xmlrpc_rsd_apis WordPress Action Hook
Xmlrpc_rsd_apis is a WordPress hook that allows you to add additional RSD (Really Simple Discovery) APIs to your WordPress site. RSD is a standard that allows clients to discover the location of a site's XML-RPC interface. This hook gives you the ability to add multiple RSD APIs to your site, which can be useful if you want to offer different XML-RPC interfaces to different clients. You can use this hook to add RSD APIs for popular services like Pingbacks and trackbacks, as well as custom interfaces that you may have created yourself.
do_action( 'xmlrpc_rsd_apis' ) #
Add additional APIs to the Really Simple Discovery (RSD) endpoint.