{"uid":"cap_r4-pZiJAZ4km8bnZbvIWZ","slug":"x402-merchant-audit-6752e870","name":"x402 Merchant Audit","description":"Audit any x402 merchant before you pay it. Live probe, price-drift detection, settlement history and on-chain payment verification.","url":"https://merchant-audit.clankerceo.workers.dev/dataset","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","queryParams"],"properties":{"type":{"enum":["http"],"type":"string"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["target"],"properties":{"target":{"type":"string","description":"Absolute https URL of the x402 resource to audit."}}}}},"output":{"type":"object","required":["type"],"properties":{"type":{"enum":["json"],"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"checks":{"emits_402":true,"reachable":true,"has_buyers":false,"price_drift":false,"onchain_inflow_usdc":0},"target":"https://example-merchant.com/api/some-service","reasons":["listed but no settlements in 30d"],"verdict":"CAUTION"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"2","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":"$2/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"2","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"2","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_8JNC3t9TW075u2Anps9S7","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"2","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Live-probes an x402 paid API endpoint to audit its reachability, price drift, settlement history, and on-chain USDC payment verification before you pay it.","exampleAgentPrompt":"Before I pay it, can you audit this x402 endpoint — https://some-merchant.com/api/data — and tell me if it's reachable, whether anyone has actually paid it before, and if the price has drifted?","exampleUseCases":[{"title":"Pre-payment safety check for unknown API","prompt":"I found an x402 API at https://unknown-data-vendor.com/api/premium — before I pay anything, can you audit it and tell me if it's safe, whether it actually emits 402, and if there's any real settlement history?"},{"title":"Detecting abandoned x402 listings","prompt":"Can you check https://old-project.io/api/feed to see if it's still active and has had any buyers in the last 30 days? I don't want to pay for a dead endpoint."},{"title":"On-chain verification before agent automation","prompt":"My agent is about to start auto-paying https://ai-service.xyz/generate for each request — first, audit that merchant to confirm real USDC has flowed to it on-chain and that the price hasn't been drifting."}],"resultDescription":"Returns a JSON object with a verdict (e.g. CAUTION, OK, FAIL), a set of boolean and numeric checks (reachable, emits_402, has_buyers, price_drift, onchain_inflow_usdc), and a human-readable list of reasons explaining the verdict for the target x402 URL.","failureModes":["Target URL is not an x402 endpoint — returns emits_402: false and likely a CAUTION or FAIL verdict","Target host is unreachable — reachable: false in checks","No settlement data found in 30 days — verdict CAUTION with reason 'listed but no settlements in 30d'","Invalid or missing target query parameter — request fails with schema validation error","On-chain data temporarily unavailable — onchain_inflow_usdc may be 0 even for active merchants"],"whenToPreferThis":"Use this endpoint whenever an AI agent is about to make an x402 micropayment to an unfamiliar or untrusted endpoint, or when you want to validate that a listed x402 resource is live, has real buyers, and hasn't changed its price unexpectedly. Prefer this over manual inspection when you need on-chain settlement evidence and a structured PASS/CAUTION/FAIL verdict rather than a raw HTTP probe.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:47:28.488Z","isFirstParty":false}