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@QuantConnect

QuantConnect

Python and C# algorithmic trading platform

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  1. Lean Lean Public

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

    C# 15.9k 4.2k

  2. lean-cli lean-cli Public

    CLI for running the LEAN engine locally and in the cloud

    Python 283 151

  3. Research Research Public

    Open sourced research notebooks by the QuantConnect team.

    Jupyter Notebook 699 196

  4. Documentation Documentation Public

    QuantConnect Wiki Style Documentation Behind QuantConnect

    HTML 229 181

  5. IBAutomater IBAutomater Public

    Automates IB Gateway start, stopping and restarting.

    Java 128 57

  6. Tutorials Tutorials Public

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

    Jupyter Notebook 669 242

Repositories

Showing 10 of 92 repositories
  • Lean.Brokerages.dYdX Public

    dYdX Brokerage Plugin

    QuantConnect/Lean.Brokerages.dYdX’s past year of commit activity
    C# 1 2 0 0 Updated Jan 19, 2026
  • Lean.Brokerages.Tastytrade Public

    Tastytrade Brokerage Implementation

    QuantConnect/Lean.Brokerages.Tastytrade’s past year of commit activity
    C# 7 5 0 0 Updated Jan 19, 2026
  • Lean.Brokerages.Alpaca Public

    Alpaca Brokerage Implementation

    QuantConnect/Lean.Brokerages.Alpaca’s past year of commit activity
    C# 10 16 5 0 Updated Jan 19, 2026
  • Lean.Brokerages.TradeStation Public

    TradeStation Brokerage Plugin

    QuantConnect/Lean.Brokerages.TradeStation’s past year of commit activity
    C# 16 14 4 0 Updated Jan 19, 2026
  • Lean.DataSource.FactSet Public

    Implementation to the public FactSet Data API.

    QuantConnect/Lean.DataSource.FactSet’s past year of commit activity
    C# 4 5 0 0 Updated Jan 19, 2026
  • Lean.DataSource.CoinAPI Public

    LEAN CoinAPI Data Source

    QuantConnect/Lean.DataSource.CoinAPI’s past year of commit activity
    C# 2 Apache-2.0 3 0 0 Updated Jan 19, 2026
  • Lean.DataSource.AlphaVantage Public

    LEAN Alpha Vantage Data Source

    QuantConnect/Lean.DataSource.AlphaVantage’s past year of commit activity
    C# 8 Apache-2.0 10 0 0 Updated Jan 19, 2026
  • Lean.DataSource.IQFeed Public

    LEAN IQFeed Data Source

    QuantConnect/Lean.DataSource.IQFeed’s past year of commit activity
    C# 3 8 1 0 Updated Jan 19, 2026
  • Lean.DataSource.ThetaData Public

    Integration with ThetaData for Options History and Live Streaming

    QuantConnect/Lean.DataSource.ThetaData’s past year of commit activity
    C# 20 Apache-2.0 12 3 0 Updated Jan 19, 2026
  • Lean.DataSource.Polygon Public

    LEAN Polygon Data Source

    QuantConnect/Lean.DataSource.Polygon’s past year of commit activity
    C# 8 15 1 0 Updated Jan 19, 2026