I developed a native API client for macOS only. It’s called Burn Them APIs. This was my personal API client that I have been using for over 6 months, it was originally called Fuck Them APIs.
This is a 100% native macOS app written in SwiftUI and AppKit. It has no tracking, no analytics, no registrations, no third-party crash logs.
It has themes like Monokai, Nord, Solarized, etc and planning to add more themes (currently has 10 themes both light and dark mode) and features in the coming months.
I’m sorry if this is a paid app.