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QuantConnect

22 indexed repositories · View on GitHub

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

C# · 21691 stars
lean-cli
CLI for running the LEAN engine locally and in the cloud

Python · 326 stars
Documentation
QuantConnect Wiki Style Documentation Behind QuantConnect

HTML · 261 stars
IBAutomater
Automates IB Gateway start, stopping and restarting.

Java · 143 stars
Lean.Brokerages.InteractiveBrokers
InteractiveBrokers Brokerage Plugin

C# · 79 stars
Lean.Brokerages.Zerodha
Zerodha Brokerage Plugin

C# · 25 stars
quantconnect-stubs-generator
Automatically generate Python type stubs for QuantConnect's Lean

C# · 21 stars
Lean.Brokerages.TradeStation
TradeStation Brokerage Plugin

C# · 19 stars
Lean.Brokerages.Alpaca
Alpaca Brokerage Implementation

C# · 18 stars
Lean.Brokerages.Template
Lean Brokerages Template

C# · 14 stars
Lean.Brokerages.Tastytrade
Tastytrade Brokerage Implementation

C# · 11 stars
Lean.Brokerages.Tradier
Tradier Brokerage Implementation

C# · 10 stars
Lean.Brokerages.OANDA
OANDA Brokerage Implementation

C# · 9 stars
Lean.Brokerages.ByBit
ByBit Brokerage Integration to LEAN

C# · 7 stars
Lean.Brokerages.TradingTechnologies
Trading Technologies Brokerage Plugin

C# · 6 stars
Lean.Brokerages.Coinbase
Coinbase Pro brokerage template

C# · 5 stars
Lean.DataSource.BenzingaNews

C# · 3 stars
Lean.Brokerages.dYdX
dYdX Brokerage Plugin

C# · 3 stars
Lean.Brokerages.Kraken
Kraken Brokerage Plugin

C# · 3 stars
Lean.DataSource.BrainSentiment

C# · 2 stars
2 more repositories live on View on GitHub

Beginner friendly Everything

Open All

Importing Data: a TradeBar-derived custom type must set DataType = MarketDataType.Base for typed History and Slice.Get Open

Difficulty 1/5 1-3 hours Newbie friendliness 88/100

QuantConnect/Documentation#2696 · Opened Sep 19, 2026
Fix CI/CD: Build & Test fails on every push to master Open

bug

Difficulty 5/5 Over a week Newbie friendliness 35/100

QuantConnect/Lean.Brokerages.Tastytrade#40 · Opened Sep 18, 2026
Fix broken documentation links Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

QuantConnect/Documentation#2682 · Opened Sep 16, 2026
Notify LEAN about ordinary brokerage-side orders received during live trading Open

Difficulty 4/5 3-5 days Newbie friendliness 68/100

QuantConnect/Lean.Brokerages.InteractiveBrokers#264 · Opened Sep 16, 2026
Api: order paging surface discards the total count, has no iterator, and is hard to use from research Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

QuantConnect/Lean#9798 · Opened Sep 15, 2026
Support Binance USDⓈ-M TRADIFI_PERPETUAL contracts (tokenized stock/commodity perpetuals) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

QuantConnect/Lean#9797 · Opened Sep 15, 2026
Crypto and CryptoFuture delisting support Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

QuantConnect/Lean#9795 · 2 comments · Opened Sep 15, 2026
2FA timeout during gateway restart: no BrokerageMessageEvent raised, connection never recovers Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

QuantConnect/Lean.Brokerages.InteractiveBrokers#262 · Opened Sep 15, 2026
StreamingMessageHandler concurrent sends crash NetMQ with "Cannot close an uninitialised Msg" Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

QuantConnect/Lean#9790 · 1 comment · Opened Sep 13, 2026
Support orders placed outside of the algorithm (brokerage-side orders) Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

QuantConnect/Lean.Brokerages.dYdX#40 · Opened Sep 11, 2026
Support orders placed outside of the algorithm (brokerage-side orders) Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

QuantConnect/Lean.Brokerages.OANDA#36 · Opened Sep 11, 2026
Support orders placed outside of the algorithm (brokerage-side orders) Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

QuantConnect/Lean.Brokerages.Coinbase#39 · Opened Sep 11, 2026
Support orders placed outside of the algorithm (brokerage-side orders) Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

QuantConnect/Lean.Brokerages.ByBit#45 · Opened Sep 11, 2026
Morningstar US Fundamentals: state that SecurityReference status/delisting fields (and classification) are current values, not point-in-time Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

QuantConnect/Documentation#2670 · Opened Sep 9, 2026
AddEquity resolution becomes order-dependent when an equity permtick such as LIFE.1 is added before LIFE Open

Difficulty 4/5 3-5 days Newbie friendliness 68/100

QuantConnect/Lean#9781 · Opened Sep 9, 2026
Change Email: state that the confirmation goes to the current address, and what to do when that inbox is unavailable Open

Difficulty 1/5 Under an hour Newbie friendliness 92/100

QuantConnect/Documentation#2662 · Opened Sep 8, 2026
Fundamentals: AccessionNumber default period is OneMonth, so HasValue is always false (and no 12M slot for 10-K accessions) Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

QuantConnect/Lean#9777 · Opened Sep 7, 2026
Unequal-wing iron condor maintenance uses the put width when the call wing is wider Open

QuantConnect/Lean#9775 · 1 comment · 1 assignee · Opened Sep 5, 2026
UpdateOrder on ComboLimitOrder returns success but broker price never changes (ReplaceOrder sends no per-leg data) Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

QuantConnect/Lean.Brokerages.TradeStation#106 · Opened Sep 1, 2026
AddFuture() silently no-ops when the same ticker is added twice with different DataMappingMode, breaking History() Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

