The protocol speaks LoRaWAN, which isn't IP. The data will get sent via a distributed network, over IP (using MQTT), to a server of your choice. This application server (run by you or someone else) can then store the data, have a REST API endpoint, MQTT channel, or whatever service that runs there.

So how will Particle prevent name clashes better than Spark?

http://tmsearch.uspto.gov/bin/showfield?f=toc&state=4803%3Am...