Postman

Postman is the only complete API development environment, used by nearly six million developers and more than 200,000 companies worldwide. Postman is an elegant, flexible tool used to build connected software via APIs — quickly, easily and accurately. Postman is headquartered in San Francisco and has an office in Bangalore, where it was founded. Postman is privately held, with funding from Nexus Venture Partners. Learn more at http://www.getpostman.com or connect with Postman on Twitter via @postmanclient.