MCP Server

The MCP Server LOP acts as a server that exposes Python functions from a DAT as “tools” that can be called by AI agents and other external applications using the Model Context Protocol (MCP). This allows you to create custom, remotely-callable APIs directly within your TouchDesigner project.

It leverages the fastmcp library to handle the server logic, simplifying the process of creating MCP-compatible tools. It can communicate over stdio or streamable-http, making your TouchDesigner functions accessible to a wide range of MCP clients.

What is MCP?

Model Context Protocol (MCP) is an open standard designed to create a unified way for AI agents to connect with and use external tools, data, and services. The mcp_server LOP makes TouchDesigner a part of this ecosystem.

Requirements

• Python Packages:
  • fastmcp: The core library for the MCP server.
  • aiohttp: Required for the streamable-http transport mode.
• ChatTD Operator: Required for dependency management (installing packages) and asynchronous operations.

Parameters

Page: MCP Server

Status (Status) op('mcp_server').par.Status

Default:

"" (Empty String)

Start Server (Startserver) op('mcp_server').par.Startserver

Default:

None

Stop Server (Stopserver) op('mcp_server').par.Stopserver

Default:

None

Restart Server (Restartserver) op('mcp_server').par.Restartserver

Default:

None

Running (Running) op('mcp_server').par.Running

Default:

false

Transport (Transport) op('mcp_server').par.Transport

Default:

stdio

Host (Host) op('mcp_server').par.Host

Default:

"" (Empty String)

Port (Port) op('mcp_server').par.Port

Default:

0

Server Code DAT (Serverdat) op('mcp_server').par.Serverdat

Default:

None

Edit (open external) (Editserverdat) op('mcp_server').par.Editserverdat

Default:

None

View (View) op('mcp_server').par.View

Default:

server_dat

Page: Install / Debug

Status (Status2) op('mcp_server').par.Status2

Default:

"" (Empty String)

Install Dependencies (Installdeps) op('mcp_server').par.Installdeps

Default:

None

Check Dependencies (Checkdeps) op('mcp_server').par.Checkdeps

Default:

None

Page: About

Bypass (Bypass) op('mcp_server').par.Bypass

Default:

false

Show Built-in Parameters (Showbuiltin) op('mcp_server').par.Showbuiltin

Default:

false

Version (Version) op('mcp_server').par.Version

Default:

"" (Empty String)

Last Updated (Lastupdated) op('mcp_server').par.Lastupdated

Default:

"" (Empty String)

Creator (Creator) op('mcp_server').par.Creator

Default:

"" (Empty String)

Website (Website) op('mcp_server').par.Website

Default:

"" (Empty String)

ChatTD Operator (Chattd) op('mcp_server').par.Chattd

Default:

None