Presented herein are techniques to facilitate OpenRoaming integration into a Wireless Roaming Intermediary Exchange (WRIX) data-clearing and financial-settlement architecture. In one example, a method is provided that may include querying, by an application endpoint, a Domain Name System (DNS) server to determine support for a service for a domain; and obtaining, by the application endpoint from the DNS server, an explicit indication that one of: the service is not supported for the domain; or the service is proprietary and is supported for the domain.