BCD

Command-line tools › M

Run mu from ChatGPT or Claude

Tool for searching e-mail messages stored in the maildir-format. With BCD, ChatGPT, Claude and other AI apps can install and run mu on your own computer and read what it prints.

Works on

About mu

Version
1.14.4
License
GPL-3.0-or-later
Installs (last 365 days)
3,101 · #1,543 in Homebrew
Homepage
www.djcbsoftware.nl/code/mu
Install
brew install mu

Try asking

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

Depends on

fmt · glib · guile · xapian · gettext

Questions

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

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