{"id":"7c8b1c54-1be8-4c77-9198-94a60ee5013c","shortId":"bEngev","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/35/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 charges up to 0.02 USDC per request (maxAmountRequired of 20,000 base units with USDC's 6 decimals). Payment is settled on-chain on Base using USDC (contract 0x8335…2913) to the payTo address 0x1A2B…85F3. The endpoint uses the \"exact\" payment scheme with a 300-second timeout. No API keys or rate limits are advertised; access is granted purely through the x402 payment header.\n\nDocumentation is extremely sparse. The landing page lists available API categories and a uniform $0.02/request price, but the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no detailed description of what the account statements endpoint returns or what parameters it accepts. The endpoint is confirmed live (returns a valid 402 challenge), but the lack of documentation makes it difficult to use without experimentation.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","account-statements","pay-per-request","no-api-key","json-response"],"categories":["finance","data"],"synonyms":["account statements API","financial statements endpoint","x402 API","USDC pay-per-call","Base network API","lowpaymentfee","micropayment API"],"warnings":["Documentation pages (docs, pricing, README, api) all render only 'Connect wallet' with no usable content","No OpenAPI or request/response schema available — input parameters and output format are unknown","The endpoint path contains a hardcoded account ID (/accounts/35/statements); unclear if other account IDs are supported or what this represents","The broader platform lists many API categories but this specific endpoint (account statements) is not listed on the landing page"],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/35/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/35/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 402 challenge, but documentation is essentially nonexistent — docs/pricing/README pages all show only 'Connect wallet'. There is no OpenAPI schema, no request/response examples, and no description of what the statements endpoint actually returns or accepts. The endpoint path includes a hardcoded account ID (35), raising questions about 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'/request':168 '0.02':90,167 '000':97 '0x1a2b':122 '0x8335':116 '20':96 '2913':117 '300':133 '402':221 '6':103 '85f3':123 'Base network API' 'USDC pay-per-call' 'accept':212 'access':34,144 'account':4,18,36,204 'account statements API' 'account-statements' 'address':121 'advertis':143 'ai/ml':65 'analyt':64 'api':61,137,162,173 'avail':161 'base':8,22,81,98,112 'base-network' 'behind':74 'broader':49 'call':60 'categori':163 'chain':110 'challeng':222 'charg':87 'confirm':216 'connect':182 'content':188 'contract':115 'data':63,68 'decim':104 'descript':200 'detail':199 'difficult':230 'doc':172 'document':153,227 'endpoint':6,20,30,85,125,206,214 'exact':128 'exampl':196 'experiment':234 'extrem':155 'finance/web3':67 'financial statements endpoint' 'gate':3,17,73 'grant':146 'header':152 'infer':66 'infrastructur':70 'json-response' 'key':138 'lack':225 'land':158 'limit':141 'list':160 'live':217 'lowpaymentfee' 'lowpaymentfee.com':32,51 'make':228 'maxamountrequir':94 'micropayment API' 'network':82 'no-api-key' 'offer':53 'on-chain':108 'openapi':192 'page':159,177 'paramet':210 'part':46 'pay':10,24,58 'pay-per-cal':57 'pay-per-request':9,23 'payment':77,105,129,151 'payto':120 'per':11,25,59,92 'platform':50 'post':40 'price':169,174 'probe':86 'prompt':184 'protocol':78 'provid':33 'pure':147 'rate':140 'readm':176 'render':179 'request':12,26,41,93 'request/response':195 'return':207,218 'schema':193 'scheme':130 'second':134 'settl':107 'span':62 'spars':156 'specif':84 'statement':5,19,37,205 'timeout':135 'uniform':166 'unit':99 'usdc':14,28,91,101,114 'usdc-settlement' 'use':113,126,232 'util':71 'valid':220 'varieti':55 'via':38 'wallet':183 'without':233 'x402':2,16,76,150 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"4fa4c9d6-3d61-40de-96a3-8ea21346a586","listingId":"7c8b1c54-1be8-4c77-9198-94a60ee5013c","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/35/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":"2026-04-18T18:39:34.793Z"}],"sources":[{"listingId":"7c8b1c54-1be8-4c77-9198-94a60ee5013c","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/35/statements","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:39:34.793Z","lastSeenAt":"2026-04-29T05:33:52.960Z"}],"details":{"listingId":"7c8b1c54-1be8-4c77-9198-94a60ee5013c","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/35/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 valid x402 challenge with maxAmountRequired of 20000 base units in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/accounts/35/statements"},{"claim":"The 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":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/accounts/35/statements"},{"claim":"Docs, pricing, API, and README pages render only 'Connect wallet' with no additional content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving account statement data on a pay-per-request basis","Programmatic access to financial account records without API key management","Agent-driven financial data retrieval settled via on-chain USDC payments"],"bestFor":["Developers or agents needing account statement data with zero signup friction","Use cases where per-call crypto micropayments are preferred over subscriptions","Automated workflows on Base that can natively settle USDC payments"],"notFor":["Users who need detailed API documentation or request/response schemas before integrating","High-volume consumers who would benefit from bulk pricing or subscription plans","Users without access to USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:38.576Z"},"updatedAt":"2026-04-29T05:33:52.960Z"}}