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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# 17.9k 4.6k

  2. lean-cli lean-cli Public

    CLI for running the LEAN engine locally and in the cloud

    Python 290 158

  3. Research Research Public

    Open sourced research notebooks by the QuantConnect team.

    Jupyter Notebook 725 198

  4. Documentation Documentation Public

    QuantConnect Wiki Style Documentation Behind QuantConnect

    HTML 235 187

  5. IBAutomater IBAutomater Public

    Automates IB Gateway start, stopping and restarting.

    Java 130 59

  6. Tutorials Tutorials Public

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

    Jupyter Notebook 694 244

Repositories

Showing 10 of 92 repositories
  • Documentation Public

    QuantConnect Wiki Style Documentation Behind QuantConnect

    QuantConnect/Documentation’s past year of commit activity
    HTML 235 Apache-2.0 187 26 0 Updated Mar 19, 2026
  • Lean.Brokerages.TradeStation Public

    TradeStation Brokerage Plugin

    QuantConnect/Lean.Brokerages.TradeStation’s past year of commit activity
    C# 16 17 4 0 Updated Mar 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 7 0 0 Updated Mar 19, 2026
  • Lean.DataSource.DataBento Public

    Historical downloads and live data streaming

    QuantConnect/Lean.DataSource.DataBento’s past year of commit activity
    C# 4 Apache-2.0 7 0 0 Updated Mar 19, 2026
  • Lean.Brokerages.Tradier Public

    Tradier Brokerage Implementation

    QuantConnect/Lean.Brokerages.Tradier’s past year of commit activity
    C# 8 Apache-2.0 13 3 0 Updated Mar 19, 2026
  • Lean.Brokerages.Samco Public

    Samco Brokerage Plugin

    QuantConnect/Lean.Brokerages.Samco’s past year of commit activity
    C# 1 Apache-2.0 10 3 0 Updated Mar 19, 2026
  • Lean Public

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

    QuantConnect/Lean’s past year of commit activity
    C# 17,932 Apache-2.0 4,602 239 (8 issues need help) 13 Updated Mar 19, 2026
  • Lean.Brokerages.dYdX Public

    dYdX Brokerage Plugin

    QuantConnect/Lean.Brokerages.dYdX’s past year of commit activity
    C# 3 5 0 1 Updated Mar 19, 2026
  • Lean.Brokerages.Tastytrade Public

    Tastytrade Brokerage Implementation

    QuantConnect/Lean.Brokerages.Tastytrade’s past year of commit activity
    C# 8 8 0 1 Updated Mar 19, 2026
  • Lean.Brokerages.Alpaca Public

    Alpaca Brokerage Implementation

    QuantConnect/Lean.Brokerages.Alpaca’s past year of commit activity
    C# 11 18 3 0 Updated Mar 19, 2026