RMSE & MAE Calculator MCP Connector for Claude

Root Mean Square Error (RMSE) and Mean Absolute Error (MAE) are the golden standards for validating regression algorithms (like predicting housing prices or stock values). When asking an AI agent to compare two arrays of numeric predictions, the AI will often approximate or outright invent the square roots and averages. This engine processes the arrays natively in JS, returning mathematically pristine MSE, RMSE, and MAE metrics in milliseconds.