FL Studio Agent

FL Studio Agent

Drive FL Studio from an AI agent. fl-studio-agent is an MCP server, a Python SDK, and a native Bridge plugin: your agent writes notes, sets tempo, levels and plugin parameters, checks which channels sound, and renders the mix, in your own FL Studio.

Claude Code:

claude mcp add --scope user fl-studio -- uvx --python 3.12 fl-studio-agent

Quick start

You need FL Studio 2026 on macOS or Windows and uv.

1. Install uv if you don't have it. macOS: curl -LsSf https://astral.sh/uv/install.sh | sh. Windows: powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex", then install loopMIDI and add two ports named exactly FLMCP Req and FLMCP Res (Windows has no virtual MIDI ports; macOS needs nothing).

2. Set up FL Studio once. Start FL once if you never have, close it, then run (on Windows, in a terminal opened as administrator, because FL's plugin folder is under Program Files):

   uvx --python 3.12 --from fl-studio-agent fl-mcp-install
   

   It installs the controller and note scripts, assigns the controller's MIDI ports, creates the agent's own project (FLMCP Agent.flp; your other projects are never touched), and downloads the prebuilt Bridge plugin for live writes and render, checking it against the release's SHA-256 sums. It is safe to rerun. To update later, run it with fl-studio-agent@latest in place of fl-studio-agent and restart FL and your client.

3. Add the server to your client with a button above or a config below, open FL Studio, and ask for "a 4-bar chord loop in A minor".

claude mcp add --scope user fl-studio -- uvx --python 3.12 fl-studio-agent

{
  "mcpServers": {
    "fl-studio": {
      "command": "uvx",
      "args": [
        "--python",
        "3.12",
        "fl-studio-agent"
      ]
    }
  }
}

{
  "mcpServers": {
    "fl-studio": {
      "command": "uvx",
      "args": [
        "--python",
        "3.12",
        "fl-studio-agent"
      ]
    }
  }
}

code --add-mcp '{"name": "fl-studio", "type": "stdio", "command": "uvx", "args": ["--python", "3.12", "fl-studio-agent"]}'

{
  "mcpServers": {
    "fl-studio": {
      "command": "uvx",
      "args": [
        "--python",
        "3.12",
        "fl-studio-agent"
      ]
    }
  }
}

Troubleshooting

Run the doctor while FL Studio is open:

uvx --python 3.12 --from fl-studio-agent fl-mcp-doctor

It prints one JSON report of the control plane (controller script and MIDI ports), the note plane, and the agent project, with a fix for anything not connected. The usual fixes: open FL Studio before your client starts the server; after an upgrade rerun step 2 with fl-studio-agent@latest (a stale controller is reported); on Windows, keep loopMIDI running with both ports. Using the FL Studio trial? Set FLMCP_FL_LICENSE=trial in the server's env, because the trial cannot reopen saved projects. uvx --python 3.12 fl-studio-agent --version prints the installed version.

Tools

The server exposes five tools, one per job:

The working rhythm is write, check at milestones, render at the end. Every result is what FL now has, so nothing needs waiting for, saving, or re-reading. FL's transient refusals ("operation unsafe at current time", a busy control wire) are retried inside the engine; a model sees only errors it can act on. Setup diagnostics are for the operator, not the model: fl-mcp-doctor prints the same report as JSON.

How it works

Three complementary lanes: flpkit edits project files, the native Bridge plugin performs live host operations, and the MIDI controller script handles live controller operations. SETUP.md covers installing from a source checkout and building the Bridge.

Development

For a disposable live smoke session, run fl-mcp-dev-session. For the local merge gate, run:

scripts/gate.sh

The gate is the authoritative test count and verification contract; see docs/gate.md for its current stages.

Documentation

• SETUP.md: installation from source, the Bridge plugin, Windows.
• docs/README.md: current documentation map.
• docs/24-coverage-map.md: capability status.
• RUNBOOK_E2E.md: end-to-end verification.