AbletonMCP

Implementation Reference

• MCP_Server/server.py:687-695 (handler)

  MCP tool handler function for 'add_device'. Proxies the request to the Ableton remote script by sending a socket command.

  @mcp.tool()
  def add_device(ctx: Context, track_index: int, device_type: str) -> str:
      try:
          ableton = get_ableton_connection()
          result = ableton.send_command("add_device", {"track_index": track_index, "device_type": device_type})
          return f"Added device type '{result.get('device_type')}' to track '{result.get('track_name')}' - Note: {result.get('note')}"
      except Exception as e:
          logger.error(f"Error adding device: {str(e)}")
          return f"Error adding device: {str(e)}"

• AbletonMCP_Remote_Script/__init__.py:1518-1538 (helper)

  Underlying implementation in Ableton remote script that handles the 'add_device' socket command from MCP server. Currently a stub that returns success without actually adding a device.

  def _add_device(self, track_index, device_type):
      """Add a device to a track"""
      try:
          if track_index < 0 or track_index >= len(self._song.tracks):
              raise IndexError("Track index out of range")
          
          track = self._song.tracks[track_index]
          
          # This is a simplified implementation - in reality, you'd need to
          # use the browser to load specific devices
          # For now, we'll just return success
          result = {
              "added": True,
              "device_type": device_type,
              "track_name": track.name,
              "note": "Device loading requires browser integration"
          }
          return result
      except Exception as e:
          self.log_message("Error adding device: " + str(e))
          raise

• MCP_Server/server.py:687-695 (registration)

  The @mcp.tool() decorator registers the add_device function as an MCP tool.

  @mcp.tool()
  def add_device(ctx: Context, track_index: int, device_type: str) -> str:
      try:
          ableton = get_ableton_connection()
          result = ableton.send_command("add_device", {"track_index": track_index, "device_type": device_type})
          return f"Added device type '{result.get('device_type')}' to track '{result.get('track_name')}' - Note: {result.get('note')}"
      except Exception as e:
          logger.error(f"Error adding device: {str(e)}")
          return f"Error adding device: {str(e)}"