iPhone API libraries for popular websites...

Question

What are (open source) libraries for iPhone that allow your user to interact with popular websites?

Twitter, Facebook, Myspace, Ebay etc...

Please post as much of the following as you can:

• the name of the website that the library is used to interact with
• the name of the library
• the author's name
• a link or download information
• the license type

Also, please try to follow my answer's layout for the sake of uniformity and easy of reading.

Answer 1

There are two Objective-C API wrappers for the Stack Exchange websites.

• http://stackapps.com/questions/19/msoengine-objc-library
• http://stackapps.com/questions/346/stackkit-an-api-framework-for-cocoa

They allow you to pull live information from any of the sites currently supporting the API. (Stack Overflow, Server Fault, Super User, Meta, StackApps)

You can find all necessary information regarding the APIs through the link.

Answer 2

Connects to: Twitter

Name: MGTwitterEngine

Author: Matt Gemmel

Download: Github or CocoaSourceCode.com

License: "Matt Gemmell / Instinctive Code Source Code License" (Custom, it's included in the download, read it.)