{"id":"061f1c4c-ff4b-4d68-b80a-1d9d4a3423a4","shortId":"tZgEf9","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 path `/api/v1/accounts/108` sits within a broader platform that offers multiple API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints on the platform are priced at $0.02 per request, payable 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 `0x8335...2913` on Base). The max amount required is 20,000 base units, which at 6 decimals for USDC equals $0.02 per call. Payment is made via the `exact` scheme with a 300-second timeout. The response MIME type is `application/json`.\n\nThe specific functionality of the `/api/v1/accounts/108` path is not documented beyond the generic label \"Premium API Access.\" The platform's landing page lists numerous other endpoints (metrics, reports, sentiment analysis, summarization, embeddings, price feeds, geocoding, etc.) but does not describe what the accounts endpoint returns. No OpenAPI schema, request/response examples, or detailed documentation were found — the docs, pricing, and README pages all rendered only a \"Connect wallet\" prompt with no substantive content.","tags":[],"capabilities":["x402-payment","usdc-base-network","pay-per-request","json-response","no-api-key","post-method"],"categories":["api-gateway","infrastructure"],"synonyms":["premium API","paid API access","x402 endpoint","USDC API","Base network API","lowpaymentfee","micropayment API","accounts API"],"warnings":["The specific functionality of /api/v1/accounts/108 is undocumented — 'Premium API Access' is a generic label with no detail on inputs or outputs.","No OpenAPI spec, request schema, or response schema available.","All documentation pages (docs, pricing, README, api) returned only a 'Connect wallet' prompt with no substantive content.","The platform lists many endpoint categories on its landing page but it is unclear which are actually functional versus placeholder."],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/108","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/108","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 via a valid 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no documentation, no OpenAPI schema, no request/response examples, and the specific purpose of /api/v1/accounts/108 is entirely undocumented. The docs and other pages returned only 'Connect wallet' with no 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'/request':13,28 '0.02':12,27,78,134 '000':124 '0x8335':114 '20':123 '2913':115 '300':146 '6':129 'Base network API' 'USDC API' 'accept':105 'access':7,22,38,171 'account':197 'accounts API' 'ai':62 'amount':120 'analysi':184 'analyt':61 'api':6,21,37,57,90,170 'application/json':154 'base':9,24,86,117,125 'beyond':165 'broader':52 'call':4,19,136 'categori':58 'challeng':99 'commit':95 'confirm':100 'connect':220 'content':226 'contract':113 'data':60 'decim':130 'describ':194 'detail':206 'doc':211 'document':164,207 'embed':186 'endpoint':32,71,102,180,198 'equal':133 'etc':190 'exact':142 'exampl':204 'feed':188 'financ':65 'found':209 'function':157 'generic':167 'geocod':189 'includ':59 'infrastructur':68 'json-response' 'key':91 'label':168 'land':175 'learn':64 'limit':93 'list':177 'live':104 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':63 'made':139 'max':119 'metric':181 'micropayment API' 'mime':151 'multipl':56 'network':87 'no-api-key' 'numer':178 'offer':55 'openapi':201 'page':176,215 'paid API access' 'path':47,161 'pay':2,17 'pay-per-cal':1,16 'pay-per-request' 'payabl':81 'payment':42,110,137 'per':3,18,79,135 'platform':53,74,173 'post':106 'post-method' 'premium':5,20,36,169 'premium API' 'price':76,187,212 'prompt':222 'protocol':43 'provid':35 'rate':92 'readm':214 'render':217 'report':182 'request':80,107 'request/response':203 'requir':96,121 'resourc':46 'respons':150 'return':199 'schema':202 'scheme':143 'second':147 'sentiment':183 'settl':109 'sit':49 'specif':45,156 'substant':225 'summar':185 'timeout':148 'type':152 'unit':126 'usdc':15,30,83,112,132 'usdc-base-network' 'util':69 'via':10,25,39,140 'wallet':221 'web3':66 'within':50 'x402':11,26,41,98 'x402 endpoint' 'x402-payment'","prices":[{"id":"d1567483-bbbc-4f38-8fa3-70a3f76c8756","listingId":"061f1c4c-ff4b-4d68-b80a-1d9d4a3423a4","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/108","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:40:43.762Z"}],"sources":[{"listingId":"061f1c4c-ff4b-4d68-b80a-1d9d4a3423a4","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/108","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:40:43.762Z","lastSeenAt":"2026-04-24T09:03:19.332Z"}],"details":{"listingId":"061f1c4c-ff4b-4d68-b80a-1d9d4a3423a4","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/108 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns 402 with x402 challenge requiring USDC payment on Base network","source_url":"https://lowpaymentfee.com/api/v1/accounts/108"},{"claim":"Max amount required is 20000 base units USDC (6 decimals = $0.02)","source_url":"https://lowpaymentfee.com/api/v1/accounts/108"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/accounts/108"}],"useCases":["Accessing premium API data 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 who need detailed API documentation or schemas before integrating","Anyone without a Base-compatible USDC wallet","High-volume use cases where per-request pricing may add up"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:35.295Z"},"updatedAt":"2026-04-24T09:03:19.332Z"}}