{"id":"a311d368-f2b8-4ea3-9538-a1b2f374d40a","shortId":"Y3SEU5","kind":"x402","title":"Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.","tagline":"Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol. The specific resource at `/api/v1/accounts/80` is one of many endpoints offered by the platform, which spans categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints are priced at $0.02 per request, payable in USDC on the Base network with no API keys, no rate limits, and no minimum commitments.\n\nThe x402 challenge confirms the endpoint is live and accepts POST requests. Payment is settled on-chain to a specified address using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base). The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02. The endpoint returns `application/json` responses.\n\nThe specific functionality of the `/api/v1/accounts/80` path is unclear — it does not map to any of the documented API categories on the landing page (analytics, AI, finance, infrastructure). It may be an account-specific data retrieval endpoint or a generic premium resource. Documentation beyond the landing page is effectively empty (all subpages just show \"Connect wallet\"), so the exact request/response schema is unknown.","tags":[],"capabilities":["x402-payment","usdc-base-network","pay-per-request","json-api","no-api-key","no-rate-limits"],"categories":["api-gateway","data"],"synonyms":["x402 API","pay-per-call API","USDC micropayment API","lowpaymentfee","Base network API","crypto-paid API","accounts endpoint"],"warnings":["The specific purpose of /api/v1/accounts/80 is not documented anywhere on the site — it does not appear in the listed API catalog.","All documentation pages (/docs, /api, /pricing, /README) render only 'Connect wallet' with no actual content.","No request or response schema is available; integration requires trial-and-error or wallet-gated docs."],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/80","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/80","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but the specific functionality of /api/v1/accounts/80 is undocumented. No OpenAPI schema, no request/response examples, and all documentation pages are empty beyond the landing page. The endpoint's purpose must be 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'/request':13,28 '0.02':12,27,77,141 '000':132 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':123 '20':131 '6':137 'Base network API' 'USDC micropayment API' 'accept':107 'access':7,22,38 'account':180 'account-specif':179 'accounts endpoint' 'address':119 'ai':64,172 'amount':128 'analyt':63,171 'api':6,21,37,89,165 'application/json':145 'base':9,24,85,125,133 'beyond':191 'call':4,19 'categori':60,166 'chain':115 'challeng':100 'commit':97 'confirm':101 'connect':202 'contract':122 'crypto-paid API' 'data':62,182 'decim':138 'document':164,190 'effect':196 'empti':197 'endpoint':32,53,73,103,143,184 'equal':140 'exact':206 'financ':67,173 'function':149 'generic':187 'includ':61 'infrastructur':70,174 'json-api' 'key':90 'land':169,193 'learn':66 'limit':93 'live':105 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':65 'mani':52 'map':159 'max':127 'may':176 'minimum':96 'network':86 'no-api-key' 'no-rate-limits' 'offer':54 'on-chain':113 'one':50 'page':170,194 'path':153 'pay':2,17 'pay-per-cal':1,16 'pay-per-call API' 'pay-per-request' 'payabl':80 'payment':42,110 'per':3,18,78 'platform':57 'post':108 'premium':5,20,36,188 'price':75 'protocol':43 'provid':35 'rate':92 'request':79,109 'request/response':207 'requir':129 'resourc':46,189 'respons':146 'retriev':183 'return':144 'schema':208 'settl':112 'show':201 'span':59 'specif':45,148,181 'specifi':118 'subpag':199 'unclear':155 'unit':134 'unknown':210 'usdc':15,30,82,121,136 'usdc-base-network' 'use':120 'util':71 'via':10,25,39 'wallet':203 'web3':68 'x402':11,26,41,99 'x402 API' 'x402-payment'","prices":[{"id":"72181a4d-6f69-4980-8d35-ef459d2b43c8","listingId":"a311d368-f2b8-4ea3-9538-a1b2f374d40a","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/80","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:40:09.743Z"}],"sources":[{"listingId":"a311d368-f2b8-4ea3-9538-a1b2f374d40a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/80","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:40:09.743Z","lastSeenAt":"2026-04-24T09:03:17.799Z"}],"details":{"listingId":"a311d368-f2b8-4ea3-9538-a1b2f374d40a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/80 \\\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":"All endpoints priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"x402 challenge returns maxAmountRequired of 20000 base units USDC (= $0.02) on Base network","source_url":"https://lowpaymentfee.com/api/v1/accounts/80"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/accounts/80"},{"claim":"Platform offers APIs across data & analytics, AI & ML, finance & Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Accessing premium data or account information without traditional API key registration","Agent-driven workflows that need on-demand paid API calls settled in USDC on Base","Programmatic access to paid resources with no subscription or rate-limit overhead"],"bestFor":["Developers or agents who want keyless, pay-as-you-go API access","x402-compatible clients on the Base network","Low-cost per-request data retrieval without upfront commitments"],"notFor":["Users who need detailed API documentation or well-defined schemas before integrating","High-volume use cases where per-request pricing may add up compared to subscription models","Users without USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:36.873Z"},"updatedAt":"2026-04-24T09:03:17.799Z"}}