BCD

Command-line tools › H

Run harlequin from ChatGPT or Claude

Easy, fast, and beautiful database client for the terminal. With BCD, ChatGPT, Claude and other AI apps can install and run harlequin on your own computer and read what it prints.

Works on

About harlequin

Version
2.17.0
License
MIT
Installs (last 365 days)
3,630 · #1,438 in Homebrew
Homepage
harlequin.sh
Install
brew install harlequin

Try asking

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

Depends on

apache-arrow · libpq · numpy · python@3.15 · unixodbc

Questions

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

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