CodeIgniter-REST Client is a CodeIgniter library which makes it easy to do use REST services/API's such as Twitter, Facebook and Flickr, wether they are public or hidden behind HTTP Basic/Digest.

1. PHP 5.1+
2. CodeIgniter 2.0.0+
3. cURL
4. CodeIgniter Curl library: http://getsparks.org/packages/curl/show

// Load the rest client spark
$this->load->spark('restclient/2.0.0');

// Load the library
$this->load->library('rest');

// Run some setup
$this->rest->initialize(array('server' => 'http://twitter.com/'));

// Pull in an array of tweets
$tweets = $this->rest->get('statuses/user_timeline/'.$username.'.xml');

This is clearly a VERY simple example and more can much more can be done with it. Take a look at the code to see about things like api_key() and other post/put/delete methods.