{"id":"75fe47bc-c851-4544-ba41-35cf840bbfd6","shortId":"hGPKpa","kind":"x402","title":"Pay-per-call premium API access on Base network via x402 protocol at $0.02/request in USDC.","tagline":"Pay-per-call premium API access on Base network via x402 protocol at $0.02/request in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol. It is one of many endpoints on the platform, which offers a variety of API 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, no rate limits, and no commitments required.\n\nThe specific endpoint `/api/v1/wire/74` is labeled \"Premium API Access\" but its exact functionality is not documented beyond that title. The x402 challenge confirms it accepts POST requests, settles in USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base, and charges a maximum of 20,000 base units (i.e., $0.02 given USDC's 6 decimals). The payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a timeout of 300 seconds.\n\nThe platform's landing page lists numerous other endpoints across analytics, AI/ML, finance, and utility categories, all at the same $0.02 price point. However, documentation pages (docs, pricing, README) all render only a \"Connect wallet\" prompt with no additional technical detail, making it impossible to determine the request/response schema for this specific wire/74 endpoint.","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","crypto-paid API"],"warnings":["The exact functionality of /api/v1/wire/74 is undocumented — 'Premium API Access' is the only description available.","All documentation pages (docs, pricing, README) render only 'Connect wallet' with no technical content.","No request or response schema is available; callers cannot know what to send or expect back.","The platform lists many endpoints but none have visible documentation beyond titles and prices."],"endpointUrl":"https://lowpaymentfee.com/api/v1/wire/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/wire/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 (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation of what this specific endpoint does, no request/response schema, and no examples. The 'Premium API Access' label is generic and uninformative. Docs pages are empty beyond a wallet connect 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'/request':16,34 '0.02':15,33,82,147,186 '000':143 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':159 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':134 '20':142 '300':164 '6':151 'Base network API' 'USDC micropayment API' 'accept':127 'access':7,25,44,111 'across':175 'addit':204 'address':158 'ai':69 'ai/ml':177 'analyt':68,176 'api':6,24,43,64,94,110 'base':9,27,90,136,144 'base-network' 'beyond':119 'call':4,22 'categori':65,181 'challeng':124 'charg':138 'commit':101 'confirm':125 'connect':199 'contract':133 'crypto-paid API' 'data':67 'decim':152 'detail':206 'determin':211 'doc':192 'document':118,190 'endpoint':38,55,78,105,174,219 'exact':114 'financ':72,178 'function':115 'given':148 'howev':189 'i.e':146 'imposs':209 'includ':66 'infrastructur':75 'key':95 'label':108 'land':169 'learn':71 'limit':98 'list':171 'lowpaymentfee' 'lowpaymentfee.com':40 'machin':70 'make':207 'mani':54 'maximum':140 'network':10,28,91 'no-api-key' 'numer':172 'offer':60 'one':52 'page':170,191 'paid':85 'pay':2,20 'pay-per-cal':1,19 'pay-per-call API' 'pay-per-request' 'payment':48,154 'per':3,21,83 'platform':58,167 'point':188 'post':128 'post-method' 'premium':5,23,42,109 'premium API' 'price':80,187,193 'prompt':201 'protocol':13,31,49 'provid':41 'rate':97 'readm':194 'render':196 'request':84,129 'request/response':213 'requir':102 'schema':214 'second':165 'sent':156 'settl':130 'specif':104,217 'technic':205 'timeout':162 'titl':121 'unit':145 'usdc':18,36,87,132,149 'usdc-settlement' 'util':76,180 'varieti':62 'via':11,29,45 'wallet':200 'web3':73 'wire/74':218 'x402':12,30,47,123 'x402 API' 'x402-payment'","prices":[{"id":"66d30620-02ce-4c7d-890a-8cc7b7624c12","listingId":"75fe47bc-c851-4544-ba41-35cf840bbfd6","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/wire/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":"2026-04-18T19:29:10.735Z"}],"sources":[{"listingId":"75fe47bc-c851-4544-ba41-35cf840bbfd6","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/wire/74","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:29:10.735Z","lastSeenAt":"2026-04-22T09:01:53.251Z"}],"details":{"listingId":"75fe47bc-c851-4544-ba41-35cf840bbfd6","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/wire/74 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\" \\\n  -d '{}'","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/wire/74"},{"claim":"All endpoints priced at $0.02 per request with no API keys, no rate limits, instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/wire/74"},{"claim":"Platform offers Data & Analytics, AI & ML, Finance & Web3, and Infrastructure API categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Accessing premium API functionality with per-request USDC micropayments","Integrating pay-as-you-go API calls without managing API keys or subscriptions","Agent-driven API consumption using x402 payment protocol on Base"],"bestFor":["Developers wanting keyless, pay-per-use API access","AI agents that can settle x402 payments autonomously","Users who prefer crypto micropayments over subscription billing"],"notFor":["Users needing detailed API documentation or guaranteed SLAs","Applications requiring free or fiat-only payment methods","High-volume use cases where per-request pricing may add up"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:30.073Z"},"updatedAt":"2026-04-22T09:01:53.251Z"}}