{"id":"9e7f6350-f6a8-4eeb-862f-cdb36f604f53","shortId":"jTpxp6","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/135/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 returns a 402 challenge requesting payment of up to 20,000 base units of USDC (contract `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 settled on-chain to address `0x1A2B…85F3` using the x402 \"exact\" scheme with a 300-second timeout.\n\nThe platform advertises no API keys, no rate limits, and instant access. However, documentation is extremely thin — the /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The endpoint's actual functionality (what data account statements contain, what POST body is expected) is entirely undocumented in the crawled material. The listing title \"Premium API Access\" is generic and does not clarify the endpoint's purpose.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","account-statements","pay-per-request","no-api-key"],"categories":["finance","data"],"synonyms":["account statements API","x402 paid API","USDC micropayment API","Base network API","lowpaymentfee","pay-per-call API","financial statements endpoint"],"warnings":["No OpenAPI spec or request/response schema available","All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no content","The endpoint path references a hardcoded account ID (135); unclear if this is parameterizable","Actual data returned by the endpoint is completely undocumented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/135/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/135/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. However, there is zero documentation on request/response schemas, no OpenAPI spec, and the crawled docs pages are empty stubs. The endpoint's actual purpose ('account statements') is unexplained, making integration impractical without trial and 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'/api/v1/accounts/135/statements':43 '/docs':170 '/pricing':171 '/readme':174 '/request':128 '0.02':115,127 '000':97 '0x1a2b':140 '0x8335':103 '20':96 '2913':104 '300':149 '402':89 '6':110 '85f3':141 'Base network API' 'USDC micropayment API' 'access':34,163,229 'account':4,18,36,209 'account statements API' 'account-statements' 'across':129 'actual':205 'address':139 'advertis':123,154 'ai/ml':65 'analyt':64 'api':61,156,228 'avail':201 'base':8,22,81,98,106 'base-network' 'behind':74 'bodi':214 'broader':49 'call':60 'chain':137 'challeng':90 'clarifi':235 'connect':180 'consist':118 'contain':211 'contract':102 'crawl':222 'data':63,68,208 'decim':111 'detail':187 'document':165,196 'endpoint':6,20,30,85,131,203,237 'entir':218 'exact':145 'exampl':199 'expect':216 'extrem':167 'finance/web3':67 'financial statements endpoint' 'flat':124 'function':206 'gate':3,17,73 'generic':231 'howev':164 'infer':66 'infrastructur':70 'instant':162 'key':157 'limit':160 'list':225 'lowpaymentfee' 'lowpaymentfee.com':32,51 'materi':223 'network':82 'no-api-key' 'offer':53 'on-chain':135 'openapi':191 'page':175 'part':46 'pay':10,24,58 'pay-per-cal':57 'pay-per-call API' 'pay-per-request':9,23 'payload':200 'payment':77,92,132 'per':11,25,59,116 'platform':50,153 'post':40,213 'premium':227 'price':125 'probe':86 'prompt':182 'protocol':78 'provid':33 'purpos':239 'rate':159 'render':177 'request':12,26,41,91,117 'request/response':194 'return':87 'schema':195 'scheme':146 'second':150 'settl':134 'sinc':107 'site':121 'span':62 'spec':192 'specif':84 'statement':5,19,37,210 'technic':186 'thin':168 'timeout':151 'titl':226 'translat':113 'undocu':219 'unit':99 'usdc':14,28,101,108 'usdc-settlement' 'use':109,142 'util':71 'varieti':55 'via':38 'wallet':181 'x402':2,16,76,144 'x402 paid API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"b013fe8b-18b6-4550-88b9-88fe2d03a9c3","listingId":"9e7f6350-f6a8-4eeb-862f-cdb36f604f53","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/135/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":"2026-04-18T18:41:02.347Z"}],"sources":[{"listingId":"9e7f6350-f6a8-4eeb-862f-cdb36f604f53","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/135/statements","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:41:02.347Z","lastSeenAt":"2026-04-29T03:33:52.823Z"}],"details":{"listingId":"9e7f6350-f6a8-4eeb-862f-cdb36f604f53","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/135/statements \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge requesting up to 20,000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/accounts/135/statements"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/accounts/135/statements"},{"claim":"Platform advertises $0.02/request flat pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages render only a 'Connect wallet' prompt with no technical 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 needing detailed API documentation or OpenAPI specs before integrating","High-volume consumers who would benefit from bulk/subscription pricing","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:34.357Z"},"updatedAt":"2026-04-29T03:33:52.823Z"}}