{"uid":"cap_Dn-1gvWo7FEz3yWpxEz2m","slug":"x402-merchant-audit-9cf9901c","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/scam-check","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":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_cOl78lVKbHUnTLymQe5GS","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Audits an x402 paid API endpoint for safety before payment, returning reachability, price-drift, settlement history, and on-chain verification.","exampleAgentPrompt":"Before I pay this x402 API, can you run a scam check on https://some-merchant.com/api/service and tell me if it's safe — check if it actually emits 402, whether the price has drifted, and if it has any real settlement history?","exampleUseCases":[{"title":"Scam check before agent pays API","prompt":"I want to use this paid API at https://cool-agent-tool.xyz/api/v1/generate but I'm not sure if it's legit — can you audit it and tell me if it's safe to pay?"},{"title":"Price drift detection on recurring API","prompt":"My agent has been paying https://data-provider.io/feed/prices every day — can you check if the price has drifted recently or if anything looks off before I keep using it?"},{"title":"Verify on-chain settlement history","prompt":"I'm evaluating https://inference-api.net/v1/complete as a paid API — can you check its on-chain USDC inflows and tell me if real buyers have actually settled payments with it?"}],"resultDescription":"Returns a JSON object with a verdict (e.g. CAUTION, SAFE, SCAM), a list of human-readable reasons, and detailed check flags including: whether the endpoint emits HTTP 402, is reachable, has real buyers, shows price drift, and total on-chain USDC inflow over the past 30 days.","failureModes":["Target URL is not reachable — reachable flag returns false, verdict may be CAUTION or SCAM","Target does not emit 402 — emits_402 flag is false, likely not a valid x402 endpoint","No settlement history found — has_buyers false, onchain_inflow_usdc is 0","Price drift detected — price_drift flag true, verdict elevated to CAUTION","Invalid or missing target query parameter — returns 400 or error response","Target URL is malformed or not HTTPS — request rejected"],"whenToPreferThis":"Use this endpoint when an AI agent is about to spend money on an x402-gated API and needs to verify safety first. Ideal for pre-payment due diligence, fraud prevention in autonomous agent pipelines, or evaluating new x402 merchants before integration. Prefer this over generic uptime checks or blockchain explorers when you need a consolidated, x402-specific audit combining live probing, price history, and on-chain settlement data in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:39:47.200Z","isFirstParty":false}