BCD

Command-line tools › L

Run lemon from ChatGPT or Claude

LALR(1) parser generator like yacc or bison. With BCD, ChatGPT, Claude and other AI apps can install and run lemon on your own computer and read what it prints.

Works on

About lemon

Version
3.54.1
License
blessing
Installs (last 365 days)
779 · #2,995 in Homebrew
Homepage
www.hwaci.com/sw/lemon
Install
brew install lemon

Try asking

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

Questions

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

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