QuantConnect is another open source, community-driven algorithmic trading platform that competes with Quantopian. It also provides an IDE to backtest and live-trade algorithmic strategies using Python and other languages.

QuantConnect also has a dynamic, global community from all over the world, and provides access to numerous asset classes, including equities, futures, forex, and cryptocurrency. It offers live-trading integration with various brokers such as IB, OANDA, and GDAX.