Open Source



QuantConnect has a large open source community driving innovation in the LEAN Algorithmic Trading Engine. We have collected relevant tutorials here for community members learn from and use with their local installations of LEAN.

100 Debugging Python

Explore different methods to debug python algorithms.

102 Using the API File Provider

Configuring your installation to pull financial data from the QuantConnect website repository.

103 Lean Report Creator

Create polished professional reports from backtest results.

201 Generating Random Data

Generate random data to use for backtesting with LEAN

301 Brokerage Development Guide

Guide to implementing your own brokerage in LEAN.

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