{"uid":"cap_oOnzjdnKHKguLUPhfO3GU","slug":"aeml-x402-tier-3-payment-receipt-12d97fba","name":"aeml-x402 Tier 3 Payment Receipt","description":"Tiered payment receipt (tier 3): pay once with x402 and get back a short-lived receipt token that /pay/verify checks for you. The tier is fixed by the path - you do not send it. Optional ?ref= carries your own opaque reference, such as a query hash, straight through to the receipt. This mints a receipt rather than returning data, so there is no lookup that can come back empty.","url":"https://aeml-x402.zeabur.app/pay/tier3","method":"GET","headers":{},"bodySchema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"ref":{"type":"string","description":"optional - opaque reference such as a query hash"},"tier":{"type":"string","description":"optional - ignored; fixed to 3 by this path"}},"additionalProperties":false}}},"output":{"type":"object","required":["type"],"properties":{"type":{"const":"json"}}}}},"responseSchema":{"type":"json"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Dl2Z59NHd7I0k3hsz6e3L","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Issues a short-lived signed payment receipt for tier 3 access after processing a $0.10 USDC x402 payment on Base, verifiable via /pay/verify.","exampleAgentPrompt":"Pay $0.10 USDC via x402 on Base to get a signed tier 3 access receipt I can use to verify my payment with the gauge-frontdesk service.","exampleUseCases":[{"title":"Unlock tier 3 data access","prompt":"I need to access the tier 3 data endpoint — please pay the $0.10 USDC x402 fee and get me back the signed receipt so I can pass it to /pay/verify."},{"title":"Attach receipt to tracked query","prompt":"Pay for tier 3 access with USDC and include the ref hash 'abc123' so the receipt can be linked back to my specific query."},{"title":"Automate paid API credentialing","prompt":"Every time my workflow needs tier 3 access, pay the x402 micropayment in USDC on Base and retrieve the short-lived signed receipt to authorize the request."}],"resultDescription":"Returns a JSON object with: ok (boolean success), receipt (short-lived signed receipt string), exp (Unix expiry timestamp), tier (integer, value 3), paid_via (payment method string, e.g. x402/USDC/Base), and optional ref (query hash if supplied). The receipt can be passed to /pay/verify for downstream authorization checks.","failureModes":["Payment not included or malformed x402 header — returns 402 Payment Required","Payment amount insufficient for tier 3 — payment rejected","Receipt already expired — must re-pay to get a fresh receipt","Invalid or missing ref hash format — may return error or null ref","Network or provider outage on Base — payment processing fails"],"whenToPreferThis":"Use this endpoint when you need tier 3 (highest) access level to the aeml-x402 service and want to pay via x402 USDC micropayment on Base. Prefer this over tier 1 or tier 2 endpoints when the downstream resource requires tier 3 authorization. It is the right choice for agents that need to programmatically acquire short-lived signed credentials tied to a crypto micropayment rather than API key-based auth.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:43:14.066Z","isFirstParty":false}