There is a Chamberlin/Liftmaster MyQ wifi garage door built in. The MyQ app talks to the MyQ server and triggers the garage door. Not sure exactly the protocol, but it does work. I have it. It needs the app and there is a login requirement (thankfully) for security. But, from what I can tell there is no API. Will Tesla support this?
It looks like Chamberlin also has a kit that connects to any existing door. Have a module on the door to tell if it is open/closed and something that triggers the button. The box connects to the home wifi and talks to the MyQ server. this is also supported by the MyQ app.
If I look at amazon or google - there are Refoss brand, AGSHOME brand, NEXX, Smart, eKyro, MOes. Lets not forget GarageMate, GRISCO, NIRO, and then Genie has their own protocol. The list goes on and on. Some have a client server model. Some have a webpage on the local network.
Plus, there are numerous adurino based DIY solutions.
So, when Tesla says "sure, we will add a wifi garage door button" what exactly does that mean?