tkinter-mcp-server
MCP server for launching, inspecting, and interacting with Tkinter GUI applications. Enables AI agents to automate Tkinter apps without code modifications.
README
tkinter-mcp
MCP server for inspecting and automating Tkinter GUI applications.
Overview
An MCP server that enables AI agents to launch, inspect, and interact with Tkinter applications. The server auto-injects an inspection agent via monkey-patching. No modifications to target apps required.
Tools
| Tool | Description |
|---|---|
launch_app |
Start a Tkinter app with inspection enabled |
is_connected |
Check if an app is currently connected |
get_ui_layout |
Get the widget tree as structured JSON |
view_application |
Capture a high-quality JPEG screenshot |
view_application_thumbnail |
Capture a small thumbnail screenshot |
get_window_info |
Get window position and dimensions |
click_widget |
Click a widget (left/right/middle, single/double) |
type_text |
Type text into Entry or Text widgets |
get_widget_by_text |
Find a widget by its text content |
focus_widget |
Set keyboard focus to a widget |
get_focused_widget |
Get the currently focused widget |
get_widget_value |
Get widget value (Entry, Text, Scale, Checkbox, etc.) |
set_widget_value |
Set widget value based on widget type |
get_widget_options |
Get options for Combobox or Listbox |
drag_widget |
Drag and drop between two widgets |
close_app |
Terminate the application |
Installation
uvx (Quick Start)
claude mcp add tkinter-mcp-server -- uvx tkinter-mcp-server
Note: Apps using PIL/ImageTk may have compatibility issues with uvx. Use pip install instead.
pip (Recommended for PIL apps)
pip install tkinter-mcp-server
claude mcp add tkinter-mcp-server -- tkinter-mcp-server
Claude Desktop
Add to your Claude Desktop configuration (~/Library/Application Support/Claude/claude_desktop_config.json on macOS):
{
"mcpServers": {
"tkinter": {
"command": "tkinter-mcp-server"
}
}
}
For uvx: use "command": "uvx" with "args": ["tkinter-mcp-server"]
How It Works
The server launches Tkinter apps through a custom launcher that patches tkinter.Tk.__init__. This injects an agent that communicates over a local socket, enabling thread-safe inspection and control of the GUI.
flowchart LR
A[MCP Client] <--> B[MCP Server]
B <--> C[Socket]
C <--> D[Agent]
D <--> E[Tkinter App]
Requirements
- Python 3.10+
- macOS, Windows, or Linux
License
MIT
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