{"uid":"cap_AZVpgYqNyqW-Z3Ph_MVKk","slug":"mcpfax-payer-graph-coverage-gated-screening-signals-addbf1f6","name":"MCPFax Payer Graph & Coverage-Gated Screening Signals","description":"Know-your-agent payer graph and coverage-gated screening signals","url":"https://mcpfax-reliability.bowling-anthony.workers.dev/payer","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"},"queryParams":{"type":"object"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.008","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":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_baWrTOIp79I3V-tcuoQY9","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns know-your-agent payer graph data and coverage-gated screening signals for x402 API endpoints and their payers","exampleAgentPrompt":"Pull the payer graph and coverage-gated screening signals for this x402 endpoint so I can see who's paid into it, how broad the payer base is, and whether the payer cohort rank looks healthy before I proceed.","exampleUseCases":[{"title":"Pre-transaction payer risk screening","prompt":"Before I send payment to this x402 seller, can you pull the payer graph and screening signals so I know whether their payer base is broad enough and the coverage signals look legitimate?"},{"title":"Know-your-agent due diligence","prompt":"I need to vet this agent as a payer — can you fetch the payer graph data and coverage-gated signals to see their observed payment history, breadth, and how they rank in their cohort?"},{"title":"Marketplace seller payer quality check","prompt":"We're onboarding a new x402 seller to our marketplace — can you check their payer graph and coverage screening signals to see the diversity and quality of their existing payer relationships?"}],"resultDescription":"Returns a payer graph object with know-your-agent data including observed payer relationships, payer breadth metrics, coverage-gated screening signals, and cohort ranking information for x402 endpoints and their associated payers.","failureModes":["Missing or invalid query parameters may return empty or null payer graph","Endpoint or payer not found in coverage data returns empty signals","Payment of 0.002 USDC required per call; unpaid requests return 402 error","Sparse coverage data for new or low-volume endpoints may yield low-confidence signals","Rate limiting or worker errors may return 5xx responses"],"whenToPreferThis":"Use this endpoint when you need to evaluate the payer graph and coverage-gated screening signals for x402 endpoints before committing to a transaction or onboarding a payer or seller. Prefer this over generic credit grading (MCPFax credit grade endpoint) when you specifically need raw payer graph topology and coverage signals rather than a summarized credit score. Best suited for know-your-agent workflows, marketplace due diligence, and pre-transaction screening.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:40:47.497Z","isFirstParty":false}