BCD

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Run udunits from ChatGPT or Claude

Unidata unit conversion library. With BCD, ChatGPT, Claude and other AI apps can install and run udunits on your own computer and read what it prints.

Works on

About udunits

Version
2.2.28
License
UCAR
Installs (last 365 days)
1,015 · #2,661 in Homebrew
Homepage
docs.unidata.ucar.edu/udunits/current
Install
brew install udunits

Try asking

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

Used by

nco

Questions

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

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