{"id":"ee2376b5-6359-4cc1-8f4d-a386d006a62b","shortId":"Me8jBu","kind":"x402","title":"Pay-per-call transaction receipt endpoint on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call transaction receipt endpoint on Base via x402, settled in USDC at $0.02/request.","description":"This x402-enabled endpoint at lowpaymentfee.com provides a transaction receipt for transaction ID 227 via a POST request. It is part of a broader platform offering multiple API categories — data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request with no API keys, no rate limits, and no commitments required. Payment is settled on the Base network using USDC (USD Coin).\n\nThe specific endpoint `/api/v1/transactions/227/receipt` returns a JSON response (MIME type `application/json`) upon successful payment. The x402 challenge confirms the endpoint is live, accepting an exact payment scheme with a max amount of 20,000 base units of USDC (6 decimals), which equals $0.02. The payment timeout is 300 seconds. No OpenAPI schema, detailed documentation, or example responses were found in the crawl — the docs, pricing, API, and README pages all rendered only a \"Connect wallet\" prompt with no substantive content.\n\nBecause this endpoint is scoped to a single transaction ID (227), its general utility is unclear. It may be a demonstration or template endpoint rather than a broadly useful API. The platform lists many other endpoints across various domains, but this specific listing covers only the receipt retrieval for transaction 227.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","transaction-receipt","pay-per-call","no-api-key","json-response"],"categories":["finance","infrastructure"],"synonyms":["transaction receipt API","x402 payment endpoint","USDC micropayment API","Base network API","pay-per-request API","lowpaymentfee","receipt endpoint"],"warnings":["No OpenAPI or schema documentation available; all doc pages render only 'Connect wallet'","Endpoint is scoped to a single transaction ID (227) — unclear if this is a template or a fixed resource","No example responses available; response format is unknown beyond MIME type application/json","Platform appears to be a demonstration or early-stage project with many listed endpoints but no substantive docs"],"endpointUrl":"https://lowpaymentfee.com/api/v1/transactions/227/receipt","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/transactions/227/receipt","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no example request/response, and no meaningful documentation — all doc pages returned only 'Connect wallet'. The endpoint is also scoped to a single transaction ID, limiting general 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'/request':17,34 '0.02':16,33,78,145 '000':136 '20':135 '227':49,193,233 '300':150 '6':141 'Base network API' 'USDC micropayment API' 'accept':125 'across':219 'ai':67 'amount':133 'analyt':66 'api':63,83,168,212 'application/json':113 'base':9,26,97,137 'base-network' 'broad':210 'broader':59 'call':4,21 'categori':64 'challeng':119 'coin':102 'commit':90 'confirm':120 'connect':176 'content':182 'cover':226 'crawl':164 'data':65 'decim':142 'demonstr':203 'detail':155 'doc':166 'document':156 'domain':221 'enabl':38 'endpoint':7,24,39,105,122,185,206,218 'equal':144 'exact':127 'exampl':158 'financ':70 'found':161 'general':195 'id':48,192 'infrastructur':73 'json':109 'json-response' 'key':84 'learn':69 'limit':87 'list':215,225 'live':124 'lowpaymentfee' 'lowpaymentfee.com':41 'machin':68 'mani':216 'max':132 'may':200 'mime':111 'multipl':62 'network':98 'no-api-key' 'offer':61 'openapi':153 'page':171 'part':56 'pay':2,19 'pay-per-cal':1,18 'pay-per-call' 'pay-per-request API' 'payment':92,116,128,147 'per':3,20,79 'platform':60,214 'post':52 'price':76,167 'prompt':178 'provid':42 'rate':86 'rather':207 'readm':170 'receipt':6,23,45,229 'receipt endpoint' 'render':173 'request':53,80 'requir':91 'respons':110,159 'retriev':230 'return':107 'schema':154 'scheme':129 'scope':187 'second':151 'settl':12,29,94 'singl':190 'specif':104,224 'substant':181 'success':115 'templat':205 'timeout':148 'transact':5,22,44,47,191,232 'transaction receipt API' 'transaction-receipt' 'type':112 'unclear':198 'unit':138 'upon':114 'usd':101 'usdc':14,31,100,140 'usdc-settlement' 'use':99,211 'util':74,196 'various':220 'via':10,27,50 'wallet':177 'web3':71 'x402':11,28,37,118 'x402 payment endpoint' 'x402-enabled':36 'x402-payment'","prices":[{"id":"5bb6d983-8493-43ab-bf5a-cf0fc7880bc4","listingId":"ee2376b5-6359-4cc1-8f4d-a386d006a62b","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/transactions/227/receipt","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:59:13.243Z"}],"sources":[{"listingId":"ee2376b5-6359-4cc1-8f4d-a386d006a62b","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/transactions/227/receipt","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:59:13.243Z","lastSeenAt":"2026-04-24T18:33:04.780Z"}],"details":{"listingId":"ee2376b5-6359-4cc1-8f4d-a386d006a62b","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/transactions/227/receipt \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge with x402Version 1, accepting USDC on Base network with maxAmountRequired of 20000 base units ($0.02)","source_url":"https://lowpaymentfee.com/api/v1/transactions/227/receipt"},{"claim":"Platform lists APIs across data & analytics, AI & ML, finance & Web3, and infrastructure categories, all at $0.02/request","source_url":"https://lowpaymentfee.com"},{"claim":"Pricing is $0.02/request with no API keys, no rate limits, instant access, on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/transactions/227/receipt"}],"useCases":["Retrieving a receipt for a specific transaction via programmatic pay-per-call access","Demonstrating x402 payment protocol integration on the Base network","Agent-driven workflows that need to fetch transaction documentation without API key provisioning"],"bestFor":["Developers experimenting with x402 payment protocol","Agents needing keyless, pay-per-call access to transaction receipts","Projects already operating on the Base L2 network with USDC"],"notFor":["Bulk retrieval of many different transaction receipts (endpoint is scoped to transaction 227)","Users who need detailed API documentation or OpenAPI specs before integrating","Applications requiring non-USDC or non-Base-network payment rails"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:41.817Z"},"updatedAt":"2026-04-24T18:33:04.780Z"}}