{"uid":"cap_42qwVQ6hIApYZ-WOP1pIo","slug":"one-engine-array-set-pack-t3-2043a607","name":"ONE Engine Array Set Pack T3","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/t3?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"a":{"type":"array"},"b":{"type":"array"}}},"responseSchema":{"type":"json","example":{"tier":3,"result":"Tier-dependent output"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0012","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":"$0.0012/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0012","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0012","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_a8uSxJBkJGd5E2VYvzxpK","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0012","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes a set operation (pack/intersection/union) on two input arrays and returns a tier-3 processed result.","exampleAgentPrompt":"Pack these two arrays together using ONE Engine's array-set-pack utility — array A is [1, 2, 3, 4] and array B is [3, 4, 5, 6] — and give me the tier-3 result.","exampleUseCases":[{"title":"Deduplicating tag sets across datasets","prompt":"I have two lists of tags from different data sources — list A is ['sports','news','tech'] and list B is ['tech','finance','news'] — can you pack them together and get me the combined set result from ONE Engine's array utility?"},{"title":"Finding shared elements in user segments","prompt":"I've got two arrays of user IDs — group A is [101, 202, 303, 404] and group B is [202, 404, 505] — run them through the ONE Engine array-set-pack at tier 3 so I can see what comes back."},{"title":"Merging permission lists for access control","prompt":"I need to combine two permission arrays — permissions A are ['read','write'] and permissions B are ['write','execute','admin'] — use ONE Engine's set-pack API to get the tier-3 packed output."}],"resultDescription":"A JSON object containing 'tier' (set to 3) and 'result' (a tier-dependent packed or combined representation of the two input arrays, such as a union, intersection, or encoded pack structure).","failureModes":["Missing 'a' or 'b' array fields returns a validation error","Non-array values for 'a' or 'b' may cause a 400 bad request","Payment failure (insufficient USDC or x402 issue) results in 402 Payment Required","Empty arrays may produce an empty or trivial result","Cloudflare Worker timeout on very large arrays"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call array set-packing computation on Base via x402 with minimal overhead and no subscription requirement. It is best suited for autonomous agents that need on-demand, cost-controlled set operations on two arrays without spinning up local computation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:43:45.838Z","isFirstParty":false,"canonicalSlug":"one-engine-array-set-pack-t3-2043a607"}