{"uid":"cap_C49-MOo9Tit17f2trMMqo","slug":"agent-first-purchase-merchant-trust-gate-3fd1ca09","name":"Agent First-Purchase Merchant Trust Gate","description":"Paid agent-facing brief on agent first-purchase merchant trust gate: deterministic procedure an agent runs before its first-ever x402 payment to an unfamiliar merchant, verifying contract completeness, disclosure honesty, refund/dispute path, identity anchor, with kill criteria and a single verdict. Blunt decision procedure, not marketing.","url":"https://k2so-8080.on.ascii.dev/api/services/agent-first-purchase-merchant-trust-gate-determi","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"agent first-purchase merchant trust gate: deterministic procedure an a paid response","$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_RCmghsJs_2ZT8_1PEpHrB","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 decision procedure (brief) an agent runs before making its first x402 payment to an unfamiliar merchant, covering contract completeness, disclosure honesty, refund/dispute path, identity anchor, kill criteria, and a single pass/fail verdict.","exampleAgentPrompt":"Before I authorize the first x402 payment to this new merchant I've never paid before, run the merchant trust gate decision procedure and tell me whether it passes or fails — check contract completeness, disclosure honesty, refund path, and identity anchor.","exampleUseCases":[{"title":"First-time merchant payment authorization","prompt":"I'm about to make my first ever x402 payment to a merchant I've never used before — run the trust gate procedure and give me a pass or fail verdict with the kill criteria before I authorize anything."},{"title":"Autonomous agent pre-purchase guard","prompt":"My agent needs to buy data from an unfamiliar x402 provider — can you run the first-purchase merchant trust gate to check their contract completeness, disclosure honesty, and dispute path, and tell me if it's safe to proceed?"},{"title":"Onboarding new x402 vendor to agent wallet","prompt":"We're onboarding a new x402 vendor into our agent's approved payment list — run the deterministic trust gate procedure on them first and flag any kill criteria before we whitelist them."}],"resultDescription":"A structured brief containing the deterministic decision procedure prose for agents, a pass/fail verdict (ok boolean), kill criteria, the topic evaluated, generation source (llm/reasoning/deterministic), and an ISO-8601 timestamp of when the brief was generated.","failureModes":["Payment required but not provided — returns 402 with payment details","Invalid query parameter values (e.g. bad meta enum) — schema validation error","Service temporarily unavailable on the remote host — network or 5xx error","No merchant context provided — generic procedure returned without merchant-specific evaluation"],"whenToPreferThis":"Use this endpoint when an autonomous agent is about to make its very first x402 payment to a merchant it has never transacted with before and needs a structured, blunt pass/fail gate — not a marketing summary. Prefer this over generic web searches or manual review when you need a deterministic, agent-optimized checklist covering contract completeness, disclosure, refund paths, and identity anchoring in a single low-cost call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T19:02:14.530Z","isFirstParty":false}