{"id":"12873166-ab6d-47f8-b939-978b86d13927","shortId":"DtdQNJ","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. The specific endpoint `/api/v1/wire/173` is one of many API endpoints offered by the platform, which spans categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities.\n\nThe platform operates on a simple pay-per-request model with no API keys, no rate limits, and no commitments required. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The x402 challenge indicates a maximum amount of 20,000 base units, which at 6 decimals for USDC equals $0.02 per request — consistent with the pricing advertised on the landing page.\n\nThe endpoint accepts POST requests and returns application/json responses. However, the specific functionality of `/api/v1/wire/173` is not documented on the site — it does not appear in the listed API catalog. The platform's documented endpoints cover metrics, reports, data export, insights, sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and generation. Without further documentation, the exact purpose of this particular wire endpoint remains unclear.","tags":[],"capabilities":["x402-payment","pay-per-request","usdc-settlement","base-network","json-response","no-api-key","no-rate-limit"],"categories":["api-marketplace","infrastructure"],"synonyms":["x402 API","pay-per-call API","USDC micropayment API","Base network API","lowpaymentfee","crypto-paid API"],"warnings":["The specific endpoint /api/v1/wire/173 does not appear in the platform's publicly listed API catalog — its exact functionality is unknown.","Documentation pages (/docs, /pricing, /README) contain no useful content beyond a 'Connect wallet' prompt.","No input/output schema or example responses are available for this endpoint."],"endpointUrl":"https://lowpaymentfee.com/api/v1/wire/173","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/173","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but the specific functionality of /api/v1/wire/173 is undocumented. No request/response schema, no examples, and the docs/pricing/README pages all render only a 'Connect wallet' prompt with no useful 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'/request':16,34 '0.02':15,33,130 '000':120 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':110 '20':119 '6':125 'Base network API' 'USDC micropayment API' 'accept':144 'access':7,25,44 'advertis':137 'ai':70 'amount':117 'analysi':184 'analyt':69 'api':6,24,43,58,91,170 'appear':166 'application/json':149 'base':9,27,105,121 'base-network' 'call':4,22 'catalog':171 'categori':66 'challeng':113 'classif':187 'commit':98 'consist':133 'contract':109 'convers':199 'cover':177 'crypto-paid API' 'data':68,180 'decim':126 'document':159,175,204 'embed':188 'endpoint':38,52,59,143,176,212 'equal':129 'estim':196 'exact':206 'exchang':191 'export':181 'feed':190 'financ':73 'function':154 'gas':195 'generat':201 'geocod':197 'howev':151 'includ':67 'indic':114 'infrastructur':76 'insight':182 'json-response' 'key':92 'land':140 'learn':72 'limit':95 'list':169 'lowpaymentfee' 'lowpaymentfee.com':40 'machin':71 'mani':57 'maximum':116 'metric':178 'model':88 'network':10,28,106 'no-api-key' 'no-rate-limit' 'offer':60 'one':55 'oper':80 'page':141 'particular':210 'pay':2,20,85 'pay-per-cal':1,19 'pay-per-call API' 'pay-per-request':84 'payment':48,100 'per':3,21,86,131 'platform':63,79,173 'post':145 'premium':5,23,42 'price':136,189 'protocol':13,31,49 'provid':41 'purpos':207 'quot':194 'rate':94,192 'remain':213 'report':179 'request':87,132,146 'requir':99 'respons':150 'return':148 'sentiment':183 'settl':102 'simpl':83 'site':162 'span':65 'specif':51,153 'summar':186 'text':185 'token':193 'unclear':214 'unit':122 'usdc':18,36,108,128 'usdc-settlement' 'use':107 'util':77 'valid':198 'via':11,29,45 'web3':74 'wire':211 'without':202 'x402':12,30,47,112 'x402 API' 'x402-payment'","prices":[{"id":"ce57a883-1409-4cfe-bea5-9eea39624401","listingId":"12873166-ab6d-47f8-b939-978b86d13927","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/173","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:28:47.806Z"}],"sources":[{"listingId":"12873166-ab6d-47f8-b939-978b86d13927","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/wire/173","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:28:47.806Z","lastSeenAt":"2026-04-22T13:31:59.717Z"}],"details":{"listingId":"12873166-ab6d-47f8-b939-978b86d13927","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/wire/173 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Platform advertises $0.02 per request with no API keys, no rate limits, and instant access on Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"x402 challenge shows maxAmountRequired of 20000 base units in USDC (6 decimals) = $0.02 on Base network.","source_url":"https://lowpaymentfee.com/api/v1/wire/173"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/wire/173"}],"useCases":["Accessing premium API services without traditional API key registration","Making one-off API calls with instant crypto micropayments","Integrating pay-per-use endpoints into agent workflows without subscription overhead"],"bestFor":["Developers wanting frictionless API access without signup","AI agents that can settle payments via x402 on Base","Users who prefer pay-as-you-go over subscription models"],"notFor":["Users without access to USDC on Base network","High-volume use cases where subscription pricing would be cheaper","Users needing detailed documentation or SLA guarantees"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:31.116Z"},"updatedAt":"2026-04-22T13:31:59.717Z"}}