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 - [pyfolio](https://github.com/quantopian/pyfolio) | `Python` | - Portfolio and risk analytics in Python
 - [curistat](https://github.com/moxiespirit/MyClone/tree/main/volatility_platform) | `Python` | - Futures volatility forecasting for ES/NQ. Daily CVN rating (1-10), regime detection (CRC composite), directional signals, economic event impact analytics. Includes MCP server for AI agent integration.
 - [System R](https://agents.systemr.ai) | `Python` | - Risk intelligence API for trading agents. Pre-trade gate with position sizing (G-formula/Kelly), drawdown analysis, Monte Carlo simulation, regime detection. REST API and MCP server.
+- [QuantDojo Tools Hub](https://quantdojo.ai/tools/) – Free, no-login web calculators for position sizing, Kelly criterion, risk/reward, drawdown recovery, Sharpe ratio, and trading expectancy.
 
 ### Optimization