We have extensive experience in the Restful, SOAP-based; OAuth based APIs and Web Services. Having worked and after creating many projects/applications about APIs, there are far too many to list all. We are proficient in integrating and customizing the following APIs to any web application. • Twitter API (Restful and OAuth) • Custom OAuth Integrations • PayPal Integration • Authorize.net Integration • SOAP-based APIs • Any other API on the Internet. • JSON (JavaScript) based APIs • SOAP (Object) based APIs • XML-based APIs • Restful APIs