# Services from portfolio-stats.x402tookit.com on Zero

> portfolio-stats.x402tookit.com serves 10 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/portfolio-stats.x402tookit.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/portfolio-stats.x402tookit.com/health.json

## Services

- [Portfolio Stats – Equity Curve Summary](https://www.zero.xyz/c/portfolio-stats-equity-curve-summary-1fc5ebb5/llms.txt): $0.02/call via x402. Computes a comprehensive equity-curve summary (CAGR, volatility, Sharpe, Sortino, Calmar, max drawdown, best/worst period) from a price or return series you supply.
- [Portfolio Stats: Correlation, Beta, R-Squared & Alpha](https://www.zero.xyz/c/portfolio-stats-correlation-beta-r-squared-alpha-e9085f56/llms.txt): $0.02/call via x402. Computes correlation, beta, R-squared, covariance, and annualized alpha of one asset return or price series against a benchmark series.
- [Portfolio Stats CAGR Calculator](https://www.zero.xyz/c/portfolio-stats-cagr-calculator-b30b2e24/llms.txt): $0.02/call via x402. Calculates compound annual growth rate (CAGR) from start and end values over a specified duration (years, dates, or periods)
- [Portfolio Stats – Annualized Volatility](https://www.zero.xyz/c/portfolio-stats-annualized-volatility-82fba33e/llms.txt): $0.02/call via x402. Computes annualized volatility (sample standard deviation of returns) from a supplied price or return series, with optional annualization period.
- [Portfolio Stats – Sharpe & Sortino Ratio Calculator](https://www.zero.xyz/c/portfolio-stats-sharpe-sortino-ratio-calculator-0e664f7b/llms.txt): $0.02/call via x402. Computes Sharpe and Sortino ratios for a price or return series you supply, given your chosen risk-free rate and annualization period.
- [Portfolio Stats – Maximum Drawdown](https://www.zero.xyz/c/portfolio-stats-maximum-drawdown-0f91746d/llms.txt): $0.02/call via x402. Calculates the maximum drawdown of a price or return series, returning peak, trough, and recovery indices or dates.
- [Portfolio Stats – Kelly Criterion Calculator](https://www.zero.xyz/c/portfolio-stats-kelly-criterion-calculator-34785898/llms.txt): $0.02/call via x402. Computes the Kelly criterion optimal bet fraction, growth rate, and overbet threshold for a given win probability and payoff ratio
- [Portfolio Stats – Value-at-Risk & Expected Shortfall](https://www.zero.xyz/c/portfolio-stats-value-at-risk-expected-shortfall-1c581c48/llms.txt): $0.02/call via x402. Computes illustrative historical and parametric Value-at-Risk (VaR) and Expected Shortfall (CVaR) from a user-supplied price or return series.
- [Portfolio Stats – Simple & Log Returns](https://www.zero.xyz/c/portfolio-stats-simple-log-returns-01996a70/llms.txt): $0.02/call via x402. Calculates simple returns, log returns, and cumulative return from a user-supplied price series
- [Portfolio Stats – Rolling Mean Return & Annualized Volatility](https://www.zero.xyz/c/portfolio-stats-rolling-mean-return-annualized-volatility-85afb00e/llms.txt): $0.02/call via x402. Computes rolling mean return and rolling annualized volatility over a sliding window from a user-supplied price or return series.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)