I found that there are two possible answers: * good old tools - curl, Emacs plugins (restclient.el is pretty nice), Vim plugins; * and Postman/Insomnia altern

I found that there are two possible answers: * good old tools - curl, Emacs plugins (restclient.el is pretty nice), Vim plugins; * and Postman/Insomnia alternatives - restfox.dev, hoppscotch.io and httpie.io (my personal preference so far) and I found this group to be the most volatile (I personally has moved from Postman to Insomnia).