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Updated 7 h ago
QuantConnect

Organization

Public GitHub footprint of QuantConnect

@QuantConnect
View profile on GitHub

Python and C# algorithmic trading platform

United States of America

93

Public repositories

22,970

Total stars

1,872

Followers

QuantConnect maintains a significant public presence on GitHub, hosting a variety of repositories focused on algorithmic trading. The organization primarily utilizes C#, Jupyter Notebook, and Python, with notable projects like Lean, which serves as an algorithmic trading engine, and various research and tutorial notebooks.

Top languages

C# 74Jupyter Notebook 5Python 5HTML 2Java 1CSS 1JavaScript 1

Public repositories

Lean

19,838

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

C#
Updated Jun 13, 2026

Research

777

Open sourced research notebooks by the QuantConnect team.

Jupyter Notebook
Updated Jun 13, 2026

Tutorials

725

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

Jupyter Notebook
Updated Jun 11, 2026

HandsOnAITradingBook

341

Code repository for the book "Hands On AI Trading with Python, QuantConnect, and AWS."

Jupyter Notebook
Updated Jun 12, 2026

lean-cli

312

CLI for running the LEAN engine locally and in the cloud

Python
Updated Jun 12, 2026

Documentation

252

QuantConnect Wiki Style Documentation Behind QuantConnect

HTML
Updated Jun 12, 2026

IBAutomater

142

Automates IB Gateway start, stopping and restarting.

Java
Updated Jun 3, 2026

mcp-server

74

Official Python MCP server for local interactions with the QuantConnect API

Python
Updated May 28, 2026

Lean.Brokerages.InteractiveBrokers

72

InteractiveBrokers Brokerage Plugin

C#
Updated Jun 9, 2026

pythonnet

28

Python for .NET is a package that gives Python programmers nearly seamless integration with the .NET Common Language Runtime (CLR) and provides a powerful application scripting tool for .NET developers.

C#
Updated May 8, 2026

LeanReportCreator

27

Create beautiful HTML/PDF reports for sharing your LEAN backtest and live trading results.

HTML
Updated Apr 17, 2025

Lean.DataSource.ThetaData

23

Integration with ThetaData for Options History and Live Streaming

C#
Updated May 16, 2026

Lean.Brokerages.Zerodha

22

Zerodha Brokerage Plugin

C#
Updated May 10, 2026

Lean.Brokerages.TradeStation

20

TradeStation Brokerage Plugin

C#
Updated Jun 9, 2026

quantconnect-stubs-generator

19

Automatically generate Python type stubs for QuantConnect's Lean

C#
Updated May 12, 2026

Lean.Brokerages.TDAmeritrade

17

TD Ameritrade Brokerage Plugin

C#
Updated May 10, 2026

Lean.Brokerages.FXCM

17

Cross platform implementation of FXCM Java Trading API in .NET for connecting with FXCM. Uses IKVM to port the Java library to a .NET DLL.

C#
Updated May 10, 2026

Lean.DataSource.SDK

15

No description provided for this repository.

C#
Updated Jun 12, 2026

Lean.Brokerages.Alpaca

15

Alpaca Brokerage Implementation

C#
Updated May 10, 2026

Lean.Brokerages.Binance

12

Binance Brokerage Plugin

C#
Updated May 20, 2026

Lean.Brokerages.Template

12

Lean Brokerages Template

C#
Updated May 10, 2026

AlphaStreams

11

Alpha Streams Public SDK.

Jupyter Notebook
Updated Jun 11, 2026

Lean.DataSource.AlphaVantage

11

LEAN Alpha Vantage Data Source

C#
Updated Jun 10, 2026

Lean.Brokerages.Tradier

10

Tradier Brokerage Implementation

C#
Updated May 14, 2026

Lean.Brokerages.Tastytrade

10

Tastytrade Brokerage Implementation

C#
Updated May 14, 2026

Lean.DataSource.Polygon

9

LEAN Polygon Data Source

C#
Updated May 10, 2026

Lean.Brokerages.OANDA

9

OANDA Brokerage Implementation

C#
Updated May 10, 2026

Lean.DataSource.QuiverQuantCongressTrading

8

Quiver Quantitative Congress Trading Data Alternative Data

C#
Updated May 5, 2026

Lean.Brokerages.ByBit

8

ByBit Brokerage Integration to LEAN

C#
Updated Apr 30, 2026

Lean.DataSource.NasdaqDataLink

7

Nasdaq Data Link dataset

C#
Updated Jun 9, 2026

Lean.Brokerages.TradingTechnologies

6

Trading Technologies Brokerage Plugin

C#
Updated Jun 8, 2026

Lean.DataSource.DataBento

6

Historical downloads and live data streaming

C#
Updated Apr 27, 2026

Lean.Brokerages.Coinbase

6

Coinbase Pro brokerage template

C#
Updated Apr 7, 2026

Lean.Reference

6

Formatted LEAN Class/API Reference by Doxygen

CSS
Updated May 7, 2025

Lean.DataSource.SEC

5

No description provided for this repository.

