{"id":"fa672e57-7ecc-4b76-aab6-3500eef78df3","shortId":"K8P9hr","kind":"x402","title":"x402-gated account statements endpoint on Base, pay-per-request with USDC.","tagline":"x402-gated account statements endpoint on Base, pay-per-request with USDC.","description":"This endpoint at lowpaymentfee.com provides access to account statements via a POST request to `/api/v1/accounts/54/statements`. It is part of a broader platform (lowpaymentfee.com) that offers a variety of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all gated behind the x402 payment protocol on the Base network.\n\nThe specific endpoint probed charges up to $0.02 per request (20,000 base units of USDC with 6 decimals = $0.02), settled in USDC on Base to address `0x1A2B...85F3`. The x402 challenge was confirmed live, returning a proper 402 with version 1 challenge headers. The payment scheme is \"exact\", meaning the caller pays a fixed amount per call with no subscription or session model. The response MIME type is `application/json`.\n\nDocumentation is extremely sparse. The landing page lists many API categories (analytics, AI, finance, infrastructure) all at $0.02/request, but the crawled docs, API, pricing, and README pages all returned only a \"Connect wallet\" stub with no further content. There is no OpenAPI spec, no request/response schema documentation, and no examples available. The specific semantics of \"account statements\" for account ID 54 are unclear — it may be a demo or placeholder endpoint. Without documentation on request body format or response structure, callers will need to experiment or contact the provider.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","account-statements","json-api"],"categories":["finance","data"],"synonyms":["account statements API","x402 paid API","USDC micropayment API","lowpaymentfee","Base network API","pay-per-call endpoint","crypto-gated API"],"warnings":["No OpenAPI or schema documentation available — request body format and response structure are unknown","All documentation pages (docs, API, pricing, README) return only a 'Connect wallet' stub with no content","The endpoint path references a specific account ID (54), which may be a demo/placeholder rather than a general-purpose API","The broader platform lists many endpoints but none appear documented beyond their names"],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/54/statements","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/accounts/54/statements","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is confirmed live via a valid x402 402 challenge, and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page listing, and the specific purpose of 'accounts/54/statements' is unexplained. Docs pages are all 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'/request':171 '0.02':90,102,170 '000':94 '0x1a2b':110 '1':124 '20':93 '402':121 '54':214 '6':100 '85f3':111 'Base network API' 'USDC micropayment API' 'access':34 'account':4,18,36,209,212 'account statements API' 'account-statements' 'address':109 'ai':165 'ai/ml':65 'amount':138 'analyt':64,164 'api':61,162,176 'application/json':152 'avail':204 'base':8,22,81,95,107 'base-network' 'behind':74 'bodi':229 'broader':49 'call':60,140 'caller':134,234 'categori':163 'challeng':114,125 'charg':87 'confirm':116 'connect':185 'contact':240 'content':191 'crawl':174 'crypto':68 'crypto-gated API' 'data':63 'decim':101 'demo':221 'doc':175 'document':153,200,226 'endpoint':6,20,30,85,224 'exact':131 'exampl':203 'experi':238 'extrem':155 'financ':67,166 'fix':137 'format':230 'gate':3,17,73 'header':126 'id':213 'infer':66 'infrastructur':167 'json-api' 'land':158 'list':160 'live':117 'lowpaymentfee' 'lowpaymentfee.com':32,51 'mani':161 'may':218 'mean':132 'mime':149 'model':146 'need':236 'network':82 'offer':53 'openapi':195 'page':159,180 'part':46 'pay':10,24,58,135 'pay-per-cal':57 'pay-per-call endpoint' 'pay-per-request':9,23 'payment':77,128 'per':11,25,59,91,139 'placehold':223 'platform':50 'post':40 'price':177 'probe':86 'proper':120 'protocol':78 'provid':33,242 'readm':179 'request':12,26,41,92,228 'request/response':198 'respons':148,232 'return':118,182 'schema':199 'scheme':129 'semant':207 'servic':71 'session':145 'settl':103 'span':62 'spars':156 'spec':196 'specif':84,206 'statement':5,19,37,210 'structur':233 'stub':187 'subscript':143 'type':150 'unclear':216 'unit':96 'usdc':14,28,98,105 'usdc-settlement' 'util':70 'varieti':55 'version':123 'via':38 'wallet':186 'without':225 'x402':2,16,76,113 'x402 paid API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"5ab3bd21-4065-4831-a8d7-aa94e2ebeda6","listingId":"fa672e57-7ecc-4b76-aab6-3500eef78df3","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/accounts/54/statements","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:39:49.859Z"}],"sources":[{"listingId":"fa672e57-7ecc-4b76-aab6-3500eef78df3","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/54/statements","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:39:49.859Z","lastSeenAt":"2026-04-29T05:33:53.515Z"}],"details":{"listingId":"fa672e57-7ecc-4b76-aab6-3500eef78df3","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/54/statements \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a valid x402 version 1 challenge with scheme 'exact' on Base network","source_url":"https://lowpaymentfee.com/api/v1/accounts/54/statements"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base, maxAmountRequired 20000 base units ($0.02)","source_url":"https://lowpaymentfee.com/api/v1/accounts/54/statements"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation, API, pricing, and README pages all show only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving account statement data via a single paid API call","Demonstrating x402 payment protocol integration on Base","Agent-driven financial data retrieval with per-request USDC settlement"],"bestFor":["Developers experimenting with x402 payment protocol","Agents that can settle USDC on Base for per-call API access","Low-cost pay-as-you-go API consumption without API keys"],"notFor":["Users needing detailed API documentation or guaranteed SLAs","High-volume batch processing where per-request fees add up","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:37.86Z"},"updatedAt":"2026-04-29T05:33:53.515Z"}}