FL Studio MCP

An MCP server that lets an AI assistant (Claude or any MCP client) see and control FL Studio: transport, tempo, mixer, Channel Rack, patterns, playlist tracks, and the parameters of every plugin you load, VSTs included — plus a path for writing notes into the piano roll.

 AI client ──MCP──▶ fl-studio-mcp (Python) ──SysEx over loopMIDI──▶ "FL MCP Bridge" script ──▶ FL Studio API
   (Claude)            server/                                         (runs inside FL)

Status: 0.1 (alpha). The protocol, the server and the in-FL bridge script are covered by 33 automated tests that run the real bridge script against a simulated FL Studio API (tests/). It has not yet been verified against a live FL Studio session — see docs/LIMITATIONS.md and please open issues with what you find.

What the AI can do

Full reference: docs/TOOLS.md.

Related MCP server: FL Studio MCP Server

Install

Requirements: Windows (macOS works in principle — see SETUP), FL Studio 21+, Python 3.10+, loopMIDI (free virtual MIDI ports).

git clone https://github.com/DylanCop/fl-studio-mcp
cd fl-studio-mcp
pip install -e .
fl-studio-mcp install-fl-scripts     # copies the scripts into FL's folders

Then create the two loopMIDI ports, enable the controller in FL, and register the server with your MCP client. Step-by-step with screenshots-in-words: docs/SETUP.md.

Check everything with:

fl-studio-mcp doctor

Claude Desktop / Claude Code

{
  "mcpServers": {
    "fl-studio": { "command": "fl-studio-mcp", "args": ["serve"] }
  }
}

claude mcp add fl-studio -- fl-studio-mcp serve

Example prompts

• "Which plugins are on my Lead track, and what are the parameters of the reverb?"

• "Open the filter on Serum a bit — set Cutoff to 0.7 and Resonance to 0.2."

• "Set the tempo to 128 and mute the drum channel."

• "Write a 4-bar chord progression in A minor and stage it so I can import it into the piano roll."

How it works, and what it can't do

FL Studio exposes a Python MIDI controller scripting API. This project uses it as an RPC endpoint: the server talks JSON-over-SysEx to a controller script running inside FL. Because FL's API has hard limits (it can't load plugins, and only piano-roll scripts can write notes), some things need one click from you. Details in docs/ARCHITECTURE.md and docs/LIMITATIONS.md.

Development

pip install -e ".[dev]"
pytest

License

MIT — see LICENSE. Not affiliated with Image-Line. "FL Studio" is a trademark of Image-Line.