All WISEBED functionality is provided via SOAP-based Web Services. This allows you to write WISEBED clients in literally any programming language that is capable of speaking Web Services according to the WS/I interoperability profile.
Below you find the links to the current official WSDL files. Feel free to browse the directories for other versions.
Although the API is pretty stable by now we continuously strive for improvements and feature enhancements. To further facilitate an open development process we recently decided to continue API development in a github repository. Feel free to file issues and feature requests in the issue tracker to help improving WISEBED.