{"uid":"cap_ub258XrYoP45PqpnSsL6_","slug":"x402-trust-layer-buyer-gate-6ece88dc","name":"x402 Trust Layer Buyer Gate","description":"68 paid x402 trust infrastructure APIs: guard, semantic escrow, mandate diff, certified seller network, KYM, mandates, compliance, disputes, and orchestration.","url":"https://x402trustlayer.xyz/api/trust-network/buyer-gate?utm_source=zero.xyz","method":"POST","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["ok","allowed","certifiedSeller","summary","violations"],"properties":{"ok":{"type":"boolean"},"allowed":{"type":"boolean"},"summary":{"type":"string"},"violations":{"type":"array","items":{"type":"object"}},"certifiedSeller":{"type":"boolean"}}}}}}},"responseSchema":{"type":"json","example":{"ok":true,"allowed":true,"summary":"Buyer passes certified seller gate — proceed to x402 payment","violations":[],"certifiedSeller":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_OMjsz2ELN8QhPQBFfm8vc","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates whether a buyer is authorized to proceed through the certified seller gate before initiating an x402 payment","exampleAgentPrompt":"Before I send the x402 payment to this certified seller API, can you run a buyer gate check to confirm I'm allowed to proceed and that there are no trust violations?","exampleUseCases":[{"title":"Verify buyer eligibility before micropayment","prompt":"I'm about to make a small x402 payment to access this seller's API service. Can you check if I'm authorized to proceed and confirm they're a certified seller?"},{"title":"Screen buyer compliance before API access","prompt":"Before granting my team access to this premium x402 seller network API, I need you to validate that we pass their trust gate and don't have any blocking compliance issues."},{"title":"Check trust violations in payment flow","prompt":"Can you quickly verify our organization is allowed to transact with this certified seller and flag any trust violations that might block the x402 payment?"}],"resultDescription":"Returns a JSON object with: ok (boolean overall success), allowed (boolean whether the buyer may proceed), certifiedSeller (boolean confirming the seller is in the certified network), summary (human-readable explanation), and violations (array of any blocking issues found).","failureModes":["Buyer not authorized: allowed=false with violations array populated explaining the block","Seller not certified: certifiedSeller=false causing gate to deny passage","Malformed request: missing required 'type' or 'method' fields returns validation error","Unsupported HTTP method: method not in [GET, HEAD, DELETE] enum causes rejection","Payment failure: $0.03 USDC x402 payment not completed results in 402 response","Service unavailable: trust network infrastructure down returns 5xx error"],"whenToPreferThis":"Use this endpoint when an AI agent or automated workflow needs to verify buyer eligibility and seller certification status before committing to an x402 micropayment transaction. Prefer this over generic compliance checks when working within the x402 trust infrastructure ecosystem, especially when interacting with APIs in the certified seller network.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-03T00:41:22.938Z","isFirstParty":false,"canonicalSlug":"x402-trust-layer-buyer-gate-6ece88dc"}