Rackspace Cloud Java SDK by Rackspace is an open source multi-cloud toolkit for the Java platform that gives developers the ability to create applications that are portable across clouds while having the option to use cloud-specific features. Some of the services that this SDK supports are Auto Scale, Cloud Block Storage, Cloud DNS, and Cloud Databases.
Zootle, UK based hosted CRM provider, offers most of its features through the SalesSystemCRM API. From prospecting to order processing, the API allows developers to integrate an entire ecommerce solution with its existing website and apps. The SalesSystemCRM app suite already focused and tailored to budgets in the SME space. However, an API makes the CRM provider even more attractive to businesses strapped for IT resources.