Have been used Weather Underground free API for my personal use for the last couple of years. However, it has been broken since yesterday. Unable to retrieve weather data and only thing I got from the response is “invalidkey”. Then I logged in to my weather underground developer account, there was an error message: “the API key has been disabled manually”.
So, what is wrong? I only use this key to show local weather information in my place, designed to fetch information every 15 minutes from wunderground.com, way below the limits. (Free API can have 500 calls per day, 10 calls per minute.)
Later, I found there is a message appeared on the homepage of WeatherUnderground API says “we will no longer provide free API keys“. Also there is a post on the official community website says “Your subscriptions, and therefore access, will continue to work through 12/31/2018.” (https://apicommunity.wunderground.com/weatherapi/topics/end-of-service-for-the-weather-underground-api?topic-reply-list[settings][page]=4#topic-reply-list)
I also Googled, there were discussions about this since mid-2018. Looks like, they have planned for a long time. However, I searched my inbox, there is nothing sent from weather underground in the last year.
It is time switch to another weather API provider now.