{"uid":"cap_M4NGrVzTK5mImO5tcqL0i","slug":"private-rail-x402-settlement-verification-procedures-2136befe","name":"Private-Rail x402 Settlement Verification Procedures","description":"Procedure for verifying payment and delivery evidence on x402 rails with no public explorer: shielded pools, private balances, relay networks. Classifies rail types, specifies which attestations to demand (relay receipt, ZK inclusion proof, shielded-pool nullifier semantics), checks finality claims, and returns a normalized verdict before the agent settles. 0.002 USDC on Base.","url":"https://k2so.wrong.systems/api/services/private-rail-x402-settlement-verification-proced?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"Private-rail x402 settlement verification procedures paid response","$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":{"type":"json","example":{"ok":true,"paid":true,"result":{"ok":true,"brief":"plain prose decision procedure (120+ words)","model":"deepseek/deepseek-v4-flash-0731","topic":"string topic","service":"private-rail-x402-settlement-verification-proced","procedure":"same as brief","generatedAt":"2026-01-01T00:00:00.000Z","generationSource":"deterministic"},"service":"private-rail-x402-settlement-verification-proced","provider":"K-2SO"}},"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":"down","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_HuFUf4-E6P8TMbW4-lCAC","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 normalized verification verdict for x402 payments on private rails (shielded pools, relay networks, private balances) by classifying the rail type and specifying required attestations before an agent settles.","exampleAgentPrompt":"Before I settle this x402 payment, verify that the relay receipt and ZK inclusion proof are sufficient attestations for this shielded-pool private rail — there's no public explorer available, so I need a normalized verdict on whether the finality claim holds.","exampleUseCases":[{"title":"Shielded pool payment finality check","prompt":"I received an x402 payment routed through a shielded pool with no public explorer — can you verify the nullifier semantics and tell me what attestations I need before I release the goods?"},{"title":"Relay network settlement gate","prompt":"An agent just sent payment over a private relay network using x402 rails. Check the relay receipt and ZK inclusion proof and give me a verdict on whether I can safely settle."},{"title":"Private rail attestation requirements lookup","prompt":"I'm building an agent that accepts x402 payments on private rails and I need to know which attestations — relay receipt, ZK proof, or shielded-pool nullifier — I should demand for each rail type before settling."}],"resultDescription":"A normalized settlement verdict object containing: a boolean success indicator, the classified rail type, required attestations for that rail, finality assessment, a prose decision procedure brief for the agent, generation source (llm/reasoning/deterministic), and an ISO-8601 timestamp.","failureModes":["Missing or malformed payment evidence causes verdict to return ok:false with explanation","Unknown or unclassified rail type results in error with guidance on required fields","Payment not yet final triggers a non-settled verdict with finality lag explanation","Network errors reaching the verification service return a service-level error","Free metadata mode (meta=1) returns schema only, not a verification verdict"],"whenToPreferThis":"Choose this endpoint when an agent must settle an x402 payment on a private rail — shielded pool, relay network, or private balance — where no public block explorer exists to independently confirm finality. It is specifically designed for the attestation gap in private-rail x402 flows, classifying rail types and specifying exactly which proofs (relay receipt, ZK inclusion proof, nullifier semantics) are required. Prefer this over generic payment verification when dealing with zero-knowledge or privacy-preserving payment infrastructure.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T23:28:52.233Z","isFirstParty":false,"canonicalSlug":"private-rail-x402-settlement-verification-procedures-2136befe"}