{"id":"7c84388b-fb06-4a55-9867-f4bd9b31cf6d","shortId":"kwEKWb","kind":"x402","title":"x402-gated account statements endpoint on Base, paid per-request in USDC.","tagline":"x402-gated account statements endpoint on Base, paid per-request in USDC.","description":"This endpoint at lowpaymentfee.com provides access to account statements via a POST request to `/api/v1/accounts/16/statements`. It is part of a broader platform (lowpaymentfee.com) that offers dozens of x402-payable API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all settled on the Base network using USDC.\n\nThe specific endpoint probed here returns an x402 challenge requesting up to 20,000 base units of USDC (0x8335…2913 on Base). Since USDC uses 6 decimals, this translates to $0.02 per request, consistent with the site's advertised flat pricing of $0.02/request across all endpoints. Payment is made via the x402 exact scheme with no API keys, no rate limits, and no subscription required — callers simply attach an X-PAYMENT header with a valid payment proof.\n\nDocumentation on the site is extremely thin: the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The endpoint's purpose (\"account statements\") and expected input/output format are not documented beyond the title \"Premium API Access\" and the MIME type `application/json`. The platform appears to be a demonstration or early-stage x402 marketplace rather than a mature production API.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","account-statements","per-request-pricing","no-api-key","json-response"],"categories":["finance","data"],"synonyms":["account statements API","x402 paid API","USDC micropayment API","Base network API","pay-per-call API","lowpaymentfee","financial statements endpoint"],"warnings":["No API documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'","No OpenAPI or JSON schema for request or response bodies","The endpoint path includes a hardcoded account ID (16); unclear if other account IDs are supported or what input is expected","Platform appears to be early-stage or a demo; production reliability is unknown"],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/16/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/16/statements","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no documentation, no OpenAPI spec, no request/response examples, and the docs pages are empty stubs. The purpose of 'account statements' for 'account 16' is unexplained, making this effectively a stub 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'/request':122 '0.02':109,121 '000':92 '0x8335':97 '20':91 '2913':98 '6':104 'Base network API' 'USDC micropayment API' 'access':34,215 'account':4,18,36,201 'account statements API' 'account-statements' 'across':123 'advertis':117 'ai/ml':64 'analyt':63 'api':59,136,168,214,239 'appear':223 'application/json':220 'attach':147 'avail':196 'base':8,22,75,93,100 'base-network' 'beyond':210 'broader':49 'caller':145 'challeng':87 'connect':176 'consist':112 'content':182 'data':62,67 'decim':105 'demonstr':227 'doc':166 'document':158,191,209 'dozen':54 'earli':230 'early-stag':229 'endpoint':6,20,30,60,81,125,198 'exact':132 'exampl':194 'expect':204 'extrem':163 'finance/web3':66 'financial statements endpoint' 'flat':118 'format':206 'gate':3,17 'header':152 'infer':65 'infrastructur':69 'input/output':205 'json-response' 'key':137 'limit':140 'lowpaymentfee' 'lowpaymentfee.com':32,51 'made':128 'marketplac':233 'matur':237 'mime':218 'network':76 'no-api-key' 'offer':53 'openapi':186 'page':171 'paid':9,23 'part':46 'pay-per-call API' 'payabl':58 'payload':195 'payment':126,151,156 'per':11,25,110 'per-request':10,24 'per-request-pricing' 'platform':50,222 'post':40 'premium':213 'price':119,167 'probe':82 'product':238 'prompt':178 'proof':157 'provid':33 'purpos':200 'rate':139 'rather':234 'readm':170 'render':173 'request':12,26,41,88,111 'request/response':189 'requir':144 'return':84 'schema':190 'scheme':133 'settl':72 'simpli':146 'sinc':101 'site':115,161 'span':61 'spec':187 'specif':80 'stage':231 'statement':5,19,37,202 'subscript':143 'thin':164 'titl':212 'translat':107 'type':219 'unit':94 'usdc':14,28,78,96,102 'usdc-settlement' 'use':77,103 'util':70 'valid':155 'via':38,129 'wallet':177 'x':150 'x-payment':149 'x402':2,16,57,86,131,232 'x402 paid API' 'x402-gated':1,15 'x402-payable':56 'x402-payment'","prices":[{"id":"812b2135-55ed-4ea6-9883-0420b3f73be0","listingId":"7c84388b-fb06-4a55-9867-f4bd9b31cf6d","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/16/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":"2026-04-18T18:39:18.509Z"}],"sources":[{"listingId":"7c84388b-fb06-4a55-9867-f4bd9b31cf6d","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/16/statements","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:39:18.509Z","lastSeenAt":"2026-04-29T06:33:41.921Z"}],"details":{"listingId":"7c84388b-fb06-4a55-9867-f4bd9b31cf6d","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/16/statements \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns an x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/accounts/16/statements"},{"claim":"The platform advertises $0.02/request flat pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/accounts/16/statements"}],"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 flows on Base","AI agents that need to fetch account statements without API key provisioning","Prototyping pay-per-call microservice architectures"],"notFor":["Production workloads requiring documented request/response schemas","High-volume bulk data export where per-request fees add up","Users who need detailed API documentation or SDKs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:39.293Z"},"updatedAt":"2026-04-29T06:33:41.921Z"}}