C#
Updated Jun 10, 2026

gridster.js

5

gridster.js is a jQuery plugin that makes building intuitive draggable layouts from elements spanning multiple columns

JavaScript
Updated Dec 24, 2021

Lean.DataSource.Tiingo

4

No description provided for this repository.

C#
Updated Dec 30, 2025

Lean.DataSource.CoinGecko

4

Coin Gecko Lean Alternative Data

C#
Updated Dec 29, 2025

Lean.DataSource.BybitFundingRate

4

ByBit Margin Perp Funding Rates

C#
Updated Dec 29, 2025

Lean.DataSource.FactSet

4

Implementation to the public FactSet Data API.

C#
Updated Dec 29, 2025

Lean.DataSource.CoinAPI

3

LEAN CoinAPI Data Source

C#
Updated May 23, 2026

Lean.Brokerages.dYdX

3

dYdX Brokerage Plugin

C#
Updated Apr 7, 2026

Lean.DataSource.CBOE

3

No description provided for this repository.

C#
Updated Apr 5, 2026

Lean.DataSource.InteractiveBrokersShortStock

3

LEAN Interactive Brokers Short Stock Availability Data Source

C#
Updated Apr 4, 2026

Lean.DataSource.FRED

3

Example production implementation of our data marketplace for FRED.

C#
Updated Apr 4, 2026

Lean.Brokerages.Kraken

3

Kraken Brokerage Plugin

C#
Updated Mar 12, 2026

alphalens

3

Performance analysis of predictive (alpha) stock factors

Unknown Language
Updated Jan 24, 2026

Lean.DataSource.HuggingFace

3

HuggingFace caching for the QuantConnect Community

Python
Updated Jan 9, 2026

Lean.DataSource.QuiverQuantWikipedia

3

Example production implementation for our data marketplace for Quiver Quantitative Wikipedia Dataset

C#
Updated Dec 30, 2025

Lean.DataSource.QuiverQuantWallStreetBets

3

Example production implementation for our data marketplace Quiver Quantitative Wall Street Bets dataset.

C#
Updated Dec 30, 2025

Lean.DataSource.ExtractAlphaTrueBeats

3

ExtractAlpha True Beats Implementation

C#
Updated Dec 30, 2025

Lean.DataSource.IQFeed

3

LEAN IQFeed Data Source

C#
Updated Dec 29, 2025

Lean.Brokerages.Atreyu

3

Atreyu Lean brokerage implementation

C#
Updated Dec 24, 2024

Lean.Brokerages.Wolverine

2

Wolverine Execution and Routing

C#
Updated May 4, 2026

Lean.DataSource.USEnergy

2

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

C#
Updated Apr 15, 2026

Lean.DataSource.CryptoCoarseFundamentalUniverse

2

Crypto Coarse Fundamental Universe Alternative Data

C#
Updated Apr 13, 2026

Lean.DataSource.USTreasury

2

Example production implementation of our data marketplace for US Treasury Yield Curves

C#
Updated Apr 4, 2026

Lean.DataSource.DerivativeUniverseGenerator

2

No description provided for this repository.

C#
Updated Feb 19, 2026

Lean.DataSource.dYdXFundingRate

2

dYdX Perp Futures Funding Rates

C#
Updated Jan 14, 2026

Lean.DataSource.BrainSentiment

2

No description provided for this repository.

C#
Updated Jan 9, 2026

Lean.DataSource.QuiverInsiderTrading

2

Quiver Insider Trading dataset

C#
Updated Dec 30, 2025

Lean.DataSource.BenzingaNews

2

No description provided for this repository.

