rosasynthesiz/flstudio-mcp

**Control FL Studio with Claude: AI mixing, composition, and mix diagnosis through natural language.**
*Claude diagnosing and fixing a mix in FL Studio through natural language.*
Overview
flstudio-mcp is a Model Context Protocol (MCP) server that lets Claude Desktop drive FL Studio 2025 directly — the mixer, plugins, piano roll, routing, and project — from plain-language requests. Ask for a mix diagnosis, a vocal chain, a chord progression in a particular scale, or a full arrangement, and Claude carries it out through FL's scripting API and a set of calibrated, safety-checked tools.
It is genre- and producer-agnostic: nothing about it assumes a particular style of music.
Quickstart
Wire the two virtual MIDI ports in FL (loopMIDI on Windows, IAC Driver on
macOS), arm MCP_Apply once in the piano roll, then ask Claude in plain
language:
> "Scan my mix and tell me what's wrong." — "Set up a vocal chain from my plugins." — "Export this arrangement to MIDI."
Full setup is below.
Capabilities
Mixing & diagnosis
- **Mix Doctor** — scans the whole mix and reports concrete problems (clipping, low headroom, level imbalance, missing high-pass, ungrouped related tracks, overlapping EQ boosts), each with the exact evidence and a proposed fix. Fixes are applied one at a time, only on approval, through a snapshot → write → readback → rollback safety layer. Master clipping is resolved by trimming the contributing source tracks rather than pulling the master.
- **Full-song peak watch** — holds a running peak per track across playback, so level decisions are based on the loudest moment of the actual song, not a single instant.
- **Calibrated processing intents** — musical EQ, compression, reverb, and delay moves mapped to real plugin parameters (native and third-party), each applied as one reversible change.
- **Level-aware compression** — sets thresholds relative to a track's measured level during playback.
- **Gain staging** — proposes per-track trims toward a healthy level with proper master headroom.
- **Reference match** — compares your mix's level and tonal balance against a reference track.
- **Bulk track control** — solo or mute a whole group (drums, vocals, …) in one step, with a one-call reset.
- **Track & channel coloring** — color a track, a channel, or a whole group (drums, vocals, …) by color name or hex, reversible like every other change.
Plugin & preset control
- Read and set plugin parameters by name, on native and third-party plugins (the parameter list is resolved live).
- **Chain suggestions** and **preset recommendations** drawn from your actual installed library — read directly from FL's plugin database and preset folders on disk, so recommendations are limited to what you own.
Composition
- **Multi-track MIDI export** — generate a complete arrangement as a standard MIDI file to import.
- **Multi-pattern arrangement** — create, name, clone, and mark sections.
- **Note and chord writing** into the piano roll, with quantize to a grid (for new notes and existing ones).
- **Composition in any scale or mode** — Western modes, pentatonic, ragas, maqam, and beyond — through the scale composer, where Claude supplies the notes for the requested scale.
Audio analysis
- Tempo and key estimation from an audio file.
- Melody-to-MIDI transcription (CREPE pitch tracking, with a lighter fallback).
The server exposes 67 tools across 14 categories, plus 6 live resources (project, mixer, transport, channels, patterns, status) that Claude can read directly.
What sets it apart
flstudio-mcp is built as a mixing and production assistant, not only a note sender. It diagnoses and repairs a whole mix, makes decisions from real measured levels rather than guesswork, and is aware of your actual plugin and preset library when it makes suggestions. Every change that touches the project is shown before it is applied, logged, and reversible.