{"id":"ca11c301-4a0b-4141-a1dc-fab65040bddc","shortId":"RUp5s5","kind":"x402","title":"x402-gated account statements endpoint on Base, pay $0.02 per request in USDC.","tagline":"x402-gated account statements endpoint on Base, pay $0.02 per request in USDC.","description":"This endpoint at lowpaymentfee.com provides access to account statements via a POST request to `/api/v1/accounts/178/statements`. It is part of a broader platform offering dozens of x402-protocol pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all priced at $0.02 per request settled in USDC on the Base network.\n\nThe specific endpoint probed (`/accounts/178/statements`) returns a live 402 challenge with `maxAmountRequired` of 20,000 base units of USDC (0x8335…on Base, 6 decimals → $0.02). Payment is made via the x402 exact scheme: callers attach an `X-PAYMENT` header containing a signed payment payload, and the server fulfills the request upon verification. No API keys, rate limits, or upfront commitments are required.\n\nDocumentation on the site is extremely thin — the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI spec, no request/response schema, and no usage examples. The purpose and shape of the \"account statements\" data returned by this particular endpoint is unclear from available material. The platform appears to be a demonstration or early-stage deployment of x402-based micropayment APIs.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","account-statements","post-endpoint","no-api-key","micropayment"],"categories":["finance","data"],"synonyms":["account statements API","x402 micropayment API","USDC pay-per-call","Base network API","lowpaymentfee","402 payment required API","crypto-paid API"],"warnings":["No OpenAPI spec or request/response schema available","Documentation pages (docs, pricing, API, README) all render only 'Connect wallet' with no content","The specific data returned by /accounts/178/statements is undocumented — unclear what 'account 178' refers to","Platform appears to be early-stage or a demo; reliability and longevity are unknown"],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/178/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/178/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 (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI spec, no request/response schema, and no examples. The purpose of the 'account statements' data is unexplained. Effectively a stub 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'/api/v1/accounts/178/statements':43 '0.02':10,24,75,109 '000':99 '0x8335':104 '20':98 '402':93 '402 payment required API' '6':107 'Base network API' 'USDC pay-per-call' 'access':34 'account':4,18,36,191 'account statements API' 'account-statements' 'ai/ml':65 'analyt':64 'api':61,139,158,221 'appear':206 'attach':119 'avail':202 'base':8,22,83,100,106,219 'broader':49 'call':60 'caller':118 'challeng':94 'commit':145 'connect':166 'contain':125 'content':172 'crypto-paid API' 'data':63,68,193 'decim':108 'demonstr':210 'deploy':215 'doc':156 'document':148 'dozen':52 'earli':213 'early-stag':212 'endpoint':6,20,30,87,198 'exact':116 'exampl':184 'extrem':153 'finance/web3':67 'fulfil':133 'gate':3,17 'header':124 'infer':66 'infrastructur':70 'key':140 'limit':142 'live':92 'lowpaymentfee' 'lowpaymentfee.com':32 'made':112 'materi':203 'maxamountrequir':96 'micropay':220 'micropayment' 'network':84 'no-api-key' 'offer':51 'openapi':176 'page':161 'part':46 'particular':197 'pay':9,23,58 'pay-per-cal':57 'pay-per-request' 'payload':129 'payment':110,123,128 'per':11,25,59,76 'platform':50,205 'post':40 'post-endpoint' 'price':73,157 'probe':88 'prompt':168 'protocol':56 'provid':33 'purpos':186 'rate':141 'readm':160 'render':163 'request':12,26,41,77,135 'request/response':179 'requir':147 'return':90,194 'schema':180 'scheme':117 'server':132 'settl':78 'shape':188 'sign':127 'site':151 'span':62 'spec':177 'specif':86 'stage':214 'statement':5,19,37,192 'substant':171 'thin':154 'unclear':200 'unit':101 'upfront':144 'upon':136 'usag':183 'usdc':14,28,80,103 'usdc-base' 'util':71 'verif':137 'via':38,113 'wallet':167 'x':122 'x-payment':121 'x402':2,16,55,115,218 'x402 micropayment API' 'x402-based':217 'x402-gated':1,15 'x402-payment' 'x402-protocol':54","prices":[{"id":"b4ea1dc9-bd10-4fb0-9e4d-d6a23650242b","listingId":"ca11c301-4a0b-4141-a1dc-fab65040bddc","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/178/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":"2026-04-18T18:41:27.100Z"}],"sources":[{"listingId":"ca11c301-4a0b-4141-a1dc-fab65040bddc","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/178/statements","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:41:27.100Z","lastSeenAt":"2026-04-29T02:33:51.347Z"}],"details":{"listingId":"ca11c301-4a0b-4141-a1dc-fab65040bddc","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/178/statements \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <signed-x402-payment-payload>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns a live 402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/accounts/178/statements"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/accounts/178/statements"},{"claim":"Platform advertises $0.02 per request, no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, pricing, API, and README pages render only 'Connect wallet'","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving account statement data via a single paid API call","Demonstrating x402 protocol payment flows for agent-to-service transactions","Integrating pay-per-use financial data endpoints without API key management"],"bestFor":["Developers experimenting with x402 payment protocol","Agents that can sign USDC payments on Base for per-call access","Use cases needing keyless, commitment-free API access"],"notFor":["Production workloads requiring documented request/response schemas","Users who need traditional API-key or OAuth authentication","High-volume consumers who need bulk pricing or rate guarantees"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:33.148Z"},"updatedAt":"2026-04-29T02:33:51.347Z"}}