{"uid":"cap_xX5BqFGQr2swSpdKO-kX9","slug":"x402intel-seller-attribution-intelligence-c3193282","name":"x402intel Seller Attribution Intelligence","description":"x402 seller attribution intelligence: reported calls versus catalog-attributed on-chain USDC flow, payer-address concentration and forensic signals. Attribution is not protocol or fraud proof.","url":"https://api.x402intel.uk/x402-authenticity/:payTo?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object","required":["payTo"],"properties":{"payTo":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$"}},"additionalProperties":false},"queryParams":{"type":"object","properties":{},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{},"additionalProperties":true}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_O8XOzk-gFGrTD9-7g53GM","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns attribution analysis for an x402 payTo address, comparing reported API calls to catalog-attributed on-chain USDC flows with payer concentration and forensic signals.","exampleAgentPrompt":"Pull the x402 attribution intelligence report for payTo address 0x4a3b...c9d2 — I want to see whether their reported API calls line up with actual on-chain USDC flow, any payer concentration flags, and the forensic signals.","exampleUseCases":[{"title":"Auditing a suspicious x402 seller","prompt":"I'm considering buying from an x402 seller with payTo address 0xABCD...1234 — can you check their attribution intel to see if their claimed call volume actually matches the USDC flowing on-chain, and flag any payer concentration issues?"},{"title":"Marketplace due diligence before listing","prompt":"Before we feature this x402 API in our catalog, run the attribution authenticity check on their payTo address 0x9f2e...88a1 and tell me if the on-chain USDC receipts are consistent with what they're reporting."},{"title":"Forensic investigation of payment anomalies","prompt":"I noticed some weird patterns in payments to 0x7c1d...5fe3 on the x402 network — run the seller attribution intelligence on that address and show me the forensic signals and payer concentration breakdown."}],"resultDescription":"Returns a structured report for the given payTo address including: ratio of reported API calls to catalog-attributed on-chain USDC flow, payer address concentration metrics, forensic anomaly signals, and an overall attribution quality assessment. Note: attribution is not protocol-enforced or fraud-proof.","failureModes":["Unknown payTo address returns empty or null attribution data","Addresses with no on-chain USDC activity return zero-flow reports with limited forensic signals","Rate limiting or payment failure returns 402 or 429 error","Malformed wallet address format triggers a 400 validation error","Newly registered sellers may have insufficient history for meaningful attribution"],"whenToPreferThis":"Use this endpoint when you need to cross-reference an x402 seller's self-reported API usage against verifiable on-chain USDC flows for a specific payTo address. Prefer this over generic blockchain explorers when you want pre-computed concentration metrics and forensic signals specific to the x402 marketplace ecosystem.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T03:40:29.984Z","isFirstParty":false,"canonicalSlug":"x402intel-seller-attribution-intelligence-c3193282"}