{"uid":"cap_eZ7CtAYsQrUq5yRnHByL_","slug":"per-rail-x402-facilitator-acceptance-decision-procedure-for-non-base-594009a1","name":"Per-Rail x402 Facilitator Acceptance Decision Procedure for Non-Base Rails","description":"Decision procedure for agents buying x402 services on non-Base rails (XRPL, SKALE, Solana). Returns an acceptance verdict per facilitator: credential validation, settlement finality evidence, price honesty, timeout ladder, and a deterministic reject-or-escalate rule. Run before spending on a new rail.","url":"https://k2so.wrong.systems/api/services/per-rail-x402-facilitator-acceptance-for-non-bas?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"Per-rail x402 facilitator acceptance ladder for XRPL and non-Base rails paid response","$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":"per-rail-x402-facilitator-acceptance-for-non-bas","procedure":"same as brief","generatedAt":"2026-01-01T00:00:00.000Z","generationSource":"deterministic"},"service":"per-rail-x402-facilitator-acceptance-for-non-bas","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":"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_Uem78JWCliGmTsbwt-K9n","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 plain-prose LLM-generated decision procedure brief explaining whether and how an x402 facilitator will accept payments on non-Base blockchain rails (e.g. XRPL)","exampleAgentPrompt":"I need a decision procedure brief explaining how an x402 facilitator evaluates acceptance for non-Base rails like XRPL — give me the full prose guide so I can decide which payment route to use.","exampleUseCases":[{"title":"Evaluating XRPL as an x402 payment rail","prompt":"Can you get me the decision procedure for whether an x402 facilitator will accept XRPL as a payment rail? I want to understand the acceptance criteria before routing my agent's payments there."},{"title":"Autonomous agent multi-rail payment routing logic","prompt":"My agent is about to pay for a service on a non-Base chain — pull the x402 facilitator acceptance ladder brief so it can decide whether this rail is viable before sending funds."},{"title":"Comparing acceptance policies across x402 rails","prompt":"I'm building an agent that needs to pick between multiple payment rails for x402 transactions. Get me the facilitator acceptance decision procedure for non-Base rails so I can hardcode the right logic."}],"resultDescription":"A JSON object containing a plain-prose 'brief' field (120+ words) describing the decision procedure an x402 facilitator uses to evaluate acceptance for non-Base rails such as XRPL, along with the topic, model name used for generation, ISO-8601 generation timestamp, generation source enum (llm/reasoning/deterministic), service slug, provider name (K-2SO), and payment confirmation fields.","failureModes":["HTTP 402 returned if USDC payment not yet settled — agent must pay exact amount and retry with PAYMENT-SIGNATURE header","Malformed or missing 'input.type' or 'input.method' fields cause validation errors","Topic override may produce off-topic or generic briefs if not well-scoped","LLM-generated briefs may vary in quality or specificity across calls","Non-idiomatic HTTP methods (POST, PUT) rejected — only GET/HEAD/DELETE accepted"],"whenToPreferThis":"Choose this endpoint when an autonomous agent needs to programmatically determine whether a specific non-Base blockchain rail (e.g. XRPL) will be accepted by an x402 facilitator before routing a payment. Prefer this over general x402 documentation when you need a structured, agent-consumable decision brief with explicit acceptance criteria rather than human-readable docs. Most useful when building payment routing logic for multi-rail x402 agents or validating rail compatibility at runtime.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T12:42:27.615Z","isFirstParty":false,"canonicalSlug":"per-rail-x402-facilitator-acceptance-decision-procedure-for-non-base-594009a1"}