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MIDI MCP Server

@tubone24

Repository

Basic information

Category

Other

License

MIT

Transports

stdio

Author

tubone24

About MIDI MCP Server

MIDI MCP Server is a Model Context Protocol (MCP) server that enables AI models to generate MIDI files from text-based music data. This tool allows for programmatic creation of musical compositions through a standardized interface.

MIDI MCP Server config

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

{
  "mcpServers": {
    "midi-mcp-server": {
      "command": "node",
      "args": [
        "build/index.js",
        "--http"
      ]
    }
  }
}

MIDI 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 MIDI MCP Server?

A Model Context Protocol (MCP) server for AI-driven MIDI composition. It generates MIDI files from structured JSON data, supports chord names, provides an interactive piano-roll preview UI, and offers multiple deployment modes (stdio, HTTP, Cloudflare Workers).

How to use MIDI MCP Server?

Deploy remotely via Cloudflare Workers (https://midi-mcp-server.tubone24.workers.dev/mcp) or run locally as a stdio or HTTP server. Use the create_midi tool to generate a MIDI file from a composition object, and parse_chord to resolve chord names into pitches. See the README for configuration examples for each transport.

Key features of MIDI MCP Server

  • Two MCP tools: create_midi and parse_chord
  • Rich pitch input: MIDI numbers, note names, pitch arrays, or chord names
  • Chord library with 25+ chord qualities
  • Flexible durations: numeric beats, standard strings, dotted, triplet
  • Seven built-in music theory reference documents as MCP resources
  • Three transport modes: stdio, HTTP, Cloudflare Workers
  • Interactive piano-roll preview and audio playback in supported MCP clients

Use cases of MIDI MCP Server

  • Compose MIDI songs directly from an AI conversation
  • Parse chord names into MIDI pitches and note names for analysis
  • Use music theory resources to guide composition decisions
  • Generate multi-track MIDI files with specified instruments and velocities
  • Embed MIDI generation into MCP‑compatible clients (e.g., Claude.ai)

Frequently asked questions

1

What deployment options are available?

The server can run as a local stdio process, a local HTTP server, or a remote Cloudflare Workers endpoint. The remote server is pre‑deployed at `https://midi-mcp-server.tubone24.workers.dev/mcp`.

2

What tools does the server expose?

Two tools: `create_midi` (generates a MIDI file from composition data) and `parse_chord` (resolves a chord name into its component MIDI numbers and note names).

3

What runtime and dependencies are required?

Node.js and npm. Key packages include `@modelcontextprotocol/sdk`, `midi-writer-js`, `zod`, and `soundfont-player`.

4

How do I specify pitches in a composition?

Pitches can be given as MIDI numbers (0–127), note name strings (e.g., `"C4"`), arrays of pitches, or chord names (e.g., `"Cmaj7"`). Accidentals `#` and `b` are supported.

5

What transport modes are supported?

The server supports stdio (default for local desktop clients), HTTP (local Streamable HTTP server), and Cloudflare Workers (remote, via HTTP). Authentication is not required.

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