Use Moonfin on your Mac from ChatGPT or Claude

• MacPartly

  Through the app's window, with macOS accessibility: BCD reads what Moonfin shows and presses buttons, types and picks menus. How far it goes depends on the app. macOS asks once to allow it.

• WindowsNo

  BCD controls app windows only on a Mac.

• LinuxNo

  BCD controls app windows only on a Mac.

Version

3.0.0

Installs (last 365 days)

335 · #1,461 among Homebrew apps

Needs

macOS 15 or later

Homepage

moonfin.io

Install

brew install --cask moonfin

“Open Moonfin and tell me what is on its screen”
“Install Moonfin with Homebrew”
“Quit Moonfin and update it to the latest version”

Can ChatGPT control Moonfin?
On a Mac with BCD, yes, through the app's window: ChatGPT can open Moonfin, read the buttons and text it shows, press buttons, type and pick menu items. How far that goes depends on how much of its window Moonfin exposes to macOS accessibility.

Does this work on Windows?
No. BCD controls app windows only on a Mac. On Windows and Linux it works with files and commands.

Is it safe?
A new computer starts read-only. Controlling the screen and apps is turned on per computer, and macOS asks once before BCD may control apps.

Try it on your computer

BCD connects ChatGPT, Claude and other AI apps to your own Mac, Windows or Linux computer. One computer is free, with 20,000 tool calls a month and no card.