# 21.25. `xmlrpc` — XMLRPC server and client modules

XML-RPC is a Remote Procedure Call method that uses XML passed via HTTP as a transport. With it, a client can call methods with parameters on a remote server (the server is named by a URI) and get back structured data.

`xmlrpc` is a package that collects server and client modules implementing XML-RPC. The modules are:

- `xmlrpc.client`
- `xmlrpc.server`