{"uid":"cap_SUqlUpWImGHgHUF4OPI_U","slug":"one-engine-array-set-pack-tier-9-b5a5b116","name":"ONE Engine Array Set Pack (Tier 9)","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-set-pack/t9?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"a":{"type":"array"},"b":{"type":"array"}}},"responseSchema":{"type":"json","example":{"tier":9,"result":"Tier-dependent output"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_6Xq_h_QsgjkeBiTwDse_u","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Packs two input arrays into a set-based structure using tier-9 processing, returning a tier-dependent combined result.","exampleAgentPrompt":"Pack these two arrays into a set for me — array A is [1, 2, 3, 4] and array B is [3, 4, 5, 6].","exampleUseCases":[{"title":"Deduplicating tag lists across datasets","prompt":"I have two lists of tags from different sources — [\"news\",\"sports\",\"tech\"] and [\"tech\",\"finance\",\"sports\"] — can you pack them into a unified set so I can remove duplicates?"},{"title":"Merging permission sets for access control","prompt":"Pack these two permission arrays together into a set: [\"read\",\"write\"] and [\"write\",\"execute\",\"delete\"], so I can see the combined unique permissions."},{"title":"Combining product category arrays","prompt":"I've got two product category arrays from my catalog — [\"shoes\",\"bags\",\"hats\"] and [\"bags\",\"jackets\",\"scarves\"] — please pack them into a single set result."}],"resultDescription":"A JSON object containing a tier field (value: 9) and a result field with the tier-9-processed packed set output derived from combining arrays A and B.","failureModes":["Missing or non-array inputs for 'a' or 'b' fields returns a validation error","Payment failure via x402 on Base results in a 402 response blocking execution","Empty arrays may return an empty or trivial result depending on tier logic","Malformed JSON body returns a 400 bad request error","Network or worker timeout may return a 5xx error on the Cloudflare edge"],"whenToPreferThis":"Choose this endpoint when you need a low-cost ($0.01 USDC), pay-per-call set-packing operation on two arrays within an autonomous agent pipeline running on Base/x402. Ideal for agentic workflows that need lightweight, on-demand array set operations without standing up custom infrastructure. Prefer this over general-purpose code execution when you want a metered, trustless utility call with crypto micropayment settlement.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:11.932Z","isFirstParty":false,"canonicalSlug":"one-engine-array-set-pack-tier-9-b5a5b116"}