{"id":"5e53b398-1d09-4aeb-a9bf-f89a4de6725e","shortId":"CT69Gv","kind":"x402","title":"Transaction receipt endpoint on Base, paid per-call via x402 with USDC.","tagline":"Transaction receipt endpoint on Base, paid per-call via x402 with USDC.","description":"This endpoint at lowpaymentfee.com provides a transaction receipt for transaction ID 288 via the x402 payment protocol. It is part of a broader platform (lowpaymentfee.com) that offers a variety of pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and utility services — all settled on the Base network using USDC.\n\nThe specific endpoint `/api/v1/transactions/288/receipt` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per call (USDC uses 6 decimals). The platform's landing page confirms a flat $0.02/request pricing model across all endpoints, with no API keys, no rate limits, and no minimum commitments required.\n\nThe broader lowpaymentfee.com platform lists endpoints for metrics, reports, data export, insights, sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and generation — all at the same $0.02 price point. However, no OpenAPI schema, detailed documentation, or example request/response payloads were found during the crawl; the docs, API, pricing, and README pages all returned only a \"Connect wallet\" prompt with no substantive content.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","transaction-receipt","pay-per-request","no-api-key","json-response"],"categories":["finance","infrastructure"],"synonyms":["transaction receipt API","x402 API","USDC micropayment API","Base network API","pay-per-call API","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available for this endpoint","All documentation pages (docs, API, pricing, README) returned only a 'Connect wallet' prompt with no content","The endpoint is for a specific transaction ID (288); it is unclear whether this is a general-purpose receipt endpoint or a single fixed resource","No example request or response payloads are available to verify what the endpoint actually returns"],"endpointUrl":"https://lowpaymentfee.com/api/v1/transactions/288/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/288/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/request in USDC on Base). However, there is no OpenAPI schema, no example request/response, and no meaningful documentation — the docs/pricing/README pages are all empty beyond a wallet-connect prompt. The specific purpose of a 'transaction 288 receipt' is unclear without further 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'/request':126 '0.02':110,125,179 '000':99 '0x8335':104 '20':98 '288':38 '2913':105 '6':115 'Base network API' 'USDC micropayment API' 'accept':84 'across':129 'advertis':93 'ai/ml':65 'analysi':157 'analyt':64 'api':61,134,199 'base':5,18,76,100,107 'base-network' 'broader':49,145 'call':9,22,112 'challeng':92 'classif':160 'commit':142 'confirm':122 'connect':208 'content':214 'convers':172 'cost':96 'crawl':196 'data':63,68,153 'decim':116 'detail':186 'doc':198 'document':187 'embed':161 'endpoint':3,16,28,82,131,149 'equal':109 'estim':169 'exampl':189 'exchang':164 'export':154 'feed':163 'finance/web3':67 'flat':124 'found':193 'gas':168 'generat':174 'geocod':170 'howev':182 'id':37 'infer':66 'insight':155 'json':89 'json-response' 'key':135 'land':120 'limit':138 'list':148 'lowpaymentfee' 'lowpaymentfee.com':30,51,146 'maximum':95 'metric':151 'minimum':141 'model':128 'network':77 'no-api-key' 'offer':53 'openapi':184 'page':121,203 'paid':6,19 'part':46 'pay':58 'pay-per-call API' 'pay-per-request':57 'payload':191 'payment':42 'per':8,21,59,111 'per-cal':7,20 'platform':50,118,147 'point':181 'post':85 'price':127,162,180,200 'prompt':210 'protocol':43 'provid':31 'quot':167 'rate':137,165 'readm':202 'receipt':2,15,34 'report':152 'request':60,86 'request/response':190 'requir':143 'return':88,205 'schema':185 'sentiment':156 'servic':71 'settl':73 'span':62 'specif':81 'substant':213 'summar':159 'text':158 'token':166 'transact':1,14,33,36 'transaction receipt API' 'transaction-receipt' 'unit':101 'usdc':13,26,79,103,113 'usdc-settlement' 'use':78,114 'util':70 'valid':171 'varieti':55 'via':10,23,39 'wallet':209 'x402':11,24,41,91 'x402 API' 'x402-payment'","prices":[{"id":"cd01d0a1-b5ff-4aa9-9521-8589ff9fd862","listingId":"5e53b398-1d09-4aeb-a9bf-f89a4de6725e","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/288/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":"2026-04-18T18:59:55.909Z"}],"sources":[{"listingId":"5e53b398-1d09-4aeb-a9bf-f89a4de6725e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/transactions/288/receipt","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:59:55.909Z","lastSeenAt":"2026-04-24T11:32:47.568Z"}],"details":{"listingId":"5e53b398-1d09-4aeb-a9bf-f89a4de6725e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/transactions/288/receipt\n# Returns 402 with x402 challenge; attach X-PAYMENT header with valid USDC payment on Base to receive the receipt.","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The x402 challenge advertises maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/transactions/288/receipt"},{"claim":"The platform charges $0.02 per request with no API keys, no rate limits, and 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/288/receipt"}],"useCases":["Retrieving a transaction receipt for transaction 288 via programmatic pay-per-call access","Integrating x402-compatible agents that settle payments in USDC on Base","Accessing low-cost API services without managing API keys or subscriptions"],"bestFor":["Agents or bots that support x402 payment protocol on Base","Developers wanting zero-commitment, pay-per-use API access","Use cases requiring USDC-settled micropayments per request"],"notFor":["Users needing detailed API documentation or OpenAPI specs before integrating","Bulk or high-volume use cases where per-request pricing may add up","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:39.97Z"},"updatedAt":"2026-04-24T11:32:47.568Z"}}