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EU Data Act -- All data has to be free #602
Description
Hi All,
up to now Viessmann had been charging for some data points (what they call the "HVAC features (Advanced)").
Since Sept-12 (today) the EU Data Act is in force and they have to allow users to get all their data for free. Did anybody talk to Viessmann about this, already?
Activity
ignazhabibi commentedon Sep 12, 2025
They have changed their API docs in the Developer Portal. Almost all data points are now free which had to be paid in a premium subscription before.
https://developer.viessmann-climatesolutions.com/start/pricing.html
tpulatha commentedon Oct 1, 2025
Yes, there are quite some interesting APIs now free. For example: fuelCell.electricalEnergyConsumption.value
Is anyone looking into integrating new (useful) APIs?
CFenner commentedon Oct 4, 2025
It would be great if you share a recent data dump of your systems so we can integrate new data points. Create new files in https://github.com/openviess/PyViCare/tree/master/tests/response or update existing once.
ignazhabibi commentedon Oct 5, 2025
Made a PR with a new dump for Vitocal250A. For me most interesting new data points are thermal production values:
jonbk commentedon Oct 13, 2025
@CFenner I have a dump of the API from today for my Vitocal 200S heat pump. I've the v1 and v2 API versions. Witch one do I have to upload ?
I'm new in the area of domotic and my heat pump is brand new, sorry for beginner questions. I really wanna help :)
CFenner commentedon Oct 13, 2025
V2 would be great.