MarketHeistDocumentation

Free, no-code quantitative investing tools — backtest trading strategies and analyze investment portfolios, with 30+ years of history, right in your browser.

Backtest → Quick Start

Portfolio → Quick Start

Open the app →

Backtest

Configure any indicator, set entry/exit rules, and see full performance metrics — Sharpe, CAGR, drawdown — in seconds. Walk-forward, Monte Carlo, and custom Python indicators included.

Backtest docs

Portfolio

Analyze and build lazy / asset-allocation portfolios from proven templates or a blank slate, with proxy-extended history, rebalancing, and correlation analysis.

Portfolio docs

API & MCP for AI assistants

Call the same engine from Claude and other AI assistants over MCP, or from any HTTP client via the REST API — public, no key required.

Connect via AI

Real data, no account

Everything runs on real Yahoo Finance history in your browser. No sign-up needed to backtest, analyze, or connect an AI assistant.