{"uid":"cap_PCeAfB88w1SPPsqADTEcA","slug":"one-engine-array-set-pack-tier-10-4f746673","name":"ONE Engine Array Set Pack (Tier 10)","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/t10?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"a":{"type":"array"},"b":{"type":"array"}}},"responseSchema":{"type":"json","example":{"tier":10,"result":"Tier-dependent output"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.015","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":"$0.015/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Ijtw-jsTvTFG9Fj-4lx6C","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.015","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes a tier-10 set operation (pack) on two input arrays, returning a tier-dependent result via a pay-per-call API on Base.","exampleAgentPrompt":"Pack these two arrays together using the ONE Engine tier-10 set-pack: array A is [1, 2, 3, 4] and array B is [3, 4, 5, 6].","exampleUseCases":[{"title":"Deduplicating two data lists","prompt":"I have two lists of user IDs from different sources — [101, 102, 103] and [102, 103, 104, 105] — can you pack them together using ONE Engine's tier-10 array set-pack so I get a combined deduplicated set?"},{"title":"Merging agent output arrays","prompt":"My agent pipeline produced two separate result arrays, [\"alpha\",\"beta\",\"gamma\"] and [\"gamma\",\"delta\"], and I need to pack them into a single set using the ONE Engine tier-10 set-pack endpoint."},{"title":"Combining feature flag lists","prompt":"I've got two feature flag arrays — [\"featureA\",\"featureB\"] and [\"featureB\",\"featureC\",\"featureD\"] — please run them through the ONE Engine tier-10 array set-pack and give me the packed result."}],"resultDescription":"A JSON object containing a 'tier' field (value: 10) and a 'result' field with the tier-dependent packed output of the two input arrays, representing the set-pack computation result.","failureModes":["Missing or malformed 'a' or 'b' array inputs return an error response","Payment failure via x402 on Base prevents call execution","Non-array values passed as 'a' or 'b' may cause validation errors","Empty arrays may yield trivial or empty packed results","Cloudflare Worker timeout if arrays are extremely large"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call set packing operation on two arrays at tier 10, particularly within autonomous agent workflows that use x402 micropayments on Base. It is well-suited for agents that need on-demand array combination without managing server infrastructure.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:04.102Z","isFirstParty":false,"canonicalSlug":"one-engine-array-set-pack-tier-10-4f746673"}