LEAN: pricing, API and features
Open-source event-driven algorithmic trading engine in Python and C# for research, backtesting and live trading across multiple asset classes including crypto.
Visit LEAN ↗ Plain link, no affiliate. Category: Trading bots & backtesting.
At a glance: LEAN (QuantConnect) — pricing: open-source; free tier: Yes; REST: unknown; MCP: unknown; open source: Yes.
Pricing
- Model
- open-source
- Free tier
- Yes — Engine is free (Apache-2.0). QuantConnect Cloud free plan: unlimited backtesting, 1 backtest node, 0 live trading nodes, community support.
- Plans
- unknown
- Notes
- QuantConnect Cloud paid plans (Researcher, Team, Trading Firm, Institution) show no dollar prices in the fetched page text; 1 USD = 100 QCC credits.
Verified on 2026-10-30 · Source: https://www.quantconnect.com/pricing
Access & auth
- Authentication
- unknown
- KYC required
- unknown
- Notes
- Run locally via LEAN CLI or on QuantConnect Cloud; live trading uses the user's brokerage credentials.
Verified on 2026-10-30 · Source: https://www.lean.io/
Coverage
- Exchanges
- Cloud live-trading crypto brokerages: Binance, Bybit, Kraken, Coinbase, Bitfinex, Alpaca (Researcher tier and up)
- Chains
- unknown
- Assets
- Equities, forex, futures, options, indexes, CFDs and crypto
Verified on 2026-10-30 · Source: https://www.quantconnect.com/pricing
Capabilities
- Capabilities
- historical-data, backtesting, automation, live-trading, multi-exchange, order-execution
Verified on 2026-10-30 · Source: https://www.lean.io/
Interfaces
- REST API
- unknown
- WebSocket
- unknown
- SDKs
- python, csharp
- Official MCP server
- unknown
- Other
- LEAN CLI, VSCode integration, Jupyter Lab
Verified on 2026-10-30 · Source: https://www.lean.io/
Open source & self-hosting
- Open source
- Yes
- Licence
- Apache-2.0
- Self-host
- Yes
- Repository
- https://github.com/QuantConnect/Lean
Verified on 2026-10-30 · Source: https://api.github.com/repos/QuantConnect/Lean
FAQ
Does LEAN have a free tier?
Yes. Engine is free (Apache-2.0). QuantConnect Cloud free plan: unlimited backtesting, 1 backtest node, 0 live trading nodes, community support. (verified 2026-10-30)
Does LEAN offer an API?
REST: unknown. WebSocket: unknown. Official MCP server: unknown. Verified 2026-10-30.
Is LEAN open source or self-hostable?
Open source: Yes; licence: Apache-2.0; self-host: Yes. Verified 2026-10-30.
What are alternatives to LEAN?
Other trading bots & backtesting in our directory: 3Commas, ADAMANT TradeBot, AI Hedge Fund Crypto, Alertatron, Algobot.
Related trading bots & backtesting
3Commas
Hosted crypto trading automation platform with DCA, grid and signal bots, a demo account and webhook/Pine Script execution.
ADAMANT TradeBot
Self-hosted market-making software for token issuers: keeps order-book depth and spreads on selected centralized exchanges using your own exchange account.
AI Hedge Fund Crypto
Python framework that runs a graph of technical-analysis strategy nodes plus an LLM portfolio step for crypto trading decisions, with multi-timeframe backtesting.
Alertatron
Cloud service that executes orders on crypto exchanges from TradingView or other webhook alerts, with order chaining, trading groups and chart captures sent to Telegram or Discord.
Algobot
Python desktop bot for crypto: create strategies, then backtest, optimize, simulate or run live, with Telegram control.
algotrading (ivopetiz)
Python framework for crypto trading bots: realtime, tick-by-tick and backtest modes, stop-loss helpers, exchange API, database or CSV data sources.