xbar

Install command: 
brew install --cask xbar

Name: xbar

View output from scripts in the menu bar

https://xbarapp.com/

Cask JSON API: /api/cask/xbar.json

Cask code: xbar.rb on GitHub

Current version: 2.1.7-beta

Requirements: macOS >= 10.15

Analytics:

Installs (30 days)
xbar 224
Installs (90 days)
xbar 653
Installs (365 days)
xbar 2,450