Walter: Yes, the rank_ranks endpoint in the API can be used to return the ranks as well as the values for other formulas like future returns.
jlittleton: Thanks for running that test. You are correct that the datauniverse endpoint is returning weekly data. I didnt take screenshots of my results, so I dont know exactly what I tested. I know I saw the values (FRank results) change slightly day to day, but I cant reproduce that now. The lead API developer is out next week, but I will talk with him when he gets back to see what the options are regarding returning daily data from the API.