Your link is wrong it requires the API version  E.g /fapi/rest/4_1/application.wadl  4_1 is current version for 4.1.x RP and RP4VM 4.2 and 4.3.  Sent from my iPhone
Trying to do some API interaction with recoverpoint and get:  [IMAGE]  Running version 4.1.2
API Access 404