Postman features include:
Powerful, simple to use GUI
Saved history of API requests
Unlimited collections, environments, tests, and sharing
Automated testing with collection runner
Web-viewable, detailed API documentation
Flexible API monitoring, for uptime, performance, and accuracy
Mock servers, to support split-stack development
Note on Permissions:
The “Your data on all websites” permission is required to send a request to a domain. It's not used for anything else by Postman.
View the complete Postman EULA at: https://www.getpostman.com/licenses/postman_base_app
Follow Us:
Twitter: http://www.twitter.com/postmanclient
Facebook: http://www.facebook.com/getpostman
Join our Slack community: https://www.getpostman.com/slack-invite