{"uid":"cap__RULvRQhUsz_A2edITYbN","slug":"one-engine-array-stats-pack-tier-4-92fc2ae0","name":"ONE Engine Array Stats Pack (Tier 4)","description":"Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.","url":"https://one-search.one-engine.workers.dev/v2/array-stats-pack/t4?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"values":{"type":"array"}}},"responseSchema":{"type":"json","example":{"tier":4,"result":"Tier-dependent output"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0018","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.0018/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0018","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0018","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_9JaPhvJmfdRBgER6wo-4p","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0018","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes statistical analysis on an array of numeric values, returning tier-4 level results via a pay-per-call x402 API on Base.","exampleAgentPrompt":"Can you run statistical analysis on this array of numbers for me: [12, 45, 7, 89, 34, 56, 23, 78, 11, 99]?","exampleUseCases":[{"title":"Sales data distribution analysis","prompt":"I have a list of daily sales figures for last month — [1200, 980, 1450, 760, 1100, 1340, 890, 1500, 670, 1230] — can you compute the full stats breakdown for me, like mean, median, standard deviation, and any other descriptive stats?"},{"title":"Sensor reading anomaly check","prompt":"Here are temperature readings from my IoT sensors over the past hour: [72.1, 71.8, 73.0, 98.4, 72.5, 71.9, 72.3]. Can you run statistical analysis on these values so I can see if that spike looks like a real outlier?"},{"title":"Model output score evaluation","prompt":"I just got confidence scores back from my ML model for a batch of predictions: [0.91, 0.87, 0.54, 0.99, 0.73, 0.68, 0.95, 0.42]. Can you compute summary statistics on these so I can understand how consistent the model is performing?"}],"resultDescription":"Returns a JSON object containing tier-4 statistical results for the provided array, which may include measures such as mean, median, variance, standard deviation, percentiles, min, max, and other descriptive statistics depending on the tier output.","failureModes":["Empty or missing 'values' array returns an error or empty result","Non-numeric values in the array may cause computation errors","Payment failure via x402 protocol blocks the request","Malformed JSON input returns a 400-level error","Very large arrays may hit payload size limits on Cloudflare Workers"],"whenToPreferThis":"Choose this endpoint when you need quick, pay-per-call statistical computation on a numeric array without setting up your own math library or data pipeline. Ideal for autonomous agents that occasionally need descriptive statistics as part of a larger workflow and want to pay only per use at $0.0018 USDC. Best when already operating within an x402/Base payment ecosystem.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:27.182Z","isFirstParty":false,"canonicalSlug":"one-engine-array-stats-pack-tier-4-92fc2ae0"}