mqtt-explorer

Install command: 
brew install --cask mqtt-explorer

Name: MQTT Explorer

https://mqtt-explorer.com/

/api/cask/mqtt-explorer.json (JSON API)

Cask code on GitHub

Current version: 0.3.5

mqtt-explorer is built for Intel macOS and so requires Rosetta 2 to be installed.
You can install Rosetta 2 with:
    softwareupdate --install-rosetta --agree-to-license
Note that it is very difficult to remove Rosetta 2 once it is installed.

Analytics:

Installs (30 days)
mqtt-explorer 222
Installs (90 days)
mqtt-explorer 589
Installs (365 days)
mqtt-explorer 2,177
Fork me on GitHub