I recently sent ecobee a request of a local API for use with Hubitat. Their answer suggested they might even consider it, replying
The solution that we have currently for local-access of your thermostat using Apple's HomeKit but I understand that this solution might not be ideal for all setups.
So if there are more folks wishing for such a resource it might help if you let ecobee know.
The answer provided suggests they currently provide a HomeKit local solution but no other.
My goal for this post is to motivate others to contact ecobee with the same local request for Hubitat. Hoping to show there are more folks out there that want a Hubitat Local API.
Yes that has been their standard response to me also. I have requested local access to their API since one of the homes I have been supporting has absolutely no internet access and thus the Ecobee API cannot be used. Even though their Ecobee works after setup though their a cellular hotspot it just works but it doesn't integrate with the home automation controller (Vera).
I submit this request say every 6 months just to see of the story has changed. A while back there was an article about why HomeKit only and I can't find it anymore and one of the reasons was that there was some "exclusivity" in having the "HomeKit" branding on their box.