MCP

Let your AI build your desktop.

Kakuchi speaks MCP, an open standard for connecting AI apps to other apps. Connect Claude, Codex or Cursor and ask for a widget in plain words. It's built, checked against a real screenshot and placed on your desktop.

Things you can ask

“Make a widget that shows my battery, CPU and the next calendar event, in a glassy style.”
“The weather widget is too wide. Make it a small square and put it on my desktop.”
“Show me what widgets I have, then remove the ones I haven't used.”
“Switch my clock widget to 24-hour time and a dark theme.”
“Build a focus timer that lives in the notch, and show me a screenshot before adding it.”

Why connect it

Describe it, get it: Your assistant writes the widget, sees a real screenshot of it, fixes what looks off and places it on your desktop.
Change things by asking: Colours, cities, symbols, themes. Settings change without rewriting any code.
Runs on your Mac: The server is a local process your AI app starts. Nothing is hosted, and there's no account.
You stay in control: Widgets that run commands on your Mac wait for your approval before they're added.
Works with your tools: Claude Desktop, Claude Code, Codex, Cursor, or anything that speaks MCP.
No setup to maintain: Kakuchi opens when your AI app asks for it. There's no switch to turn on.

Add Kakuchi to your AI app

Install Kakuchi and move it to Applications.
Pick your AI app and copy its setup below.
Ask for a widget. Kakuchi opens by itself when needed.

claude mcp add kakuchi --transport stdio -- "/Applications/Kakuchi.app/Contents/MacOS/Kakuchi" --mcp

Run this once in Terminal.

If Kakuchi lives somewhere other than Applications, use the path shown in Kakuchi › Settings › MCP.

15 tools

Learn

read_docs
The widget guide, API reference and example widgets.
list_sources
Every native data source a widget can use.
sample_source
A live reading from a source, such as CPU or battery.

Build

create_widget
Create a widget and get a screenshot and any errors back.
update_widget
Change an existing widget's code.
preview_widget
Render a widget again without installing it.
duplicate_widget
Make a second copy with different settings.
delete_widget
Delete a widget you made.

Inspect

list_widgets
Every installed widget and where it is.
read_widget
The code of a widget.
get_widget_settings
What a widget lets you change, and its current values.

Control

add_to_desktop
Place a widget on the desktop.
remove_from_desktop
Take a widget off the desktop.
set_widget_settings
Change a widget's settings.
set_theme
Apply a theme to a widget.

Security

Everything stays on your Mac. The AI app talks to Kakuchi through a local process and nothing is sent to us.
Widgets an AI makes are saved in an “AI Widgets” folder you can open and read.
A widget that wants to run commands on your Mac asks you first.
What your AI app sends to its own provider is covered by that provider's terms.

Questions? support@kakuchi.app