Curlie is a lightweight command-line API testing tool, written in Go language, and uses curl in the backend. It is heavily inspired by httpie. You can install it on macOS using Homebrew, or Mac ports. You can also install it using Go package manager.
If you like the interface of HTTPie but miss the features of curl, curlie is what you are searching for. Curlie is a frontend to curl that adds the ease of use of httpie, without compromising on features and performance. All curl options are exposed with syntax sugar and output formatting inspired from httpie.
brew install curlie
sudo port install curlie
Windows and Linux