Draw on the expertise of Viessmann in climate solutions –

Be part of innovative development

Connect. Customize. Co-Create.

Our mission

The Viessmann Developer Portal

Viessmann paves the way for the co-development of home automation solutions. Via the Viessmann Developer Portal, you can join us on our way into the age of digitization. With smart home and remotely controllable heating appliances, Viessmann – as one of the oldest heating manufacturers leading german and international markets – forges ahead into a new era.

Join us by further develop your most creative, innovative and tool-driven talents. Connect your heating and ventilation systems. Customize parameters to save energy and reduce CO2 on a self-developed basis according to your own needs. Build apps for full control in housing automation. And last but not least: Be creative in co-creating your solutions together with us.

Together we can create living spaces for generations to come.

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Our APIs

Find the right API for you

Check out our API products, based on different use cases. Click on each element to get further information. Want to know how to use the different APIs? Make sure to check out our Getting Started section and the API documentation.
-> Getting Started
-> API documentation

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Ensure only relevant data is consumed with our Authentication API.

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Stay connected wih our IoT API.

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User Management

Support users with our User Management API.


Got feedback or suggestions? Let us know!

What do you think about the Developer Portal and what do you expect? Let us know:
-> Give us your feedback here