PHP HTTP Framework for RESTful Web Service

Guzzle takes the pain out of sending HTTP requests and the redundancy out of creating web service clients. It’s a framework that includes the tools needed to create a robust web service client, including: Service descriptions for defining the inputs and outputs of an API, resource iterators for traversing paginated resources, batching for sending a large number of requests as efficiently as possible.

Requirements: PHP Framework
Demo: http://guzzlephp.org/
License: MIT License