Postman - The Collaboration Platform for API Development
Teleconsole - Teleconsole is a free service to share your terminal session with people you trust.
StopLight - Stoplight is an API Design, Development, and Documentation platform that enables consistency, reusability, and quality in your API lifecycle, all with an easy, enjoyable developer experience.
Shell Notebook - MacOS Terminal, reimagined
Mockoon - Mock servers in seconds
TermHere - “Open Terminal Here” shortcut for Finder