{"id":"d54c73d8-9bcc-45dc-9152-b364f74c0d3d","shortId":"t2Fa3t","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/159/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/Web3 data, and infrastructure utilities — all gated behind the x402 payment protocol on the Base network.\n\nThe specific endpoint probed here charges up to 0.02 USDC per request (maxAmountRequired of 20,000 base units with USDC's 6 decimals). Payment is settled on-chain via the x402 \"exact\" scheme to a designated wallet address. The platform advertises no API keys, no rate limits, and instant access — callers simply attach an X-PAYMENT header with a valid x402 payment proof.\n\nDocumentation is extremely sparse. The crawled /docs, /api, /pricing, and /README pages all returned only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The endpoint is confirmed live (returns HTTP 402 with a well-formed x402 challenge), but what data the \"account statements\" endpoint actually returns, what POST body it expects, and what account ID 159 refers to are all unknown from the available material.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","account-statements","pay-per-request","no-api-key"],"categories":["finance","data"],"synonyms":["account statements API","x402 API","pay-per-call API","USDC micropayment API","lowpaymentfee","Base network API","crypto-paid API"],"warnings":["No documentation available — /docs, /api, /pricing, and /README pages all render only a 'Connect wallet' prompt with no content.","No OpenAPI or schema definition found for request or response payloads.","The endpoint path includes a hardcoded account ID (159); it is unclear whether this is a demo, a specific user's data, or a parameterized route.","Purpose and data returned by 'account statements' endpoint is entirely undocumented."],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/159/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/159/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 with a valid x402 challenge, but there is no documentation, no OpenAPI spec, no request/response examples, and no explanation of what data is actually returned. The account ID '159' is hardcoded in the URL with no context. This is effectively a stub 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'/api/v1/accounts/159/statements':43 '/docs':154 '/pricing':156 '/readme':158 '0.02':91 '000':98 '159':218 '20':97 '402':192 '6':104 'Base network API' 'USDC micropayment API' 'access':34,133 'account':4,18,36,204,216 'account statements API' 'account-statements' 'actual':207 'address':121 'advertis':124 'ai/ml':65 'analyt':64 'api':61,126 'attach':136 'avail':184,226 'base':8,22,81,99 'base-network' 'behind':74 'bodi':211 'broader':49 'call':60 'caller':134 'chain':111 'challeng':199 'charg':88 'confirm':188 'connect':164 'content':170 'crawl':153 'crypto-paid API' 'data':63,68,202 'decim':105 'design':119 'document':148,179 'endpoint':6,20,30,85,186,206 'exact':115 'exampl':182 'expect':213 'extrem':150 'finance/web3':67 'form':197 'gate':3,17,73 'header':141 'http':191 'id':217 'infer':66 'infrastructur':70 'instant':132 'key':127 'limit':130 'live':189 'lowpaymentfee' 'lowpaymentfee.com':32,51 'materi':227 'maxamountrequir':95 'network':82 'no-api-key' 'offer':53 'on-chain':109 'openapi':174 'page':159 'part':46 'pay':10,24,58 'pay-per-cal':57 'pay-per-call API' 'pay-per-request':9,23 'payload':183 'payment':77,106,140,146 'per':11,25,59,93 'platform':50,123 'post':40,210 'probe':86 'prompt':166 'proof':147 'protocol':78 'provid':33 'rate':129 'refer':219 'request':12,26,41,94 'request/response':177 'return':161,190,208 'schema':178 'scheme':116 'settl':108 'simpli':135 'span':62 'spars':151 'spec':175 'specif':84 'statement':5,19,37,205 'substant':169 'unit':100 'unknown':223 'usdc':14,28,92,102 'usdc-settlement' 'util':71 'valid':144 'varieti':55 'via':38,112 'wallet':120,165 'well':196 'well-form':195 'x':139 'x-payment':138 'x402':2,16,76,114,145,198 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"522acac9-4758-41af-b1f5-ba6b2445de68","listingId":"d54c73d8-9bcc-45dc-9152-b364f74c0d3d","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/159/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":"2026-04-18T18:41:18.707Z"}],"sources":[{"listingId":"d54c73d8-9bcc-45dc-9152-b364f74c0d3d","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/159/statements","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:41:18.707Z","lastSeenAt":"2026-04-29T02:33:51.003Z"}],"details":{"listingId":"d54c73d8-9bcc-45dc-9152-b364f74c0d3d","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/159/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 a 402 challenge with maxAmountRequired of 20000 base units in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/accounts/159/statements"},{"claim":"The platform advertises $0.02 per request, no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/accounts/159/statements"},{"claim":"Docs, API, pricing, and README pages show only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving account statement data via a single paid API call","Programmatic access to financial account records without API key registration","Agent-driven data retrieval with on-chain USDC micropayments"],"bestFor":["Developers wanting keyless, pay-per-use API access on Base","AI agents that can settle x402 payments autonomously","Users who prefer on-chain micropayments over subscription billing"],"notFor":["Users who need detailed API documentation or OpenAPI specs before integrating","High-volume consumers who want bulk pricing or subscription plans","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:33.622Z"},"updatedAt":"2026-04-29T02:33:51.003Z"}}