Changing wether API?
Can the weather API be changed? I have an API key for weatherunderground, but dont know which url to use, and do I only have to put it in the config file?
I’m not really sure I understand your question.
What weather module are you trying to use?
If you’re talking about the default weather modules, they only work with keys for http://www.openweathermap.org
But you can remove those from your config and add MMM-Wunderground instead following its instructions: https://github.com/RedNax67/MMM-WunderGround
https://github.com/cowboysdude/MMM-NOAA also uses the Weather Underground API and it seems to be a very popular module with excellent support from the author