HTTP MCP endpoint + standalone studio
npx -y mcp-audio-studio@latest --http --port 3100

The HTTP studio opens at http://127.0.0.1:3100/; the MCP endpoint is http://127.0.0.1:3100/mcp.

One standalone executable

Download the executable for Windows, macOS, or Linux from GitHub Releases. It contains the server, MCP App, runtime, and JavaScript dependencies.

# MCP stdio
./mcp-audio-studio-windows-x64.exe --stdio

# HTTPS MCP endpoint + standalone studio
./mcp-audio-studio-windows-x64.exe --https --port 3100

Without configured certificates, HTTPS mode creates an ephemeral self-signed localhost certificate. For a trusted certificate, set MCPAUDIOSTUDIOTLSCERT and MCPAUDIOSTUDIOTLSKEY.

From source

For local development from a checked-out repository:

npm install
npm run build
node ./dist/index.js --stdio
node ./dist/index.js --http --port 3100

MCP client configuration

Use the npm package in an MCP client without a separate installation:

{
  "mcpServers": {
    "audio-studio": {
      "command": "npx",
      "args": ["-y", "mcp-audio-studio@latest", "--stdio"]
    }
  }
}

For a checked-out repository instead:

{
  "mcpServers": {
    "audio-studio": {
      "command": "node",
      "args": ["./dist/index.js", "--stdio"]
    }
  }
}

For a downloaded executable, replace command with its absolute path and use ["--stdio"] for args.

Call studioui to render the studio. The tool declares meta.ui.resourceUri = "ui://audio-studio/studio-v1.html", and the resource uses the portable text/html;profile=mcp-app MIME type and MCP Apps bridge.

MCP tools

Shortened. The full README is on GitHub.