Repositories list

• Documentation

  Public
  QuantConnect Wiki Style Documentation Behind QuantConnect

  HTML

  •

  Apache License 2.0

  •190190 forks•263263 stars•1212 issues•33 pull requests•Updated Oct 12, 2026Oct 12, 2026

• Lean.Brokerages.dYdX

  Public
  dYdX Brokerage Plugin

  C#

  •88 forks•33 stars•22 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.Tastytrade

  Public

  QuantConnect/Lean.Brokerages.Tastytrade’s past year of commit activity
  Tastytrade Brokerage Implementation

  C#

  •1212 forks•1111 stars•44 issues•22 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.Alpaca

  Public
  Alpaca Brokerage Implementation

  C#

  •2222 forks•1818 stars•55 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.TradeStation

  Public

  QuantConnect/Lean.Brokerages.TradeStation’s past year of commit activity
  TradeStation Brokerage Plugin

  C#

  •1919 forks•1919 stars•44 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.DataSource.FactSet

  Public

  QuantConnect/Lean.DataSource.FactSet’s past year of commit activity
  Implementation to the public FactSet Data API.

  C#

  •99 forks•55 stars•00 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.DataSource.CoinAPI

  Public
  LEAN CoinAPI Data Source

  C#

  •

  Apache License 2.0

  •88 forks•33 stars•00 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.DataSource.AlphaVantage

  Public

  QuantConnect/Lean.DataSource.AlphaVantage’s past year of commit activity
  LEAN Alpha Vantage Data Source

  C#

  •

  Apache License 2.0

  •1616 forks•1212 stars•00 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.DataSource.IQFeed

  Public
  LEAN IQFeed Data Source

  C#

  •1111 forks•33 stars•11 issue•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.DataSource.ThetaData

  Public
  Integration with ThetaData for Options History and Live Streaming

  C#

  •

  Apache License 2.0

  •1616 forks•2424 stars•33 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.DataSource.DataBento

  Public
  Historical downloads and live data streaming

  C#

  •

  Apache License 2.0

  •88 forks•88 stars•00 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.DataSource.Polygon

  Public
  LEAN Polygon Data Source

  C#

  •2323 forks•1111 stars•22 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.ByBit

  Public
  ByBit Brokerage Integration to LEAN

  C#

  •1515 forks•77 stars•22 issues•22 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.Wolverine

  Public
  Wolverine Execution and Routing

  C#

  •88 forks•22 stars•00 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.RaiffeisenBankInternational

  Public
  FIX Implementation to Raiffeisen Centrobank

  C#

  •66 forks•11 star•00 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.OANDA

  Public
  OANDA Brokerage Implementation

  C#

  •

  Apache License 2.0

  •1919 forks•99 stars•33 issues•11 pull request•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.Tradier

  Public
  Tradier Brokerage Implementation

  C#

  •

  Apache License 2.0

  •1515 forks•1010 stars•33 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.Coinbase

  Public
  Coinbase Pro brokerage template

  C#

  •

  Apache License 2.0

  •1414 forks•55 stars•55 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.Bitfinex

  Public
  Bitfinex Brokerage Plugin

  C#

  •

  Apache License 2.0

  •1010 forks•22 stars•22 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.InteractiveBrokers

  Public
  InteractiveBrokers Brokerage Plugin

  C#

  •

  Apache License 2.0

  •6565 forks•8080 stars•2929 issues•33 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.Binance

  Public
  Binance Brokerage Plugin

  C#

  •

  Apache License 2.0

  •3333 forks•1313 stars•77 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.Zerodha

  Public
  Zerodha Brokerage Plugin

  C#

  •

  Apache License 2.0

  •2020 forks•2525 stars•22 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.Samco

  Public
  Samco Brokerage Plugin

  C#

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  Apache License 2.0

  •1212 forks•11 star•33 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.Kraken

  Public
  Kraken Brokerage Plugin

  C#

  •

  Apache License 2.0

  •1616 forks•33 stars•55 issues•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean.Brokerages.TradingTechnologies

  Public
  Trading Technologies Brokerage Plugin

  C#

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  Apache License 2.0

  •1111 forks•66 stars•11 issue•00 pull requests•Updated Oct 9, 2026Oct 9, 2026

• Lean

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

  pythonc-sharpfinance+ 12

  pythonc-sharpfinancealgorithmoptionstradingtrading-botforextrading-platformtrading-strategies+ 5

  C#

  •

  Apache License 2.0

  •5.3k5.3k forks•22k22k stars•242242 issues•2626 pull requests•Updated Oct 9, 2026Oct 9, 2026

• lean-cli

  Public
  CLI for running the LEAN engine locally and in the cloud

  cliquantconnectcloud-backtesting+ 2

  cliquantconnectcloud-backtestingcloud-optimizationlean-data

  Python

  •

  Apache License 2.0

  •170170 forks•327327 stars•3434 issues•66 pull requests•Updated Oct 8, 2026Oct 8, 2026

• Lean.DataSource.BLS

  Public
  BLS Popular Series

  C#

  •66 forks•00 stars•00 issues•00 pull requests•Updated Oct 6, 2026Oct 6, 2026

• Lean.DataSource.SEC

  Public
  C#

  •77 forks•55 stars•00 issues•00 pull requests•Updated Oct 5, 2026Oct 5, 2026

• Lean.DataSource.USEnergy

  Public
  Example production implementation of our data marketplace for Energy Information Agency.

  C#

  •66 forks•22 stars•00 issues•00 pull requests•Updated Oct 5, 2026Oct 5, 2026