{"uid":"cap_8vQ7_nKii3z31NuAtdS7E","slug":"one-engine-array-stats-pack-tier-2-926fade3","name":"ONE Engine Array Stats Pack (Tier 2)","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/t2?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"values":{"type":"array"}}},"responseSchema":{"type":"json","example":{"tier":2,"result":"Tier-dependent output"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0009","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":"$0.0009/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0009","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0009","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_et435_wusBEkLaH_r22py","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0009","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes statistical metrics over an array of numeric values at Tier 2 depth, returning a richer stats pack than Tier 1.","exampleAgentPrompt":"Can you run the Tier 2 array stats pack on this list of values — [12, 45, 7, 89, 34, 56, 23, 78, 90, 11] — and give me the full statistical breakdown?","exampleUseCases":[{"title":"Descriptive stats for survey responses","prompt":"I have a list of survey scores — [3, 5, 4, 2, 5, 4, 3, 5, 1, 4, 5, 2] — can you run the Tier 2 stats pack on them and give me the full summary?"},{"title":"Analyze sales performance numbers","prompt":"Here are last quarter's weekly revenue figures: [8200, 9100, 7800, 10500, 11200, 9800, 8700, 10100]. Run the array stats pack at Tier 2 so I can see the distribution and key metrics."},{"title":"Quality control measurement analysis","prompt":"I've got a batch of 15 sensor readings from our production line: [99.1, 98.7, 100.2, 97.5, 99.8, 100.5, 98.3, 99.0, 101.1, 97.9, 100.0, 99.4, 98.6, 100.3, 99.7]. Can you compute the Tier 2 statistical breakdown for me?"}],"resultDescription":"Returns a JSON object with tier field (value: 2) and a result field containing Tier 2 statistical outputs — likely including mean, median, mode, variance, standard deviation, min, max, range, and possibly skewness or other higher-order descriptive statistics computed over the input array.","failureModes":["Empty or missing values array returns error or empty result","Non-numeric values in the array may cause computation failure or be silently ignored","Payment failure via x402 returns 402 status blocking access","Malformed JSON body returns 400 bad request","Very large arrays may time out on Cloudflare Workers edge"],"whenToPreferThis":"Choose this endpoint when you need a richer statistical summary than Tier 1 offers and your numeric dataset is already in array form. It is ideal for quick one-shot descriptive statistics on a batch of numbers without standing up your own compute. The per-call micropayment model makes it cost-effective for occasional or agent-driven use rather than high-frequency streaming analytics.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:28.389Z","isFirstParty":false,"canonicalSlug":"one-engine-array-stats-pack-tier-2-926fade3"}