Zipline is a Pythonic event-driven algorithmic trading library that serves as a powerful backtesting system

StrategyQuant X is a powerful algorithmic trading platform that uses genetic programming and machine learning to automatically generate trading strategies without requiring programming knowledge

PyBroker is a free, open-source Python framework specifically designed for developing algorithmic trading strategies with a strong emphasis on machine learning integration

BuildAlpha offers a no-code algorithmic trading platform that uses genetic programming to automatically discover trading strategies. The software can create hundreds of algorithmic trading strategies at the click of a button, requiring no programming knowledge from users.

QuantConnect is an open-source, cloud-based algorithmic trading platform that serves over 300,000 quants from more than 170 countries. The platform is powered by the LEAN algorithmic trading engine, which processes over 15,000 backtests daily.

Twelve Data is a comprehensive financial data platform that provides institutional-grade market data through a unified API infrastructure. The platform covers nearly one million instruments across multiple asset classes.

AlgoSeek is a leading historical intraday market data provider offering institutional-grade data products across multiple asset classes. The platform provides comprehensive coverage including equities, ETFs, futures, options, forex, and cryptocurrencies.