{"id":"8dda3c58-7c6c-4dcd-96f4-ab22316abef2","shortId":"EnGCpD","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/47` sits within a broader platform that offers multiple API categories including 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. Payment is settled on the Base network using USDC (contract 0x8335…2913) with an exact-payment scheme. The maxAmountRequired is 20,000 base units, which at 6 decimals equals $0.02 per call. No API keys or rate limits are advertised; access is granted purely through the x402 payment header. The endpoint accepts POST requests and returns application/json.\n\nHowever, the specific functionality of `/api/v1/accounts/47` is unclear. The provider's landing page lists many endpoints across analytics, AI, finance, and utility categories, but the `/api/v1/accounts/` path is not among them. There is no OpenAPI spec, no detailed documentation (docs, pricing, and README pages all render only a \"Connect wallet\" prompt), and no request/response schema beyond the basic outputSchema in the x402 challenge. The actual data returned by this particular endpoint remains unknown.","tags":[],"capabilities":["x402-payment","usdc-base-network","pay-per-request","json-response","no-api-key","post-method"],"categories":["api","infrastructure"],"synonyms":["premium API","x402 API","pay-per-call API","USDC API access","Base network API","lowpaymentfee","micropayment API"],"warnings":["The specific endpoint /api/v1/accounts/47 is not listed among the provider's advertised APIs — its purpose is unclear.","No OpenAPI spec or detailed documentation is available; docs/pricing/README pages only show 'Connect wallet'.","Request and response schemas are unknown — no examples or field descriptions exist.","The broader platform lists many endpoint categories but none match the /accounts/ path."],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/47","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/47","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no documentation beyond a wallet-connect prompt, no request/response examples, and the specific purpose of /api/v1/accounts/47 is not documented anywhere on the site. This is effectively a stub 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'/api/v1/accounts/47':47,148 '/request':13,28 '0.02':12,27,72,115 '000':107 '0x8335':95 '20':106 '2913':96 '6':112 'Base network API' 'USDC API access' 'accept':137 'access':7,22,38,126 'across':159 'actual':207 'advertis':125 'ai':61,161 'among':172 'analyt':60,160 'api':6,21,37,56,119 'application/json':142 'base':9,24,90,108 'basic':200 'beyond':198 'broader':51 'call':4,19,117 'categori':57,165 'challeng':84,205 'connect':191 'contract':94 'data':59,208 'decim':113 'detail':180 'doc':182 'document':181 'endpoint':32,76,136,158,213 'equal':114 'exact':100 'exact-pay':99 'financ':64,162 'function':146 'grant':128 'header':134 'howev':143 'includ':58 'infrastructur':67 'json-response' 'key':120 'land':154 'learn':63 'limit':123 'list':156 'live':78 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':62 'mani':157 'maxamountrequir':104 'micropayment API' 'multipl':55 'network':91 'no-api-key' 'offer':54 'openapi':177 'outputschema':201 'page':155,186 'particular':212 'path':169 'pay':2,17 'pay-per-cal':1,16 'pay-per-call API' 'pay-per-request' 'payment':42,85,101,133 'per':3,18,73,116 'platform':52 'post':138 'post-method' 'premium':5,20,36 'premium API' 'price':70,183 'prompt':193 'protocol':43 'provid':35,152 'pure':129 'rate':122 'readm':185 'remain':214 'render':188 'request':74,139 'request/response':196 'resourc':46 'return':80,141,209 'schema':197 'scheme':102 'settl':87 'sit':48 'spec':178 'specif':45,145 'unclear':150 'unit':109 'unknown':215 'usdc':15,30,93 'usdc-base-network' 'use':92 'util':68,164 'valid':82 'via':10,25,39 'wallet':192 'web3':65 'within':49 'x402':11,26,41,83,132,204 'x402 API' 'x402-payment'","prices":[{"id":"a388a03e-7e35-494e-ab5d-0cedb1398cc4","listingId":"8dda3c58-7c6c-4dcd-96f4-ab22316abef2","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/47","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:39:42.610Z"}],"sources":[{"listingId":"8dda3c58-7c6c-4dcd-96f4-ab22316abef2","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/47","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:39:42.610Z","lastSeenAt":"2026-04-22T18:03:34.455Z"}],"details":{"listingId":"8dda3c58-7c6c-4dcd-96f4-ab22316abef2","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/47 \\\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 on Base network using USDC","source_url":"https://lowpaymentfee.com/api/v1/accounts/47"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/accounts/47"},{"claim":"Available API categories include Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure","source_url":"https://lowpaymentfee.com"}],"useCases":["Accessing premium data or account information via a single micropayment","Agent-driven API consumption without pre-registration or API keys","Programmatic pay-per-use access settled on Base L2"],"bestFor":["Developers wanting keyless, pay-per-call API access","AI agents that can settle x402 payments on Base","Users who prefer crypto micropayments over subscription billing"],"notFor":["Users needing detailed documentation or OpenAPI specs before integrating","High-volume consumers who would benefit from bulk/subscription pricing","Anyone requiring non-crypto payment methods"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:38.159Z"},"updatedAt":"2026-04-22T18:03:34.455Z"}}