BCD

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Run efm-langserver from ChatGPT or Claude

General purpose Language Server. With BCD, ChatGPT, Claude and other AI apps can install and run efm-langserver on your own computer and read what it prints.

Works on

About efm-langserver

Version
0.0.57
License
MIT
Installs (last 365 days)
626 · #3,264 in Homebrew
Homepage
github.com/mattn/efm-langserver
Install
brew install efm-langserver

Try asking

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

Questions

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

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