eBay has had such success with its Web services-based eBay Developers Program, that a range of new services and enhancements has been released. The program has grown by 50 percent since September 2004 to include 15,000 members and 1,000 live applications that generate 1.7 billion Web services calls per month.
Most significant is a unified API schema that supports software development across all platforms and languages. The unified API schema supports development in XML, SOAP, .NET and Java, and includes support for the eBay SDKs for Windows and Java. This new schema - called "eBay Web Services" - is based on the existing eBay SOAP schema currently used by developers building applications using SOAP or the eBay SDK for Java.