{"id":"11fbb531-624e-48c8-9901-0d9ca438a0ae","shortId":"TttLBH","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 `/api/v1/accounts/26` 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, paid in USDC on the Base network with no API keys, rate limits, or commitments required.\n\nThe x402 challenge confirms the endpoint is live, accepting POST requests and settling payments in USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base). The max amount required is 20,000 base units, which at 6 decimals for USDC equals $0.02 per call. The payment scheme is \"exact\" with a timeout of 300 seconds.\n\nHowever, the specific functionality of `/api/v1/accounts/26` is unclear. It is not listed among the documented API categories on the landing page (analytics, AI, finance, infrastructure). The endpoint path suggests an account-related resource, but no schema, documentation, or example responses are available for this particular route. The broader platform's docs, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional content.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key","post-method"],"categories":["api-gateway","infrastructure"],"synonyms":["x402 API","pay-per-call API","USDC micropayment API","Base network API","lowpaymentfee","premium API access","crypto-paid API"],"warnings":["The specific endpoint /api/v1/accounts/26 is not listed among the documented APIs on the landing page — its purpose is unclear.","No OpenAPI schema, input parameters, or response format documentation is available.","All documentation pages (docs, pricing, README, api) render only 'Connect wallet' with no substantive content.","The broader platform lists many endpoint categories (AI, analytics, finance, utils) but none match the /accounts/ path pattern."],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/26","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/26","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but the specific endpoint /api/v1/accounts/26 has no documentation, no input/output schema, and no example responses. The broader site's docs pages are empty (just 'Connect wallet'). The actual functionality of this particular resource is 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'/request':13,28 '0.02':12,27,76,131 '000':121 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':112 '20':120 '300':143 '6':126 'Base network API' 'USDC micropayment API' 'accept':103 'access':7,22,38 'account':176 'account-rel':175 'addit':210 'ai':63,167 'among':157 'amount':117 'analyt':62,166 'api':6,21,37,88,160 'avail':187 'base':9,24,84,114,122 'base-network' 'broader':193 'call':4,19,133 'categori':59,161 'challeng':97 'commit':93 'confirm':98 'connect':205 'content':211 'contract':111 'crypto-paid API' 'data':61 'decim':127 'doc':196 'document':159,182 'endpoint':32,52,72,100,171 'equal':130 'exact':138 'exampl':184 'financ':66,168 'function':148 'howev':145 'includ':60 'infrastructur':69,169 'key':89 'land':164 'learn':65 'limit':91 'list':156 'live':102 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':64 'mani':51 'max':116 'network':85 'no-api-key' 'offer':53 'one':49 'page':165,200 'paid':79 'particular':190 'path':172 'pay':2,17 'pay-per-cal':1,16 'pay-per-call API' 'pay-per-request' 'payment':42,108,135 'per':3,18,77,132 'platform':56,194 'post':104 'post-method' 'premium':5,20,36 'premium API access' 'price':74,197 'prompt':207 'protocol':43 'provid':35 'rate':90 'readm':199 'relat':177 'render':202 'request':78,105 'requir':94,118 'resourc':46,178 'respons':185 'rout':191 'schema':181 'scheme':136 'second':144 'settl':107 'span':58 'specif':45,147 'suggest':173 'timeout':141 'unclear':152 'unit':123 'usdc':15,30,81,110,129 'usdc-settlement' 'util':70 'via':10,25,39 'wallet':206 'web3':67 'x402':11,26,41,96 'x402 API' 'x402-payment'","prices":[{"id":"01c78e0e-62a6-474e-a74e-01127494981e","listingId":"11fbb531-624e-48c8-9901-0d9ca438a0ae","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/26","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:39:26.941Z"}],"sources":[{"listingId":"11fbb531-624e-48c8-9901-0d9ca438a0ae","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/26","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:39:26.941Z","lastSeenAt":"2026-04-24T09:03:15.751Z"}],"details":{"listingId":"11fbb531-624e-48c8-9901-0d9ca438a0ae","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/26 \\\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, rate limits, or commitments","source_url":"https://lowpaymentfee.com"},{"claim":"x402 challenge returns maxAmountRequired of 20000 base units in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/accounts/26"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/accounts/26"},{"claim":"Platform offers APIs across data & analytics, AI & ML, finance & Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Accessing premium API resources with per-call USDC micropayments on Base","Agent-driven workflows that need keyless, pay-as-you-go API access","Programmatic account data retrieval behind an x402 paywall"],"bestFor":["Developers wanting no-signup, pay-per-use API access","AI agents with x402-compatible wallets on Base","Users who prefer crypto micropayments over subscription billing"],"notFor":["Users needing detailed API documentation or schemas before purchasing","High-volume use cases where per-call pricing may add up","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:38.926Z"},"updatedAt":"2026-04-24T09:03:15.751Z"}}