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Catalog
Every x402, MPP, MCP, and skill listing we've indexed, normalized, and enriched.
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Calculate required sample size or achieved statistical power for an experiment given effect size and significance level.
x402-eip155:8453
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Detect and measure seasonality in time series data using seasonal indices and peak/trough period identification.
x402-eip155:8453
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Calculate confidence intervals from raw data or summary statistics with margin of error and interpretation.
x402-eip155:8453
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Score customer churn risk from behavioral signals: inactivity, usage drop, support tickets, NPS and payment failures.
x402-eip155:8453
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Calculate SMA and EMA for configurable periods with above/below MA signals and crossover detection.
x402-eip155:8453
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Analyze multi-stage conversion funnels with step-by-step drop-off rates and biggest drop-off identification.
x402-eip155:8453
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Calculate percentile rank, Z-score and tier for values against a reference distribution.
x402-eip155:8453
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Calculate A/B test statistical significance using chi-squared test with confidence level and minimum sample size guidanc
x402-eip155:8453
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Calculate cohort retention rates by period with Day-30/90/180 benchmarks and churn cliff detection.
x402-eip155:8453
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Compute Pearson and Spearman correlations between two series with R-squared and linear regression equation.
x402-eip155:8453
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Detect statistical outliers using IQR, Z-score or modified Z-score methods
Detect statistical outliers using IQR, Z-score or modified Z-score methods. Returns flagged values with scores.
x402-eip155:8453
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Calculate real estate cap rate from NOI and property value with market range benchmarks by property type.
x402-eip155:8453
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Detect trend direction, strength, acceleration and recent vs historical shift in a time series.
x402-eip155:8453
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Analyze revenue growth rates, CAGR, trend direction, acceleration/deceleration and next period forecast.
x402-eip155:8453
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Score LTV:CAC ratio health with tier classification (World-class/Healthy/Marginal/Unhealthy) and actionable guidance.
x402-eip155:8453
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Calculate portfolio beta from weighted individual stock betas
Calculate portfolio beta from weighted individual stock betas. Returns risk profile and high/low beta positions.
x402-eip155:8453
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Calculate dividend yield, annual income projection and assessment against industry benchmarks.
x402-eip155:8453
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x402· base
Price European call and put options using Black-Scholes with full Greeks: delta, gamma, theta and vega.
x402-eip155:8453
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