BCD

Command-line tools › F

Run fizz from ChatGPT or Claude

C++14 implementation of the TLS-1.3 standard. With BCD, ChatGPT, Claude and other AI apps can install and run fizz on your own computer and read what it prints.

Works on

About fizz

Version
2026.10.26.00
License
BSD-3-Clause
Installs (last 365 days)
40,683 · #343 in Homebrew
Homepage
github.com/facebookincubator/fizz
Install
brew install fizz

Try asking

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

Depends on

fmt · folly · glog · libsodium · openssl@4 · zstd

Used by

fbthrift · wangle · mvfst · proxygen

Questions

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

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