QuantConnect/Lean#9764 · 2 comments · Opened Aug 28, 2026
Support multi-leg (combo) options orders Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

QuantConnect/Lean.Brokerages.Alpaca#75 · Opened Aug 28, 2026
[Library Request] tabpfn Open

library-request

Difficulty 4/5 3-5 days Newbie friendliness 48/100

QuantConnect/Lean#9749 · 2 reactions · Opened Aug 25, 2026
[Library Upgrade] autogluon Open

library-request

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

QuantConnect/Lean#9743 · Opened Aug 24, 2026
UnknownMessageWindowDetected: new dialog 'Required PassKey is not supported, please upgrade to latest version GATEWAY' Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

QuantConnect/IBAutomater#113 · 1 comment · Opened Aug 17, 2026
Configure IB Gateway for Financial Advisor Allocation Groups during startup Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

QuantConnect/IBAutomater#112 · Opened Aug 14, 2026
Support end-to-end Interactive Brokers Financial Advisor Allocation Groups Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

QuantConnect/Lean.Brokerages.InteractiveBrokers#259 · Opened Aug 14, 2026
Enable FA managed brokerage accounts and account group visibility in algorithms Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

QuantConnect/Lean#9707 · Opened Aug 14, 2026
Map Lean Order.Tag to IB Order.OrderRef so tags appear on IBKR Flex / activity statements Open

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

QuantConnect/Lean.Brokerages.InteractiveBrokers#255 · Opened Aug 8, 2026
IB brokerage: fill events dropped during 1100 disconnect are never recovered on reconnect Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

QuantConnect/Lean.Brokerages.InteractiveBrokers#249 · 2 comments · Opened Aug 4, 2026
lean cloud push overwrites read-only shared library files Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

QuantConnect/lean-cli#661 · 1 comment · Opened Aug 4, 2026
Option strategy matching is not deterministic across processes, changing position groups and margin for identical holdings Open

QuantConnect/Lean#9648 · 1 assignee · Opened Aug 2, 2026
CloseMainWindow silently abandons the close when the main window is unavailable Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

QuantConnect/IBAutomater#107 · Opened Jul 30, 2026
Gate order submission during the IB Gateway scheduled auto-restart window Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

QuantConnect/Lean.Brokerages.InteractiveBrokers#242 · 2 comments · Opened Jul 22, 2026
TastytradeBrokerage: "Sell to Close" on held long option rejected by TastyTrade preflight as uncovered (position-ledger latency) Open

blocked cannot reproduce

Difficulty 4/5 3-5 days Newbie friendliness 48/100

QuantConnect/Lean.Brokerages.Tastytrade#30 · 1 comment · Opened Jul 20, 2026
TastytradeBrokerage: closing long option tagged SellToOpen when holdings are zero at PlaceOrder time Open

blocked cannot reproduce

Difficulty 4/5 3-5 days Newbie friendliness 56/100

QuantConnect/Lean.Brokerages.Tastytrade#29 · 1 comment · Opened Jul 20, 2026
Feature Request: Add Moomoo as a Supported Brokerage Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

QuantConnect/Lean#9625 · Opened Jul 16, 2026
Wrong authenticator selected on multi-authenticator accounts; code-100 authentication failures misclassified as sequence errors Open

Difficulty 4/5 3-5 days Newbie friendliness 58/100

QuantConnect/Lean.Brokerages.dYdX#37 · Opened Jul 16, 2026
Handle 'cheaper ETF available' dialog during order placement Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

QuantConnect/IBAutomater#105 · Opened Jul 16, 2026
Add CME 1-Ounce Gold (1OZ), Spot-Quoted Nasdaq-100 (QNDX), and Micro Ultra 10-Year Treasury Note (MWN) futures Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

QuantConnect/Lean#9622 · 2 comments · Opened Jul 15, 2026
Post-backtest robustness sections for Report (Monte Carlo, parameter sensitivity, regime classification) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

QuantConnect/Lean#9616 · Opened Jul 14, 2026
Add FXMacroData macro custom data example Open

Difficulty 4/5 3-5 days Newbie friendliness 65/100

QuantConnect/Lean#9603 · 1 comment · Opened Jul 10, 2026
CryptoFuture.IsCryptoCoinFuture() incorrectly classifies USD-quoted linear futures as coin-margined, breaking EU MiCA-compliant exchanges Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

QuantConnect/Lean#9574 · 1 comment · Opened Jun 30, 2026
TradeStation SSE stream silently drops single fill frame while stream remains otherwise healthy Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

QuantConnect/Lean.Brokerages.TradeStation#101 · 2 comments · Opened Jun 30, 2026
Delisting liquidations fill at midnight instead of the last trading day's close Open

Difficulty 5/5 Over a week Newbie friendliness 42/100

QuantConnect/Lean#9512 · Opened Jun 5, 2026
Market On Open isn't accurate Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

QuantConnect/Lean#9503 · Opened May 27, 2026
[Library Request] python-socketio Open

library-request

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

QuantConnect/Lean#9500 · Opened May 26, 2026
Library Upgrade: dgl Open

library-request

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

QuantConnect/Lean#9499 · Opened May 24, 2026
Fill Model Don't Account IOrderPropeties.OutsideRegularTradingHours Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

QuantConnect/Lean#9476 · Opened May 11, 2026
Automatically trade the mapped asset Open

agent-generation

QuantConnect/Lean#9463 · 1 reaction · 1 assignee · Opened May 6, 2026
Configurable Rolling Date With DataMappingMode Open

feature

Difficulty 4/5 3-5 days Newbie friendliness 48/100

QuantConnect/Lean#9440 · 9 comments · 24 reactions · Opened Apr 27, 2026

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