C#
Updated Dec 29, 2025

Lean.Brokerages.Bitfinex

2

Bitfinex Brokerage Plugin

C#
Updated Dec 29, 2025

Lean.Brokerages.Exante

2

Exante Brokerage Plugin

C#
Updated Dec 24, 2024

ironpython-stubs

2

Autocomplete stubs for common IronPython/.NET libraries

Python
Updated Dec 24, 2021

influxdb-csharp

2

A .NET library for efficiently sending points to InfluxDB 1.x

C#
Updated Dec 24, 2021

Lean.DataSource.Regalytics

1

No description provided for this repository.

C#
Updated Apr 20, 2026

Lean.DataSource.TradingEconomics

1

No description provided for this repository.

C#
Updated Apr 5, 2026

alpaca-trade-api-csharp

1

C# SDK for Alpaca Trade API https://docs.alpaca.markets/

Unknown Language
Updated Feb 1, 2026

Lean.DataSource.USDAFruitAndVegetables

1

Historical fruit and vegetable pricing

C#
Updated Jan 30, 2026

Lean.Brokerages.Samco

1

Samco Brokerage Plugin

C#
Updated Dec 31, 2025

Lean.DataSource.VIXCentral

1

Example production implementation of our data marketplace for VixCentral.

C#
Updated Dec 30, 2025

Lean.DataSource.SmartInsiderIntentionsTransactions

1

No description provided for this repository.

C#
Updated Dec 30, 2025

Lean.Brokerages.RaiffeisenBankInternational

1

FIX Implementation to Raiffeisen Centrobank

C#
Updated Dec 29, 2025

PredictNowNET

1

A restful client library, designed to access PredictNow restful API.

Jupyter Notebook
Updated May 4, 2025

Lean.DataSource.QuiverQuantTwitterFollowers

1

Quiver Quant Twitter Followers

C#
Updated Dec 24, 2024

Lean.Brokerages.FTX

1

FTX Brokerage Plugin

C#
Updated Dec 24, 2024

convergence-deployment

1

Deployment scripts and documentation for Convergence https://convergence.io

Unknown Language
Updated Dec 24, 2021

Lean.DataSource.QuiverQuant

0

Quiver Quantitative Alternative Data

C#
Updated May 15, 2026

Lean.DataSource.SEC.FailsToDeliver

0

FTD

C#
Updated May 4, 2026

Lean.DataSource.BLS

0

BLS Popular Series

C#
Updated Apr 15, 2026

Lean.DataSource.QuiverGovernmentContracts

0

LEAN Quiver Government Contracts Data Source

C#
Updated Jan 5, 2026

Lean.DataSource.QuiverLobbying

0

LEAN Quiver Lobbying Data Source

C#
Updated Dec 30, 2025

Lean.DataSource.QuiverCNBC

0

LEAN Quiver CNBC Data Source

C#
Updated Dec 30, 2025

Lean.DataSource.KavoutCompositeFactorBundle

0

Bundle of 5 Composite ML factors by Kavout.

C#
Updated Dec 30, 2025

Lean.DataSource.Estimize

0

No description provided for this repository.

C#
Updated Dec 30, 2025

Lean.DataSource.EODHD

0

International micro-economic indicators

C#
Updated Dec 30, 2025

Lean.DataSource.BitcoinMetadata

0

Blockchain Bitcoin dataset

C#
Updated Dec 29, 2025

Lean.DataSource.BinanceFundingRate

0

Binance futures funding rate

C#
Updated Dec 29, 2025

docs-style-guide

0

Rackspace Style Guide for Technical Content

Unknown Language
Updated Apr 8, 2025

Lean.DataSource.IEX

0

LEAN IEX Data Source

C#
Updated Jan 3, 2025

Lean.DataSource.CryptoSlamNFTSale

0

CryptoSlam NFT Sales dataset

C#
Updated Dec 24, 2024

Lean.DataSource.USInterestRate

0

US Interest Rate Data Source

Python
Updated Nov 17, 2023

Frequently asked questions

What does QuantConnect build on GitHub?

QuantConnect builds a range of projects related to algorithmic trading on GitHub, including the Lean trading engine, research notebooks, and educational tutorials, aimed at enhancing trading strategies using Python and C#.

Which programming languages does QuantConnect use?

QuantConnect primarily uses C#, Jupyter Notebook, and Python for its repositories. These languages support their algorithmic trading platform and various research and tutorial resources available on their GitHub account.

Are QuantConnect's repositories public?

Yes, all of QuantConnect's repositories are public on GitHub. This level of transparency allows users to access and contribute to their algorithmic trading projects and resources.

Is this exposure intended?

Monitor QuantConnect with RepoGuard and get alerted the moment a new public repository appears.

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