Postman can be utilized to build and test APIs. In the context of network programmability where an API is already constructed and ready to be followed, administrators and developers can utilize Postman to debug code and test REST calls that need to be made. Postman is available from https://www.getpostman.com/ and also offers a browser extension for Google Chrome, available within the Chrome Web Store.

There are similar easy-to-use tools like Insomnia and Paw that are popular as well.

REST Clients like Insomnia can be helpful in getting started with NX-API REST