Hi @greynomad50, I think It should be enough with the Thinger.io API to communicate with Alexa. Not sure it is necessary an intermediate middleware here. Let me know what are the expected data flows from/to Alexa, and maybe I can help here.
However, I think that Node red can be quite useful for other use cases, like reacting to devices events, triggering alarms, interfacing with other protocols, and so on. All this server side that cannot be done right now with Thinger.io. Some weeks ago I planned to develop a Node Red module for easily integrating Thinger.io devices in Node red environments. As I see in the developers docs, it should be relatively easy to do