Packagist is the main Composer repository. It aggregates public PHP packages installable with Composer.
A simple and lightweight cURL library with support for asynchronous requests.
Feedable is a simple and lightweight library which allows you to easily create RSS and Atom feeds.
A framework agnostic implementation of Mozilla Persona, the cross-browser login system for the Web that's easy to use and easy to deploy.
A PHP class created to help you load, edit and save thumbnails from videos on Youtube.