{"uid":"cap_ypQUiMyM3oxNc8v06tu03","slug":"agent-buyer-identity-preflight-x402-purchase-governance-42104874","name":"Agent Buyer Identity Preflight | x402 Purchase Governance","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/agent/buyer-policy-kit","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":[],"properties":{"format":{"enum":["manifest","policy","quickstart"],"type":"string","description":"Delivery format. manifest returns the full kit manifest."},"buyer_type":{"enum":["developer","startup","enterprise"],"type":"string","description":"Buyer segment for install and integration guidance."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"network":{"type":"string"},"product":{"type":"string"},"activity":{"type":"object"},"identity":{"type":"object"},"assessment":{"type":"object"},"provenance":{"type":"object"}}}}}}},"responseSchema":{"type":"json","example":{"network":"eip155:8453","product":"agent-buyer-policy-kit","assessment":{"flags":[],"risk_level":"low","risk_score":0}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"49","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":"$49/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"49","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"49","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ZhPXXtYUYdD6-Bxy_knQb","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"49","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Performs a pre-purchase policy check to verify whether an AI agent's buyer role, segment, and context meet the approval criteria for a given x402-gated API, dataset, or tool.","exampleAgentPrompt":"Before you spend any USDC on that x402 API, run a preflight policy check for our enterprise buyer segment and get the full manifest so we know the risk level and any flags before committing.","exampleUseCases":[{"title":"Enterprise agent pre-purchase compliance check","prompt":"Before our autonomous agent buys that x402 dataset, run a preflight policy check for the enterprise buyer type and return the full policy manifest so I can see the risk score and any compliance flags."},{"title":"Developer validating x402 tool purchase eligibility","prompt":"I'm a developer trying to buy access to an x402-gated tool — can you do a buyer policy preflight check for the developer segment and show me a quickstart format so I know if I'm eligible?"},{"title":"Startup agent risk assessment before API spend","prompt":"Our startup's AI agent is about to purchase an x402 API on Base — run a SignGate preflight check for the startup buyer type and tell me the risk level and any flags before it goes through."}],"resultDescription":"Returns a JSON object containing the network (e.g. eip155:8453 for Base), product identifier, and a full assessment block with risk_score, risk_level, and flags array. May also include identity, activity, and provenance sub-objects depending on the format requested (manifest, policy, or quickstart).","failureModes":["Missing or invalid buyer_type enum value results in a validation error","Unsupported format parameter returns an error or empty response","High-risk agent identity or policy mismatch may return elevated risk_level with disqualifying flags","Network or worker availability issues on Cloudflare may cause timeouts","Payment of $49 USDC required per call — unpaid requests return HTTP 402"],"whenToPreferThis":"Use this endpoint when an AI agent needs to perform a pre-purchase governance check before spending USDC on an x402-gated resource. It is specifically designed for the x402 protocol ecosystem on Base network and provides structured risk assessment, buyer segment filtering, and policy manifests — making it the right choice over generic identity checks when the purchase involves x402 payment gating and autonomous agent buyers.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:53:18.158Z","isFirstParty":false}