BCD

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Run mujs from ChatGPT or Claude

Embeddable Javascript interpreter. With BCD, ChatGPT, Claude and other AI apps can install and run mujs on your own computer and read what it prints.

Works on

About mujs

Version
1.3.11
License
ISC
Installs (last 365 days)
864 · #2,859 in Homebrew
Homepage
www.mujs.com
Install
brew install mujs

Try asking

“Install mujs with Homebrew and show me its version”
“Read mujs --help and give me three useful examples for my files”
“Update mujs and tell me what changed”

Used by

mpv · fancy-cat

Questions

Can ChatGPT run mujs on my computer?
Yes. With BCD on your Mac or Linux computer and command permission turned on for it, ChatGPT runs mujs there and reads the output. Claude and other apps with MCP connectors can too.

Do I need to install mujs first?
No. If Homebrew is installed, the AI can run brew install mujs for you.

Is it safe?
A new computer starts read-only: running commands is turned on per computer, and BCD reaches only the folders you allow.

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.

Program data from Homebrew, updated 2026-11-11. Installs are Homebrew's installs on request over the last 365 days.