There is some significant work being done in the WinkHub space. Offering to implement the Wink Hub 2 bindings
Since Wink supports Zigbee, and you probably don’t need anything SUPER responsive (as it uses webbased API right now), this may be a good solution to keep all in openhab with Keen vents? I don’t know if the binding will work, but i think if Wink knows about it, then it should work with openhab since the binding just finds items on the WinkAPI. Perhaps worth exploring.