They were shut down. I remember building many a widget that would pull information from Yahoo's simple and thorough APIs, and they were all sunset sometime betw

They were shut down. I remember building many a widget that would pull information from Yahoo's simple and thorough APIs, and they were all sunset sometime between 2010 and 2015. Their stock API was unique in that it was one of the few with good data on almost any ticker. Most stock tracking APIs require licenses to use, or have terrible latency. Similar with weather APIs now.