Right Edge Alphavantage plugin
This is my Alphavantage plugin for RightEdge. To use it you would want to first make yourself an account on https://www.alphavantage.co/. Then second install RightEdge from http://www.rightedgesystems.com/ and add the dll to the pluggins folder. With this you could then download stock price data to RightEdge and back test trading systems on it.