boxcryptor

Install command: 
brew install --cask boxcryptor

Name: Boxcryptor

Tool to encrypt files and folders in various cloud storage services

https://www.boxcryptor.com/en/

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

Cask code: boxcryptor.rb on GitHub

Current version: 3.13.680

Current version requires: macOS >= 10.15

Versions:

Apple Silicon big sur 2.46.1668
Intel big sur 2.46.1668
catalina 2.46.1667

Analytics:

Installs (30 days)
boxcryptor 8
Installs (90 days)
boxcryptor 28
Installs (365 days)
boxcryptor 129
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