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quantitative momentum, volatility, z-score, and percentile-rank signals for energy price time series (e.g. WTI crude oil) derived from EIA and other sources","exampleAgentPrompt":"Can you pull the latest WTI crude oil price signals — I want to see the momentum, 20-day volatility, z-scores against 10 and 30-day windows, and percentile ranks so I can gauge where energy prices stand right now?","exampleUseCases":[{"title":"Crude oil regime monitoring for macro portfolio","prompt":"Check where WTI crude oil sits right now — give me the momentum, volatility, z-scores, and percentile rank so I can tell if we're in a risk-on or risk-off energy regime for my macro portfolio rebalance."},{"title":"Energy signal alert in automated trading agent","prompt":"Fetch the latest energy price signals for WTI crude oil and flag if the 30-day z-score is outside ±1.5 or the percentile rank drops below 10 — I want my trading agent to know when something unusual is happening."},{"title":"Quantitative briefing on energy commodity trend","prompt":"Give me a quick quant briefing on crude oil: what's the 1-day log return, 4-period momentum, and 20-day volatility right now, along with the recent price history so I can see the trend?"}],"resultDescription":"A JSON object containing one or more energy signal records, each with: the series identifier (e.g. energy-eia__DCOILWTICO), last price value, 1-day log return, 4-period momentum, 20-day rolling volatility, z-scores over 10- and 30-day windows, percentile ranks over 10- and 30-day windows, number of data points, a short price history array (timestamp + value), signal status, and metadata including generation timestamp, source label, and data type.","failureModes":["Payment not settled via x402 — endpoint returns 402 Payment Required if USDC payment is missing or invalid","Series data temporarily unavailable — status field may return non-'ok' value with reduced or empty history array","Stale data — generated_at timestamp may lag real-time if upstream EIA source has not updated","Empty signals array — if no valid data points exist for the requested window, points field may be 0 and z-scores/ranks may be null or 0","Malformed request — missing required 'type' or 'method' fields in input object returns a validation error"],"whenToPreferThis":"Choose this endpoint when you need pre-computed quantitative signals (momentum, volatility, z-score, percentile rank) for energy commodities like WTI crude oil, rather than raw price feeds. 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