# How to: access the Honeywell Evohome API documentation

https://blog.cynexia.com/more-evohome-stuff

Author: [Rob Aleck](https://blog.cynexia.com/pages/about) · https://github.com/mnbf9rca · https://www.linkedin.com/in/robertaleck/ · https://family-foqos.app/

Published: 2016-04-18
Categories: How-to


> Since writing this post, Honeywell has sold their products to Resideo, the new URL is: https://tccna.resideo.com/WebApi/Help/ApiIntroduction

After my last post, I did some more digging. I found that the API is actually documented at [https://tccna.honeywell.com/WebApi/Help/ApiIntroduction](<https://tccna.honeywell.com/WebApi/Help/ApiIntroduction>)

you need an APP ID to log in with (or OAuth app ID+secret).