upload document without OTCSTICKET - (for auth we use applicationKey)

Hi,
we have requirement upload document to particular location based on some metadata from REST Call. we will use application key to authentication instead of OTCSTICKET. currently I can see similar one "api/v1/ping" not required otcsticket. I am bit confused to create new RH like ping, csnode has explained how to add custom action for node, can you please help to create new RH like ping.

Thanks
Appa.