WordPress at a glance
action is not described

xmlrpc_rsd_apis action-hook . WP 3.5.0

Add additional APIs to the Really Simple Discovery (RSD) endpoint.

Usage

add_action( 'xmlrpc_rsd_apis', 'action_function_name_686' );
function action_function_name_686(){
	// action...
}

Changelog

Since 3.5.0 Introduced.

Where the hook is called

In file: /xmlrpc.php
xmlrpc_rsd_apis
xmlrpc.php 55
do_action( 'xmlrpc_rsd_apis' );

Where in WP core the hook is used WordPress

xmlrpc.php 271
add_action( 'xmlrpc_rsd_apis', 'rest_output_rsd' );