groundwork is a lightweight RESTful-like PHP framework that is designed to accept input and output in JSON. It is designed to quickly get a PHP backend communicating with a backbone.js, or equivalent, frontend.
This is the framework components of groundwork - these components should be obtained via downloading/cloning the groundwork app components found here: https://github.com/ndavison/groundwork and then running "composer install". This will get these groundwork framework components via composer for you.
groundwork is open-sourced software licensed under the MIT License.