Lean CLI

Local Development, Cloud Backtesting

An easy-to-install and use distribution of LEAN; research, backtest, optimize, and live-trade on-premise with no dependency hassles.

lean init
lean create-project "My Project"
lean backtest "My Project"

Installation: pip install lean

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Harness The Power of LEAN Locally or in The Cloud

Seamlessly develop locally in your favorite development environment, with full autocomplete and debugging support to quickly and easily identify problems with your strategy

Cross-check your local backtests by running the same strategy in the cloud or spin up dozens of servers for batch processing a parameter optimization.

Setup Your Local Environment

Supported IDE's

LEAN CLI

>_ lean backtest

>_ lean cloud backtest

Open-Source Algorithmic Trading

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Easy Synchronization

With a simple command you can synchronize your projects to the cloud to work on the go with QuantConnect's Web-IDE or to perform cross-validation of your results.

Want more processing power than your local environment? Push your code to cloud and then spin up a cluster to run your backtesting. Or pull the code down to your local computer to store backups and code version control.

LEAN CLI

>_ lean cloud push

>_ lean cloud pull

Easily Back-Up and Synchronize Strategies

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Fully Featured Tool

LEAN CLI is a feature-complete tool to leverage LEAN technology for your algorithmic trading research and trading. We carefully implement every new feature for our cloud and the CLI, ensuring the LEAN project can stand alone.

Kick off with our Getting Started Tutorial today.

LEAN CLI

>_ Feature List

Local / cloud backtesting
Autocomplete and debugging environments
Local / cloud optimization
Local / cloud live trading
Jupyter research environments
Generate or download data
Synchronize projects with cloud
Create algorithm reports

Install Lean CLI: pip install lean

The World's Leading Algorithmic Trading Platform

Install LEAN CLI

Download Financial Data

Download QuantConnect's peer-reviewed cloud financial data to run backtests and research with LEAN locally. Data is packaged and sold per symbol-day to keep costs low and can be setup to automatically download all the data you need.