Freqtrade: Free, open source crypto trading bot (github.com)

Freqtrade is a free, open-source crypto trading bot written in Python that bundles a full developer-focused toolkit for building, testing and running algorithmic strategies. It supports most major centralized exchanges (community-confirmed ones include Binance, Bybit, Kraken, OKX, Gate.io and others) and can be managed via a built-in WebUI or Telegram. Core features include dry-run trading, backtesting with OHLCV data, plotting, persistence via SQLite, hyperparameter optimization (hyperopt), lookahead/recursive-analysis checks, and machine‑learning–based strategy optimization and adaptive modeling via FreqAI that can self-train on live exchange data. This matters to the AI/ML community because Freqtrade provides an accessible, reproducible platform to prototype, evaluate and iterate ML-driven trading strategies with real market data and standard safety tools (dry-run, backtesting, performance reports). It’s cross-platform (Python 3.11+), Docker-ready, exposes many CLI modules (backtesting, hyperopt, list-freqaimodels, webserver, etc.), and encourages community contributions (develop vs stable branches, Discord and GitHub workflows). Important caveats: it’s provided for educational use only, authors disclaim trading responsibility, and users should ensure accurate system clock (NTP), understand risks, and have Python skills before deploying live.