{"uid":"cap_NqtxOhQ0RFlNPUpw_K_27","slug":"revenue-swarm-x402-payment-preflight-audit-86006455","name":"Revenue Swarm x402 Payment Preflight & Audit","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-v2-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_Qm1bUnb-86rPhlQGHSOJT","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":"Validates x402 USDC payment compatibility for a Base wallet or endpoint before committing a pay-per-call transaction","exampleAgentPrompt":"Run an x402 payment preflight audit to check if my Base wallet is compatible and ready to make USDC pay-per-call API calls — I need to see the score, verdict, and any hard failures before I proceed.","exampleUseCases":[{"title":"Pre-flight check before agent API spend","prompt":"Before my agent starts calling those pay-per-call EU tender search APIs, run an x402 audit on my Base wallet to confirm it's fully compatible and there are no hard failures — show me the score and verdict."},{"title":"Debugging a failing x402 payment","prompt":"My agent's x402 USDC payments on Base keep failing — can you run the x402 audit endpoint to check for hard failures or warnings in my payment setup so I can figure out what's wrong?"},{"title":"Onboarding new agent to x402 APIs","prompt":"I'm setting up a new AI agent to use pay-per-call machine APIs with x402 on Base — can you do a compatibility preflight check first and tell me if the score is 100 and the verdict is compatible?"}],"resultDescription":"Returns a JSON object with a numeric compatibility score (0-100), a verdict string ('compatible' or otherwise), an array of checks performed, a list of warnings, and a list of hard failures — letting the caller know whether the x402 payment flow is ready to proceed.","failureModes":["Wallet address not provided or malformed — returns error or low score","x402 payment parameters missing or incompatible — reflected as hard_failures in response","Network issues reaching Base — connection timeout","USDC balance insufficient for preflight — flagged in warnings","Railway app cold start causing slow initial response"],"whenToPreferThis":"Use this endpoint when you need to verify x402 USDC payment compatibility on Base before executing pay-per-call API calls, especially when onboarding a new agent wallet or debugging payment failures. Prefer this over simply attempting a live call when you want to avoid spending USDC on a transaction that will fail, or when you need a structured audit report with scores and hard-failure diagnostics.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T02:00:14.769Z","isFirstParty":false,"canonicalSlug":"revenue-swarm-x402-payment-preflight-audit-86006455"}