Audits › QuantConnect/Lean
Open-source trading bot · audit
QuantConnect/Lean
Lean Algorithmic Trading Engine by QuantConnect (Python, C#)
Repository facts
- Repository
- QuantConnect/Lean
- Stars
- 21,654
- Forks
- 5,250
- Open issues
- 251
- Language
- C#
- License
- Apache-2.0
- Created
- 2014-11-28
- Last push
- 2026-09-17
- README names exchanges
- none found
- README mentions an LLM
- no
- Backtesting mentioned
- yes
- Paper trading / dry run mentioned
- no
Source: GitHub API, 2026-09-17. Exchange and LLM mentions come from a keyword scan of the README, not from running the bot.
Risk-control audit
Audit scheduled
The 21-control audit of this repository is queued. This page shows the public repository data as of 2026-09-17; the verdicts, with file and line evidence, will appear here when the audit is finished. See how audits are done.
Exchanges
The README does not name Binance.US, Coinbase, Kraken or Robinhood.
Running Lean with real money?
The watchdog runs apart from the bot with a read-only key and alerts you when drawdown, position size or heartbeat cross your limits. Founding price 19 USD/month, early access open.