sloth

Install command: 
brew install --cask sloth

Name: Sloth

Displays all open files and sockets in use by all running processes

https://sveinbjorn.org/sloth

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

Cask code: sloth.rb on GitHub

Current version: 3.4

Requirements: macOS >= 10.13

Analytics:

Installs (30 days)
sloth 113
Installs (90 days)
sloth 307
Installs (365 days)
sloth 1,863