{"uid":"cap_DWx57QYGSOPVwMRlS_1Ph","slug":"delx-commerce-seeded-round-robin-start-bc8edd84","name":"Delx Commerce — Seeded Round Robin Start","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-round-robin-start?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"seed":{"type":"string","maxLength":8192,"description":"Seed supplied to Seeded Round Robin Start; used only for this bounded calculation and processed in memory without retention."},"member_count":{"type":"integer","description":"Member Count supplied to Seeded Round Robin Start; used only for this bounded calculation and processed in memory without retention."}}},"responseSchema":{"type":"json","example":{"result":{"start_index":4,"member_count":7},"schema":"delx/util-seeded-round-robin-start/v1","status":"pass","evidence":{"retained":false,"input_sha256":"40cb4e4bb3e1dab089d71313a59ec0aa2f02317e2e48c56a5e4981cc84c221f5","external_calls":0},"operation":"seeded_decision:seeded_round_robin_start"}},"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_aeQC0LrYSVRSxkQUCsSzO","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 selects a starting index for round-robin distribution given a seed string and a member count, with verifiable no-retention processing.","exampleAgentPrompt":"Using seed 'user-abc123' and 7 team members, compute the starting index for a seeded round-robin distribution so I know which member goes first.","exampleUseCases":[{"title":"Agent fleet task distribution","prompt":"I have 12 worker agents and want to distribute incoming jobs fairly. Use the seed 'job-batch-2024-06' and 12 members to get the starting index for a seeded round robin so each batch starts from a different agent."},{"title":"Reproducible team rotation scheduling","prompt":"We rotate on-call duty across 5 engineers each week. Use the seed 'oncall-week-42' and member count 5 to deterministically pick which engineer starts the rotation this week."},{"title":"Consistent shard assignment for requests","prompt":"I need to assign requests consistently to one of 8 shards without randomness. Compute the seeded round-robin start using seed 'tenant-xyz-2024' and 8 members so I get the same result every time for that tenant."}],"resultDescription":"Returns a JSON object containing a `start_index` (the deterministically computed starting position within the round-robin) and `member_count` (echoed back), along with a verifiable evidence block including an input SHA-256 hash, confirmation that no data was retained, and a count of zero external calls made during processing.","failureModes":["Missing required fields (seed or member_count) result in a validation error","member_count of zero or negative may cause a divide-by-zero or invalid range error","Seed strings exceeding 8192 characters will be rejected","Payment failure via x402 results in a 402 response before computation occurs","Malformed JSON body returns a 400 bad request"],"whenToPreferThis":"Choose this endpoint when you need a deterministic, reproducible starting index for round-robin task or resource distribution — especially when auditability and verifiable no-retention processing matter. It is ideal for AI agent orchestration scenarios where you need consistent, seed-driven assignment without storing inputs. Prefer it over custom hashing logic when you need cryptographic evidence (SHA-256 of input) confirming the computation was clean.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T04:41:11.127Z","isFirstParty":false,"canonicalSlug":"delx-commerce-seeded-round-robin-start-bc8edd84"}