quantra - A public API for quantitative finance made with Quantlib
CloudQuant - Crowd based algorithmic trading development and backtesing for stock market trading.
Gekko Plus - A tool that helps you invest smarter
QuantConnect - QuantConnect provides a free algorithm backtesting tool and financial data so engineers can design algorithmic trading strategies. We are democratizing algorithm trading technology to empower investors.
Algoriz - Algoriz uses artificial intelligence to build trading algorithms.
Quantreex - An automated trading platform that you let you create trading strategies intuitively.