PayPal today expanded its Web services offering by introducing a new software development kit (SDK) to help developers more easily integrate with the PayPal platform. Available as a free download to members of the PayPal Developer Network, the SDK supports PayPal's application programming interfaces (APIs), including seven new APIs required to integrate PayPal's new product for small to medium sized businesses, Website Payments Pro.

Website Payments Pro features two payment functions that require Web services integration with the PayPal platform: Express Checkout and Direct Payments. It also features a series of new tools that make it easier for merchants to authorize and settle payments according to their own business requirements. The new SDK provides developers with access to the seven new APIs that support integration of these products: SetExpressCheckout, GetExpressCheckoutDetails DoExpressCheckoutPayment, DoDirectPayment, DoReauthorization, DoVoid, and DoCapture.

"As more SMBs choose PayPal as their online payment method, they will need developers to help them integrate the required APIs," said Dave Nielsen, manager of PayPal Developer Network (PDN). "PayPal gives developers and solution providers a tremendous business opportunity to integrate merchants into the PayPal platform

and also to build new, innovative e-commerce applications that don't yet exist."

The PayPal SDK can be downloaded at http://www.paypal.com/sdk. It includes sample code and applications for PayPal Web Services. PayPal Web Services are based on open standards, supporting Simple Object Access Protocol (SOAP) and Web Services Description Language (WSDL).

The PayPal Developer Network (PDN) enables merchants and developers to quickly and easily add eCommerce capabilities to their Web sites and applications. PDN provides its more than 300,000 members with a wide range of tools and resources for developing solutions that incorporate PayPal's secure and cost-effective payment service. For more information and to join PDN, visit http://www.paypal.com/pdn.

About PayPal
PayPal, an eBay company, enables any individual or business with an email address to securely, easily and quickly send and receive payments online. PayPal's service builds on the existing financial infrastructure of bank accounts and credit cards and utilizes the world's most advanced proprietary fraud prevention systems to create a safe, global, real-time payment solution. Founded in 1998, PayPal has more than 71.8 million accounts and is available to users in 56 countries around the world. More information about the company can be found at https://www.paypal.com.