The Viessmann Developer Portal is an open development platform that provides all of the tools you need to bring your ideas to life.
Into a new era
As one of the world's leading manufacturers of heating devices, Viessmann has a wealth of experience in the industry. Our Developer Portal extends this knowledge so that you can create your own Smart Home solutions.
Integrate, visualise and monitor your data
A whole range of creative, innovative, individual solutions are possible. Connect your heating and ventilation systems with each other. Adjust parameters for energy saving and CO2 reduction according to your own needs - on a completely self-developed basis! Design apps for complete control in the field of home automation. Together we can design living spaces for generations to come.
To log in to the Developer Portal, you will need a Viessmann account. If you already have a ViCare account then you can use these same credentials. If you do not yet have a ViCare account, then please register here:
Our suite of APIs enables developers to easily build great solutions. If you are not sure which API is suitable for your case, you can find guidance in our API products section to see the APIs already available on this portal.
Getting the API key is easy. Once you have logged in to the Developer Portal, you can go on “My Dashboard” in the navigation. Here you find a tile called “Your clients” where you can create your own personal API key. Click on “+ Add” and type a name for your client, as well as the redirect URI.
Before you can make your first API call, you must obtain an access token. For security reasons, we have implemented the OAuth2 process that provides you with an access token based on your API key and API secret: Please take a look at our authentication section in the API documentation.