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LEAN
QuantConnect's open-source algorithmic trading engine powering cloud backtesting and live execution.
high confidence reviewed
Status
active
License
Apache-2.0
Pricing
free
Category
quant-platforms
Subcategory
backtesting-engines
Supported Markets
us-equityforexcryptooptionsfutures
Languages
pythoncsharp
Features
event-driven-backtestinglive-trading-enginemulti-assetdata-managementoptimization
Verified by
editor
Last verified
2026-06-24