Use Halloy on your Mac from ChatGPT or Claude

• MacPartly

  Through the app's window, with macOS accessibility: BCD reads what Halloy 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

2026.10

Installs (last 365 days)

3,097 · #436 among Homebrew apps

Homepage

halloy.chat

Install

brew install --cask halloy

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

Can ChatGPT control Halloy?
On a Mac with BCD, yes, through the app's window: ChatGPT can open Halloy, 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 Halloy 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.