surge@4

Install command: 
brew install --cask surge@4

Name: Surge

Network toolbox

https://nssurge.com/

Cask JSON API: /api/cask/surge@4.json

Cask code: surge@4.rb on GitHub

Current version: 4.11.2,2016,b4c9dad3472594b01ef3d8ac9b05c78e

Current version requires: macOS >= 10.13

Conflicts with casks:

surge 6.1.0,8010,18098a... Network toolbox Surge

Analytics:

Installs (30 days)
surge@4 7
Installs (90 days)
surge@4 14
Installs (365 days)
surge@4 60