As other comments point out, there are significant benefits to having a streaming endpoint over a polling logic. It conserves resources, provides a more elegant

As other comments point out, there are significant benefits to having a streaming endpoint over a polling logic. It conserves resources, provides a more elegant representation with an events based interface to act on incoming data. A latent benefit of Heartbeat (which we will start emphasizing soon) is an ability to filter the incoming stream of events by the JSON data properties, so one can build nice IFTTT style code using any REST based APIs as sources. We are leaning towards creating a monthly and a longer-term pricing plan, but if your use-case is casual, then it will always be free. We are able support the current load of requests with a single worker process.