Getting started programming with the Viessmann API

Some code to receive info from the Viessmann boiler

Here is some code I have put together in order to receive basic info from the Viessmann boiler. I have used HTML and PHP. Viessmann boiler info Viessmann boiler info And the result is presented in the attached screenshot.

Problem with refresh token request

Hello, I'm trying to implement the Viessmann API into my Openhab3 environment.I read the documentation carefully and all steps until the "refresh token request" worked very well.My challenge now is that the refresh token call does not work. This is t...

Problems getting the access token

I am observing problems getting the access token as described in the developer portal. Intitially I am trying to get the token manually by http requests in order to understand the procedure, the final goal is to implement the whole procedure into ope...

Translation from English to German, can you help me?

Hello,The thermal baths not using the API are not simple to translate.So that we can all take advantage of them and include them in our developments, could you help me translate them?I am French and I am in difficulty. French > English > German. Info...

Vitodens specifications for gas consumption

Hi,For the boilers that do not provide data about gas consumption I am thinking to make an estimate based on the working hours multiplied with an indicator like gas consumption (max).Are they any specifications regarding the maximum gas consumption q...

Vitocal 200-a Online API

Guten Tag, bekomme ich die Vitocal 200-a mit der Online Api verbunden?Was benötige ich dazu?

refreshtoken - w/o access token - security

Hello, I just tried to get started with the API.I still hang at the auth process and don't understand why I can do this:curl -X POST "https://iam.viessmann.com/idp/v2/token" -H "Content-Type: application/x-www-form-urlencoded" -d "grant_type=refresh_...

How to develop a headless service login

Hello, I'm just trying to figure out, how to develop a reliable service login with your API.Actually it is not clear to me, how to do it WITHOUT a webpage - and this way a human interaction. (Maybe just write a web scrapper and fill in the values?) W...

To help get started.

Hi, A simple practice to "get started". Regards, CURLAUTH_BASIC, ); // Data Curl Call // $curl = curl_init(); curl_setopt_array($curl, $curloptions); $response = curl_exec($curl); curl_close($curl); echo($response);

Zeiten für Warmwasser und Heizung anpassen

Hallo zusammen, ich habe heute versucht die Zeiten für Wasser oder für die Heizung über die neue API zu ändern. Wenn ich setValue aufrufe, dann erhalte ich immer den nachfolgenden Fehler: "code":"500","reason":"INTERNAL_SERVER_ERROR","details":"entri...

Returns from an API request change order.

I'm using the (new) API for a couple of days now with such a request:"https://api.viessmann.com/iot/v1/equipment/installations/"+ installationID +"/gateways/" +gatewaySerial + "/devices/0/features?regex=heating.(sensors.temperature.outside%7Cdhw.(one...

Datapoints for Error flags

I recently had to switch to the new API to read out the operating data (temperatures, heat pump on/off, ...) from my Viessmann Heat Pump. One info that is important to me is to know if the heat pump is not working due to the demand of my electricity ...

What does materialNumber refer to in https://developer.viessmann.com/en/doc/service-documents/v3 ?

In my quest to get more information about E0 error I was trying to use this service-documents/v3 call. But I am missing an important parameter it looks like, what is materialNumber refering to? Could some examples be shared please. Thanks in advance ...

Hilfe bei Change End Date heating.operating.programs.holiday

Hallo Zusammen Ich komme leider nicht weiter, wenns darum geht, Werte, bspw Daten zu setzen. POST auf Booleans via Device feature command using name funktioniert gut (oneTimeCharge bspw.). Ich möchte gerne das End (und anfangs-) Date des Holiday Prog...

API Abfragen - Ersteinrichtung - ich komme nicht weiter...

Hallo zusammen und @MichaelHanna, ich nutzte bisher die Viessmann API um die Daten in mein SmartHome (Loxone) zu bekommen (über HTTP-Abfragen). Seit dem 15.07.21 ist das ja auf dem alten Weg nicht mehr möglich. Wie erstelle ich denn diesen Zugriffs T...

Endpoint missing and writing method not quiet clear

Hello,I have jumped my former client into the niew API. However, I have noticed that some endpoint are still missing. For instance, I wanted to get my slope and shift but didn't find the heating.curvefeatures.Moreover, it's not quite clear on how to ...

HowTo send a command via the API ? Or what is the correct syntax?

I'm trying to send a command via the API, for example I want to activate the feature "oneTimeCharge".I tried to send such POST request: https://api.viessmann-platform.io/iot/v1/equipment/installations/My-Installation_ID/gateways/My-Gateway_Serial/dev...

API: solar information available in vicare app but can't find it in API

Hi, I'm trying to use the viessmann API to read information about my installation.I can read a lot of information on the API like gateways, devices, temperatures, schedules and many otherfeatures of my vitodens 200 installation. I also want to read t...

API "Installation features" liefert leere Antwort

Hallo,der Versuch die Feature-Liste eine Installation zu erhalten:https://api.viessmann.com/iot/v1/equipment/installations/{installationId}/features liefert mir nur ein leeres Objekt zurück (natürlich mit gültigen Token):{ "data":[]} Mache ich was fa...

API usage questions (2)

After getting my API-Token (and refreshing it) I stumbled on the following questions: -Since the number of API-Calls are limited the use a single call for each requested value is not the intended way, how shall we concentate multiple requests in one ...

API usage questions

With the help of @MichaelHanna I was able to get my first API token. Thanks for that! Now I do have some follow up questions: Refresh Token:I noticed that the Refresh Token stays the same. Is that true for all the time?Regarding the documentation for...

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Some code to receive info from the Viessmann boiler

Problem with refresh token request

Problems getting the access token

Translation from English to German, can you help me?

Vitodens specifications for gas consumption

Vitocal 200-a Online API

refreshtoken - w/o access token - security

How to develop a headless service login

To help get started.

Zeiten für Warmwasser und Heizung anpassen

Returns from an API request change order.

Datapoints for Error flags

What does materialNumber refer to in https://developer.viessmann.com/en/doc/service-documents/v3 ?

Hilfe bei Change End Date heating.operating.programs.holiday

API Abfragen - Ersteinrichtung - ich komme nicht weiter...

Endpoint missing and writing method not quiet clear

HowTo send a command via the API ? Or what is the correct syntax?

API: solar information available in vicare app but can't find it in API

API "Installation features" liefert leere Antwort

API usage questions (2)

API usage questions

Problem with refresh token request

Vitodens specifications for gas consumption

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