{"uid":"cap_WSynnm1ySpBL5r5od2sYi","slug":"agoranome-buyer-check-1336afb7","name":"Agoranome Buyer Check","description":"Tools for x402 sellers and buyers, paid per call in USDC by the agents that use them. For sellers: a listing lint and a 402 conformance run, a Bazaar rank check, a Machine Buyer Panel that tests whether buyer agents pick your offer over its rivals, signed samples, Fair Offer certification, a model-update watch, and a demand gap finder for what to build next. For buyers: a signed Buyer check on any offer before paying (or settlement proof after), a buyer drill that red-teams an x402 client against nine traps, a wallet overspend audit, and free checks of any seller's offer. Every paid tool has a free sample. Agoranome pledges 15% of settled revenue to a cause.","url":"https://api.agoranome.com/v1/buyer/check?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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["url"],"properties":{"tx":{"type":"string","description":"Settlement mode: the payment's transaction hash on Base"},"url":{"type":"string","description":"The x402 offer's URL (the paid route)"},"share":{"type":"boolean","description":"Settlement mode: publish the buyer-side receipt in the evidence commons"},"pay_to":{"type":"string","description":"The quoted pay-to address, to compare"},"max_price":{"type":"number","description":"Your per-call cap in USD (default 1)"},"accept_proof":{"type":"string","description":"Your requirements, as an Accept-Proof value"},"expected_price":{"type":"number","description":"The quoted price in USD, to compare"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"result":{"mode":"verdict","pay_to":{"current":["0x..."],"changed_30d":false},"policy":{"tiers":{"any":true,"sampled":true,"delivered":true}},"summary":"Meets the sampled tier. Block valid; certified and passing since 2026-10-20; one pay-to for 41 days; price at listing; 12 verified deliveries in 30 days.","concerns":[]},"receipt":{"impact":{"pledge":"15% of settled revenue"},"receipt_id":"0x..."}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Vk7mywFuh-iA-yP_w6BfM","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies an x402 offer's trustworthiness before payment, or validates a settlement proof after paying, returning a structured verdict with policy tiers and concerns","exampleAgentPrompt":"Before my agent pays this x402 API at https://api.example.com/v1/data, run an Agoranome buyer check on it with a max price cap of $0.05 to make sure the pay-to address is stable and there are no concerns.","exampleUseCases":[{"title":"Pre-payment safety check on x402 offer","prompt":"Before paying this x402 route at https://api.someservice.com/v1/results, check it with Agoranome — my price cap is $0.10 and the quoted pay-to is 0xAbC123, I want to make sure it's certified and nothing looks off."},{"title":"Verify settlement proof after paying","prompt":"My agent just paid the x402 API at https://api.datavendor.com/feed — the transaction hash is 0xDEF456. Can you run an Agoranome buyer check in settlement mode to confirm the payment went to the right place and get a receipt?"},{"title":"Automated offer vetting before agent fleet pays","prompt":"Every time one of my buyer agents encounters a new x402 offer URL it hasn't seen before, check it through Agoranome first with a $0.25 max price cap and flag any concerns before allowing payment."}],"resultDescription":"A JSON verdict object containing: the trust mode (verdict or settlement), the current pay-to address(es) with a flag indicating if they changed in the last 30 days, the policy tier achieved (any/sampled/delivered), a human-readable summary of the offer's standing, and a list of any concerns. Also includes a receipt with an impact pledge note and a receipt ID.","failureModes":["URL not found or not an x402 offer — returns error indicating no 402 response detected","Pay-to address mismatch — returns concern flagging discrepancy between quoted and actual address","Price exceeds max_price cap — returns concern or rejection before payment","Transaction hash invalid or not found on Base — settlement mode fails with lookup error","Offer has no certified history — verdict may indicate lower tier with concerns listed","Network timeout reaching the x402 URL — returns error with connectivity details"],"whenToPreferThis":"Use this endpoint when a buyer agent needs to vet an x402 offer before committing USDC, especially when encountering a new or unfamiliar seller, when the pay-to address or price needs cross-checking against a quote, or when verifying a settlement after payment. Prefer this over manual inspection because it checks pay-to address stability over 30 days, verifies Fair Offer certification status, and counts verified deliveries — signals no simple HTTP HEAD request can provide.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T12:31:03.269Z","isFirstParty":false,"canonicalSlug":"agoranome-buyer-check-1336afb7"}