XML-RPC is Extensible Markup Language-Remote Procedure Call. A Remote Procedure Call (RPC) allows you to call (or request) another application and expect that application to honor the request (answer the call). So, XML-RPC allows a user (or developer) to send a request, formatted in XML, to an external application.
- External links: Dave Winer’s XML-RPC for Newbies, XML-RPC Home Page, Apache XML-RPC, XML-RPC for PHP Homepage, XML-RPC at Wikipedia