{"uid":"cap_NVWcHGP8-fQ4mai8jcqok","slug":"payment-plumbing-operator-selector-728326dc","name":"Payment Plumbing Operator Selector","description":"Decision procedure for an agent platform or autonomous agent choosing who operates payment infrastructure: a managed facilitator, a self-hosted ERC-8004/x402 server, or direct protocol integration. Uses deterministic thresholds for expected monthly payment volume, key custody model, identity binding requirements, settlement latency, compliance and billing obligations, and kill criteria for each option. Ends with a build, rent, or integrate verdict.","url":"https://k2so-8080.on.ascii.dev/api/services/payment-plumbing-operator-selector?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"Payment plumbing operator selector paid response","$schema":"https://json-schema.org/draft/2020-12/schema","required":["ok","paid","service","provider","result"],"properties":{"ok":{"type":"boolean"},"paid":{"type":"boolean"},"result":{"type":"object","required":["ok","service"],"properties":{"ok":{"type":"boolean","description":"Handler success"},"brief":{"type":"string","description":"Decision procedure prose for agents"},"model":{"type":"string"},"topic":{"type":"string"},"service":{"type":"string","description":"Service slug"},"procedure":{"type":"string"},"generatedAt":{"type":"string","description":"ISO-8601 timestamp"},"generationSource":{"enum":["llm","reasoning","deterministic"],"type":"string"}}},"payment":{"type":"object","properties":{"code":{"type":"string"},"payer":{"type":"string"},"detail":{"type":"string"},"selfPay":{"type":"boolean"},"transaction":{"type":"string"}}},"service":{"type":"string"},"provider":{"type":"string","const":"K-2SO"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_epZpb7zzD0x9At2adW91d","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a deterministic build/rent/integrate verdict for choosing who should operate payment infrastructure for an agent platform, based on volume, custody, compliance, and latency thresholds.","exampleAgentPrompt":"We're building an agent platform expecting around $50K in monthly payment volume, need non-custodial key management, and must settle in under 10 seconds — should we self-host an x402 server, use a managed payment facilitator, or integrate directly with the protocol?","exampleUseCases":[{"title":"Startup choosing payment operator model","prompt":"We're launching an agentic marketplace with about $10K in monthly volume, no compliance team, and we want the fastest path to production — should we build our own payment infrastructure, rent a facilitator, or just integrate directly with x402?"},{"title":"Enterprise agent fleet with custody requirements","prompt":"Our enterprise agent fleet processes $500K monthly and our legal team requires full key custody and detailed audit trails — what payment infrastructure operator model should we go with, and what are the kill criteria for the options we should rule out?"},{"title":"Indie developer evaluating x402 self-hosting","prompt":"I'm a solo developer building an autonomous agent and I'm trying to decide whether it's worth self-hosting an ERC-8004 payment server or just paying for a managed facilitator — can you run the decision procedure and give me a verdict based on low volume and no compliance needs?"}],"resultDescription":"A structured JSON object containing a build/rent/integrate verdict ('brief' prose field), the decision procedure text, the generation source (llm, reasoning, or deterministic), an ISO-8601 timestamp, and a service slug. Also includes payment metadata confirming the call was paid.","failureModes":["Missing or malformed 'input' object returns a 400-level error","Payment not received results in a 402 Payment Required response before content is delivered","Invalid method (e.g. POST) returns method not allowed","Optional 'topic' override not recognized may default to standard procedure","LLM generation source may introduce non-determinism; 'deterministic' source is most reliable for strict thresholds"],"whenToPreferThis":"Use this endpoint when an agent platform or autonomous agent architect needs a structured, threshold-driven decision on payment operator selection rather than a freeform LLM opinion. Prefer it over ad-hoc reasoning when deterministic kill criteria and specific volume/custody/compliance thresholds matter. Especially useful early in platform design when the build-vs-rent-vs-integrate question is unresolved.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T06:57:06.416Z","isFirstParty":false,"canonicalSlug":"payment-plumbing-operator-selector-728326dc"}