error registration


good afternoon I have a problem when I checked out this error “The Service ‘$metadata’ at FlightXML2 requires a username and password.” as could fix it?


Your account (pruebas) does not have an API key yet. You must register for a FlightXML API key first:

Additionally, that URL has garbage at the end of it. ("_vti_bin/ListData.svc/$metadata") The URL of the WSDL is simply