I don’t think it’s a public API but you can easily hack the Eufy 30C. I have been using mine with home assistant automations for a few years now. It’s cheap but

I don’t think it’s a public API but you can easily hack the Eufy 30C. I have been using mine with home assistant automations for a few years now. It’s cheap but I love it and I’m honestly considering buying another one. It has gotten a little noisy after 3 years.