FL Studio MCP Bridge

FL Studio MCP Bridge

Enables MCP-compatible chat to control FL Studio on Windows, including transport, BPM, channels, mixer, patterns, and note insertion via MIDI bridge.

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README

FL Studio MCP Bridge

Paquete para conectar un chat compatible con MCP a FL Studio en Windows.

Que incluye

  • mcp-server/fl_mcp_server.py: servidor MCP externo.
  • fl-studio-hardware-script/device_MCPBridge.py: script MIDI que va dentro de FL Studio.
  • mcp-server/fl_http_bridge.py: puente HTTP auxiliar/legacy incluido por compatibilidad.
  • requirements.txt: dependencia Python principal.
  • claude_desktop_config.example.json: ejemplo de configuracion MCP.

Requisitos

  1. Windows.
  2. FL Studio abierto.
  3. Python 3.9 o superior.
  4. loopMIDI instalado.
  5. Dos puertos loopMIDI creados exactamente con estos nombres:
    • MCP Bridge
    • MCP Notes

Instalacion

1. Instalar dependencias Python

Abre PowerShell en la carpeta mcp-server y ejecuta:

python -m pip install -r ..\requirements.txt

2. Instalar el script MIDI en FL Studio

Copia:

fl-studio-hardware-script\device_MCPBridge.py

a:

%USERPROFILE%\Documents\Image-Line\FL Studio\Settings\Hardware\MCP Bridge\device_MCPBridge.py

Si la carpeta MCP Bridge no existe, creala.

3. Activar en FL Studio

En FL Studio:

  1. Ve a Options > MIDI Settings.
  2. En Input, activa el puerto MCP Bridge.
  3. Asignale el script/controlador MCP Bridge.
  4. Activa tambien MCP Notes como controlador generico, sin script.

Importante: MCP Bridge dispara CC119 para que FL lea fl_request.json; MCP Notes manda notas MIDI reales al Piano Roll.

4. Configurar el cliente MCP

Usa el archivo claude_desktop_config.example.json como base y cambia las rutas si hace falta.

Ejemplo:

{
  "mcpServers": {
    "fl-studio": {
      "command": "C:\\Users\\TU_USUARIO\\AppData\\Local\\Programs\\Python\\Python312\\python.exe",
      "args": ["C:\\ruta\\a\\fl-studio-mcp-bridge\\mcp-server\\fl_mcp_server.py"]
    }
  }
}

Prueba rapida

Con FL Studio abierto y el script activo, pide al chat:

Prueba la conexion con FL Studio usando fl_status.

Si todo esta bien, debe devolver BPM, estado de reproduccion, patron actual, cantidad de canales y mixer tracks.

Herramientas principales

  • fl_status
  • fl_get_bpm
  • fl_set_bpm
  • fl_list_channels
  • fl_list_mixer
  • fl_list_patterns
  • fl_add_notes
  • fl_show_window
  • fl_play
  • fl_stop
  • fl_record
  • fl_rewind

Notas tecnicas

  • El IPC usa archivos JSON en:
%USERPROFILE%\Documents\Image-Line\FL Studio\Settings\Hardware\MCP Bridge
  • fl_request.json: request del servidor MCP hacia FL.
  • fl_response.json: respuesta de FL hacia el servidor MCP.
  • CC119 por MCP Bridge despierta el script MIDI.
  • MCP Notes se usa para grabar notas MIDI en el Piano Roll.
  • PPQ usado por el bridge: 96 ticks por beat.
  • En este bridge, MIDI 60 = C5.

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