{"uid":"cap__RTzopcVcRtcx08uD6c0j","slug":"delx-commerce-seeded-shuffle-0f84c7d8","name":"Delx Commerce — Seeded Shuffle","description":"Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.","url":"https://commerce.delx.ai/api/v1/x402/seeded-shuffle?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"seed":{"type":"string","maxLength":8192,"description":"Seed supplied to Seeded Shuffle; used only for this bounded calculation and processed in memory without retention."},"items":{"type":"array","items":{"type":"string","maxLength":8192},"maxItems":256,"description":"Items supplied to Seeded Shuffle; used only for this bounded calculation and processed in memory without retention."}}},"responseSchema":{"type":"json","example":{"result":{"count":4,"items":["c","d","a","b"]},"schema":"delx/util-seeded-shuffle/v1","status":"pass","evidence":{"retained":false,"input_sha256":"b0b0f77561c04919df180b7c85f4087b8944df4491dda150370c45e90452cad7","external_calls":0},"operation":"seeded_decision:seeded_shuffle"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_o1BynejBOpHMgHMbDfMUZ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Deterministically shuffles a list of string items using a provided seed, returning a verifiable, reproducible ordering with no data retention.","exampleAgentPrompt":"Shuffle the list ['alice','bob','carol','dave'] using the seed 'round1' and give me the deterministic ordering — I need it to be reproducible and verifiable.","exampleUseCases":[{"title":"Reproducible tournament bracket seeding","prompt":"I need to randomly order these 8 team names ['Eagles','Lions','Bears','Wolves','Sharks','Foxes','Hawks','Owls'] for a tournament bracket, using the seed 'season2024' so the draw is reproducible and anyone can verify it."},{"title":"Deterministic quiz question ordering","prompt":"Shuffle these 5 quiz questions ['Q1','Q2','Q3','Q4','Q5'] with the seed 'quizA-attempt1' so every student who gets the same attempt code sees the same order."},{"title":"Verifiable random assignment of tasks","prompt":"Take this list of tasks ['design','backend','testing','docs'] and shuffle them with seed 'sprintweek12' so we can fairly and reproducibly assign them to team members and prove the order wasn't manipulated."}],"resultDescription":"Returns a JSON object containing the shuffled list of items with a count, a status of 'pass', an evidence block confirming no data was retained and no external calls were made, the SHA-256 hash of the input for verifiability, and a schema identifier.","failureModes":["Items array exceeds 256 items — request rejected","Seed or item string exceeds 8192 character limit — request rejected","Malformed JSON input — bad request error","Payment not received or insufficient USDC — 402 Payment Required","Network timeout during processing"],"whenToPreferThis":"Choose this endpoint when you need a deterministic, reproducible, and verifiably tamper-free shuffle of a list — especially in agent workflows where auditability matters (e.g. tournaments, lotteries, task assignment). Prefer it over in-process shuffles when you need cryptographic evidence of fairness (input hash, no external calls, no data retention) and when paying per-result without signup friction is acceptable via x402/USDC.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T00:53:54.423Z","isFirstParty":false,"canonicalSlug":"delx-commerce-seeded-shuffle-0f84c7d8"}