BCD

Command-line tools › B

Run black from ChatGPT or Claude

Python code formatter. With BCD, ChatGPT, Claude and other AI apps can install and run black on your own computer and read what it prints.

Works on

About black

Version
26.10.1
License
MIT
Installs (last 365 days)
28,147 · #452 in Homebrew
Homepage
black.readthedocs.io/en/stable
Install
brew install black

Try asking

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

Depends on

python@3.15

Questions

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

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