{"uid":"cap_SJF3M92v4XnC-tzCWpl9j","slug":"revenue-swarm-x402-audit-x402-payment-compatibility-checker-1b982516","name":"Revenue Swarm x402 Audit — x402 Payment Compatibility Checker","description":"Pay-per-call B2B sales lead and procurement intelligence plus Base wallet data for agents. Search EU tenders/RFPs or inspect a Base wallet. Payments use x402 USDC on Base.","url":"https://eu-tender-x402-v3-production.up.railway.app/api/x402-audit?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"},"queryParams":{"type":"object","required":["url"],"properties":{"url":{"type":"string","description":"Public x402 endpoint to audit"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"score":{"type":"integer"},"checks":{"type":"array","items":{"type":"object"}},"target":{"type":"string"},"product":{"type":"string"},"verdict":{"type":"string"},"warnings":{"type":"array","items":{"type":"string"}},"generated_at":{"type":"string"},"hard_failures":{"type":"array","items":{"type":"string"}}}}}}}},"responseSchema":{"type":"json","example":{"score":100,"checks":[],"product":"x402 Payment Preflight & Settle Check","verdict":"compatible","warnings":[],"hard_failures":[]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3l7xrCn9W8nxR0KBWayiD","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Audits a public x402 endpoint for payment protocol compatibility, returning a score, pass/fail checks, warnings, and hard failures.","exampleAgentPrompt":"Can you audit this x402 endpoint for payment protocol compatibility and give me a score, verdict, and any warnings or hard failures? The URL to check is https://my-api.example.com/api/my-paid-endpoint.","exampleUseCases":[{"title":"Pre-launch x402 API validation","prompt":"Before I list my new pay-per-call API on an x402 facilitator, can you run a compatibility audit on https://my-service.example.com/api/leads and tell me the score, verdict, and any hard failures I need to fix?"},{"title":"Debugging a failing x402 payment flow","prompt":"My x402 endpoint at https://partner-api.example.com/api/rfp-search keeps rejecting payments — can you audit it and show me exactly which checks are failing and what the warnings say?"},{"title":"Verifying a third-party x402 service","prompt":"I'm thinking of integrating with https://third-party.example.com/api/tender-data in my agent — can you run an x402 compatibility audit on it first and tell me if it gets a clean verdict with no hard failures?"}],"resultDescription":"Returns a JSON object containing a numeric compatibility score (0–100), an overall verdict string (e.g. 'compatible'), an array of individual check results, a list of warnings, a list of hard failures, the target URL audited, the product label, and a generated_at timestamp.","failureModes":["Missing or invalid 'url' query parameter returns an error","Target URL is unreachable or returns no x402 headers — audit may return hard failures or incomplete checks","Non-public or firewalled endpoints may produce incomplete audit results","Malformed URL input may cause validation errors","Network timeout on the target endpoint may cause partial results"],"whenToPreferThis":"Use this endpoint when you need to verify that a specific public URL correctly implements the x402 HTTP payment protocol before integrating it, listing it on a facilitator, or including it in an agent workflow. It is the right choice for pre-flight compatibility checking and diagnosing payment flow issues on x402 APIs, rather than for general API health checks or non-x402 payment systems.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T02:24:31.187Z","isFirstParty":false,"canonicalSlug":"revenue-swarm-x402-audit-x402-payment-compatibility-checker-1b982516"}