# MarketHeist

> MarketHeist is a set of free, no-code tools that run in the browser: portfolio analysis and building with 30+ years of proxy-extended history, strategy backtesting on any Yahoo Finance-listed ticker, and a market-context board of trend regimes. No account is required. Every number is computed by a deterministic engine, never generated by a language model. Results are historical simulation for education, not investment advice.

## Products

- [MarketHeist Portfolio](https://marketheist.io/portfolio/): portfolio analyzer and builder where a holding can be a whole portfolio or a backtested strategy (nested, multi-strategy portfolios), with a trend filter on top; plus lazy-portfolio templates, live-recomputing metrics and permanent shareable links. Agent-readable summaries: [llms.txt](https://marketheist.io/portfolio/llms.txt), [llms-full.txt](https://marketheist.io/portfolio/llms-full.txt).
- [MarketHeist Backtest Engine](https://marketheist.io/backtest/): no-code quantitative backtesting of momentum, mean-reversion and custom indicators, with Sharpe, CAGR, drawdown, walk-forward and Monte Carlo. Agent-readable summaries: [llms.txt](https://marketheist.io/backtest/llms.txt), [llms-full.txt](https://marketheist.io/backtest/llms-full.txt).
- [MarketHeist Context](https://marketheist.io/context/): read-only board of the seasonal (52-week) and generational (200-week) trend regime of major markets. Agent-readable summaries: [llms.txt](https://marketheist.io/context/llms.txt), [llms-full.txt](https://marketheist.io/context/llms-full.txt).
- [MarketHeist Docs](https://marketheist.io/docs/): quick start, indicator and metric concepts, guides and the API reference. Agent-readable summary: [llms.txt](https://marketheist.io/docs/llms.txt).

## Reference pages

Generated, citable pages with computed numbers and reproduce hashes. Each hub links every page of its set.

- [Strategy guides](https://marketheist.io/portfolio/strategies/): classic portfolios, backtested (60/40, All Weather, Golden Butterfly and more) with the real numbers and the honest trade-offs.
- [Fund history](https://marketheist.io/portfolio/history/): how far back 26 popular ETFs can be backtested once older mutual funds or indexes are spliced onto their returns.
- [Trend filters](https://marketheist.io/portfolio/trend-filter/): what a 10-month trend filter did to 18 lazy portfolios, with drawdowns, months in cash and whipsaws.
- [Risk breakdowns](https://marketheist.io/portfolio/risk/): each holding's share of the money next to its share of the risk in 16 lazy portfolios.
- [Robustness checks](https://marketheist.io/backtest/robustness/): classic trading rules (200-day moving average, golden cross, EMA crossover, RSI) stress-tested on five ETFs.
- [All guides](https://marketheist.io/portfolio/guides/): one index linking the hub and every page of the five sets above.

## For AI agents

- [MCP server](https://api.marketheist.io/api/mcp): public Model Context Protocol endpoint, streamable HTTP, no sign-in. Ten read-only tools: portfolio_returns (seasonality, calendar years, trailing), portfolio_risk (drawdowns, diversification, independent bets, correlations), compare_portfolios, analyze_portfolio (including nested portfolios and strategies as holdings), find_guides, list_portfolios, fund_history, decompose_factors, run_backtest, list_indicators. Answers for built-in portfolios and strategies are precomputed, dated ("data through <month>") and cite the marketheist.io page that shows the same number. Your own portfolios, including nested ones (portfolios of portfolios, rotations, strategies as holdings), work on the returns, risk, comparison and factor tools too, computed live. Same-origin alias: https://marketheist.io/mcp
- [OpenAPI spec](https://api.marketheist.io/api/openapi.json): OpenAPI 3.1 description of the public API.
- [Agent auth](https://marketheist.io/auth.md): agents need no registration, API key or OAuth.
- MCP Registry name: io.marketheist/backtest