I have also tried some of their examples just to get the IDs and such with POST Requests Online but even when I use their most basic API endpoint I get:
@Sir_Goodenough This is not an integration. It’s a rest API call as you can see from the yaml.
Yes… it should be in header. My bad.
I have tried both GET and POST, both in HA and outside of HA but none of them work.
And as I said before even endpoints like provinces/ that doesn’t need any parameters work.
Stats can only hold 255 characters so the value_template can’t be used. The data is in the attributes
So did you get a brand new API key just now or are you using a preexisting key? While the documentation doesn’t say anything about it, it would hardly be surprising if the v4 API required a new key and all old credentials were thrown out when the v3 API was deprecated…