This is a paper trader for an ESP32. I made it to test out trading models without any emotional component to it.
It uses AlphaVantage to get information and Alpaca to make the trades.
The api is kind of hard-coded to use Alpaca and AlphaVantage, my trading model doesn't go over the API limits for either but they do come pretty close(if you recompile within a certain window, it will go over).
Uses TALib and ArduinoJson