I am working hard on adding a REST interface to the VSCP daemon this week. Formats supported are plain text, CSV, XML, JSON and JSONP and you can send event/read events/write variables/read variables and read tabular data. I personally prefer the old tcp/ip interface but I know many will like this interface better. Also from this version SSL will be available as an alternative to the web/rest/websocket/tcp/ip interfaces in addition to the password and remote machine validation mechanism previously available. Making this the most secure solution available.
Hard question to answer especially when you love cats as we do.