XML-RPC is a format devised by Userland Software for achieving remote procedure call via XML using HTTP as the transport. XML-RPC has its own web site, www.xmlrpc.com

This collection of PHP classes provides a framework for writing XML-RPC clients and servers in PHP.

Main goals of the project are ease of use, flexibility and completeness.

The original author is Edd Dumbill of Useful Information Company. As of the 1.0 stable release, the project has been opened to wider involvement and moved to SourceForge.

A list of XML-RPC implementations for other languages such as Perl and Python can be found on the www.xmlrpc.com site.