Postfader

stdio

Readback-verified FL Studio transport, mixer, channel, sequencer, and plug-in control.

Getting Started

npx @getmcp/cli add io.github.synopsys0/postfader-fl-studio-mcp

Requires Python 3.10+. Community-contributed server. Review source before installing.

Claude Desktopguide →Vscodeguide →Cursorguide →Windsurfguide →

Required Environment Variables

FL_BRIDGE_ENABLE_MIDI
Set to 1 to build the MIDI SysEx transport. Without it the server cannot reach FL Studio.
FL_BRIDGE_MIDI_PORT
Exact virtual MIDI endpoint name shared with FL Studio. Postfader does not install or configure a virtual MIDI provider.
FL_STUDIO_USER_DATA_DIR
Absolute FL Studio user-data directory containing Settings/Hardware.

Configuration

Config file: ~/Library/Application Support/Claude/claude_desktop_config.json

JSON

{
  "mcpServers": {
    "io.github.synopsys0/postfader-fl-studio-mcp": {
      "command": "uvx",
      "args": [
        "postfader-fl-studio-mcp"
      ],
      "env": {
        "FL_BRIDGE_ENABLE_MIDI": "1",
        "FL_BRIDGE_MIDI_PORT": "",
        "FL_STUDIO_USER_DATA_DIR": ""
      }
    }
  }
}

Claude Desktop MCP documentation