{"id":"706efd54-5ca8-4957-b49f-2335fa2a644a","shortId":"3N27tg","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 path `/api/v1/accounts/74` appears to be one of many endpoints offered by the platform, which advertises a broad catalog spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request.\n\nThe endpoint is live and returns a valid x402 challenge on POST requests. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum amount of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). The x402 scheme is \"exact,\" meaning each call requires a one-shot micropayment. No API keys or rate limits are advertised; access is granted purely through the payment header.\n\nThe platform's landing page lists 16 endpoints across four categories, but documentation pages (/docs, /pricing, /api, /README) all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI spec, no request/response schema documentation, and no examples available. The specific functionality behind `/api/v1/accounts/74` is not described beyond the generic label \"Premium API Access,\" making it unclear what data or service this particular endpoint returns.","tags":[],"capabilities":["x402-payment","usdc-micropayment","base-network","pay-per-request","no-api-key","http-post"],"categories":["api-marketplace","infrastructure"],"synonyms":["x402 API","micropayment API","pay-per-call API","USDC API access","Base network API","lowpaymentfee"],"warnings":["No documentation available — /docs, /pricing, /api, and /README pages all render only 'Connect wallet' with no content.","The specific functionality of /api/v1/accounts/74 is not described; 'Premium API Access' is a generic label.","No OpenAPI spec or request/response schema is provided.","No examples of expected input or output are available.","The platform lists many endpoints but none have documented behavior."],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/74","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/74","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is essentially no documentation: no OpenAPI spec, no request/response schemas, no examples, and the docs/pricing/README pages are empty. The specific purpose of /api/v1/accounts/74 is undocumented beyond a generic 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'/api/v1/accounts/74':47,198 '/docs':166 '/pricing':167 '/readme':169 '/request':13,28 '0.02':12,27,78,117 '000':112 '0x8335':104 '16':158 '20':111 '2913':105 '6':120 'Base network API' 'USDC API access' 'access':7,22,38,144,208 'across':160 'advertis':60,143 'ai':67 'amount':109 'analyt':66 'api':6,21,37,137,207 'appear':48 'avail':193 'base':9,24,99,113 'base-network' 'behind':197 'beyond':202 'broad':62 'call':4,19,129 'catalog':63 'categori':162 'challeng':90 'connect':174 'content':180 'contract':103 'data':65,213 'decim':121 'describ':201 'document':164,189 'endpoint':32,54,82,159,218 'equal':116 'exact':126 'exampl':192 'financ':70 'four':161 'function':196 'generic':204 'grant':146 'header':151 'http-post' 'infrastructur':73 'key':138 'label':205 'land':155 'learn':69 'limit':141 'list':157 'live':84 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':68 'make':209 'mani':53 'maximum':108 'mean':127 'micropay':135 'micropayment API' 'network':100 'no-api-key' 'offer':55 'one':51,133 'one-shot':132 'openapi':184 'page':156,165 'particular':217 'path':46 'pay':2,17 'pay-per-cal':1,16 'pay-per-call API' 'pay-per-request' 'payment':42,94,150 'per':3,18,79 'platform':58,153 'post':92 'premium':5,20,36,206 'price':76 'prompt':176 'protocol':43 'provid':35 'pure':147 'rate':140 'render':171 'request':80,93 'request/response':187 'requir':130 'return':86,219 'schema':188 'scheme':124 'servic':215 'settl':96 'shot':134 'span':64 'spec':185 'specif':45,195 'substant':179 'unclear':211 'unit':114 'usdc':15,30,102,118 'usdc-micropayment' 'use':101,119 'util':74 'valid':88 'via':10,25,39 'wallet':175 'web3':71 'x402':11,26,41,89,123 'x402 API' 'x402-payment'","prices":[{"id":"e2c15958-28d7-4942-9de3-4b68fdc04b21","listingId":"706efd54-5ca8-4957-b49f-2335fa2a644a","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/74","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:40:04.888Z"}],"sources":[{"listingId":"706efd54-5ca8-4957-b49f-2335fa2a644a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/74","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:40:04.888Z","lastSeenAt":"2026-04-23T09:00:50.387Z"}],"details":{"listingId":"706efd54-5ca8-4957-b49f-2335fa2a644a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/74 \\\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":"The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/accounts/74"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/accounts/74"},{"claim":"Documentation pages (/docs, /pricing, /api, /README) contain only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Accessing premium API data with per-request USDC micropayments on Base","Agent-driven API consumption without pre-registration or API keys","Programmatic pay-as-you-go access to data or utility endpoints"],"bestFor":["Developers wanting zero-signup API access via crypto micropayments","AI agents that can settle x402 payments autonomously","Users on the Base L2 network with USDC"],"notFor":["Users needing detailed API documentation or schemas before integrating","Anyone without a Base-compatible wallet and USDC","High-volume consumers who need bulk pricing or rate guarantees"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:37.149Z"},"updatedAt":"2026-04-23T09:00:50.387Z"}}