{"uid":"cap_PMNsNHDEh14omLZ_K8QOY","slug":"x402-endpoint-preflight-inspector-0720e55a","name":"x402 Endpoint Preflight Inspector","description":"Machine-payable service intelligence for discovering, verifying, and monitoring identity, risk, authorization, execution-preflight, and evidence APIs before autonomous agents spend.","url":"https://base-agent-preflight.bytoken2023.workers.dev/v1/x402/web/endpoint-preflight?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"network":"eip155:8453","product":"x402-endpoint-preflight","assessment":{"flags":[],"risk_level":"low","risk_score":0}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.015","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":"$0.015002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_p_weAwMEEZue6_tBcchYg","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.015002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Inspects a public HTTP/HTTPS x402-payment-gated URL and returns risk assessment, network metadata, and safety flags without actually paying the endpoint's fee.","exampleAgentPrompt":"Before we pay for it, can you do a preflight safety check on this x402 endpoint — https://api.example.com/v1/some-paid-resource — and tell me the risk score and any flags it raises?","exampleUseCases":null,"resultDescription":"Returns a JSON object containing the Base network identifier (e.g. eip155:8453), product name, and an assessment object with a risk_score (numeric), risk_level (e.g. 'low'), and an array of flags describing any detected issues. May also include activity, identity, and provenance sub-objects with additional metadata about the endpoint.","failureModes":["URL is not a valid HTTP/HTTPS address — returns validation error","Target URL is unreachable or returns non-x402 response — may return empty or error assessment","URL exceeds 2048 character limit — schema validation failure","Non-GET method specified — rejected by schema constraint","Target endpoint is private or firewalled — inspection returns incomplete data"],"whenToPreferThis":"Use this endpoint when an autonomous agent needs to evaluate an x402-gated URL before committing payment, specifically to get a machine-readable risk score and safety flags. Prefer this over generic URL checkers when working within the x402 payment protocol ecosystem on Base network, as it understands x402-specific metadata, identity, and provenance signals.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T18:42:58.201Z","isFirstParty":false,"canonicalSlug":"x402-endpoint-preflight-inspector-0720e55a"}