{"slug":"quantconnect-lean","name":"QuantConnect LEAN","author":"QuantConnect","domain":"trading","integrations":["Interactive Brokers","Binance","Alpaca","OANDA"],"language":"C#","license":"Apache-2.0","stars":19900,"traits":["oss","keys","guard"],"summary":"Open-source event-driven algorithmic trading engine (Python and C#) for backtesting and live trading across asset classes.","repo":"https://github.com/QuantConnect/Lean","community":false,"tip":{"method":"x402","network":"eip155:8453","endpoint":"/api/tip/quantconnect-lean","note":"GET with an x402 client to tip the author; returns 402 with payment requirements until paid."}}