Magento API Client is a PHP client library for the Magento SOAP API v2. It supports the Mage_Catalog, Mage_CatalogInventory, Mage_Checkout, Mage_Customer, Mage_Directory, Mage_Sales, Enterprise_CustomerBalance, Enterprise_CustomerGiftCard, Mage_GiftMessage, Mage_Core, and Store_View modules. The library uses namespaces and is based on composer tools.
Magento Blog is an extension that provides blog functionality for Magento. It features RSS integrated with the native RSS feed, multi-store RSS, the ability to switch the blog on/off blog for different stores, a latest posts widget, switchable category ID in the blog post URL, a switchable categories menu, tags, and an option to have comments per page.