I’m not a developer myself but I’d like to explain what I’ve tried so far. It doesn’t work for me yet. Maybe it helps others and we get the solution from @dotKrad closer.
The first file is the bring.py as custom component. The second then saved as custom card: bring.js
I got the List-ID from the developer tools of Chrome. For this a picture:
If I set this one here I get a value back:
https://api.getbring.com/rest/bringlists/{LIST_ID}/details
I come from Germany so I had to adapt the following:
https://web.getbring.com/locale/articles.de-DE.json (instead of en-US) --> works
With the YAML entry I started like a noob with :
sensor:
- platfrom: bring
It doesn’t work yet but I would like to thank @dotKrad for the files and the support.