Since many of the Windows 7 desktop gadgets no longer work, I wrote one to show me the current prices of my stock holdings. I use the twelvedata.com API for the data and my program is configured to access the API not more than several hundred times per day (which assumes my computer is on for the entire active stock day), so it is not terribly demanding.

The API worked without issue for several years, but a while ago, it stopped showing the value for the indices DJI, IXIC, and SPX. Today (and I checked this by entering the API URL into my browser), the twelvedata.com API indicated that these index strings are not valid.

Question: Can anyone suggest a free API that will provide the current-ish value for these indices about 50 times per day? Not sure that this is the proper forum in which this question should be asked, and if you have any ideas of better forums where this can be asked, please share.