Sonic Pi MCP Server

@abhishekjairath

Basic information

About Sonic Pi MCP Server

Model Context Protocol (MCP) server for controlling Sonic Pi through AI assistants

Sonic Pi MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "sonic-pi-mcp": {
      "command": "bun",
      "args": [
        "run",
        "dev"
      ]
    }
  }
}

Sonic Pi MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is Sonic Pi MCP?

A Model Context Protocol server that allows AI assistants (like Claude and Cursor) to interact with Sonic Pi through OSC messages, enabling programmatic music creation and control.

How to use Sonic Pi MCP?

Install Bun and ensure Sonic Pi v4+ is running. Add the provided live_loop :code_runner code to a Sonic Pi buffer and execute it. Configure your MCP client (e.g., Cursor or Claude Desktop) with the command bunx sonic-pi-mcp and stdio transport. Then use the play_note and run_code tools to control Sonic Pi.

Key features of Sonic Pi MCP

Play individual notes with customizable synth parameters
Execute arbitrary Sonic Pi code from AI assistants
Works with any MCP-compatible client (Claude Desktop, Cursor, etc.)
Supports OSC communication on port 4560
Simple JSON-based tool parameters

Use cases of Sonic Pi MCP

Compose melodies and harmonies through natural language prompts
Generate complex rhythmic patterns programmatically
Live-code music using AI assistance in real time
Create and test Sonic Pi code without manual editing

Frequently asked questions

What prerequisites are needed?

Bun runtime and Sonic Pi v4.0 or higher are required.

How do I set up Sonic Pi to work with the server?

Add the provided `live_loop :code_runner` code to a Sonic Pi buffer, run it, and ensure Sonic Pi is listening on port 4560.

What transport does the server use?

It uses stdio transport with OSC messages sent to Sonic Pi.

Why is there no sound?

Ensure Sonic Pi is running, the OSC handler code is active, and no other application is blocking port 4560.

How do I debug code execution errors?

Check the Sonic Pi log window for errors, verify your Sonic Pi code syntax, and make sure all required synths and samples are available.

Comments

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