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QuantConnect

Python and C# algorithmic trading platform

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  1. Lean Lean Public

    Lean Algorithmic Trading Engine by QuantConnect (Python, C#)

    C# 11.7k 3.6k

  2. lean-cli lean-cli Public

    CLI for running the LEAN engine locally and in the cloud

    Python 244 129

  3. Research Research Public

    Open sourced research notebooks by the QuantConnect team.

    Jupyter Notebook 622 181

  4. Documentation Documentation Public

    QuantConnect Wiki Style Documentation Behind QuantConnect

    HTML 198 163

  5. IBAutomater IBAutomater Public

    Automates IB Gateway start, stopping and restarting.

    Java 118 49

  6. Tutorials Tutorials Public

    Jupyter notebook tutorials from QuantConnect website for Python, Finance and LEAN.

    Jupyter Notebook 608 235

Repositories

Showing 10 of 88 repositories
  • Lean Public

    Lean Algorithmic Trading Engine by QuantConnect (Python, C#)

    QuantConnect/Lean’s past year of commit activity
    C# 11,735 Apache-2.0 3,575 252 (15 issues need help) 6 Updated Jul 7, 2025
  • Lean.Brokerages.Tastytrade Public

    Tastytrade Brokerage Implementation

    QuantConnect/Lean.Brokerages.Tastytrade’s past year of commit activity
    C# 1 0 0 0 Updated Jul 7, 2025
  • Lean.Brokerages.Alpaca Public

    Alpaca Brokerage Implementation

    QuantConnect/Lean.Brokerages.Alpaca’s past year of commit activity
    C# 9 13 2 0 Updated Jul 7, 2025
  • Lean.Brokerages.TradeStation Public

    TradeStation Brokerage Plugin

    QuantConnect/Lean.Brokerages.TradeStation’s past year of commit activity
    C# 13 12 3 0 Updated Jul 7, 2025
  • Lean.DataSource.FactSet Public

    Implementation to the public FactSet Data API.

    QuantConnect/Lean.DataSource.FactSet’s past year of commit activity
    C# 3 4 0 0 Updated Jul 7, 2025
  • Lean.DataSource.CoinAPI Public

    LEAN CoinAPI Data Source

    QuantConnect/Lean.DataSource.CoinAPI’s past year of commit activity
    C# 0 Apache-2.0 3 0 0 Updated Jul 7, 2025
  • Lean.DataSource.AlphaVantage Public

    LEAN Alpha Vantage Data Source

    QuantConnect/Lean.DataSource.AlphaVantage’s past year of commit activity
    C# 5 Apache-2.0 8 0 0 Updated Jul 7, 2025
  • Lean.DataSource.IQFeed Public

    LEAN IQFeed Data Source

    QuantConnect/Lean.DataSource.IQFeed’s past year of commit activity
    C# 2 7 2 0 Updated Jul 7, 2025
  • Lean.DataSource.ThetaData Public

    Integration with ThetaData for Options History and Live Streaming

    QuantConnect/Lean.DataSource.ThetaData’s past year of commit activity
    C# 13 Apache-2.0 10 3 0 Updated Jul 7, 2025
  • Lean.DataSource.Polygon Public

    LEAN Polygon Data Source

    QuantConnect/Lean.DataSource.Polygon’s past year of commit activity
    C# 4 13 1 0 Updated Jul 7, 2025

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