{"id":"01705e16-8940-4713-8750-3ae863712f4b","shortId":"z5MhVT","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/wire/84` is one of many endpoints offered by the platform, which spans categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints on the platform 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 x402 challenge confirms the endpoint is live, accepting POST requests and settling payments in USDC (contract 0x8335…2913 on Base). The maximum amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 per call. Payment is made via the x402 \"exact\" scheme with a 300-second timeout window. The response MIME type is application/json.\n\nWhile the platform advertises a broad suite of APIs (metrics, reports, sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, conversion, and generation), this specific listing covers the `/api/v1/wire/84` path. The exact functionality behind this particular wire endpoint is not documented — the description simply reads \"Premium API Access.\" No OpenAPI schema, detailed documentation, or example responses were found in the crawl. The docs, API, pricing, and README pages all returned 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":["lowpaymentfee","low payment fee API","x402 premium API","pay-per-call API","USDC API access","Base network API","micropayment API"],"warnings":["The specific functionality of /api/v1/wire/84 is not documented anywhere — 'Premium API Access' is the only description available.","No OpenAPI spec, no example request/response payloads, and no detailed documentation were found.","All secondary pages (docs, API, pricing, README) returned only 'Connect wallet' with no substantive content.","The relationship between /api/v1/wire/84 and the advertised API categories (analytics, AI, finance, utils) is unclear."],"endpointUrl":"https://lowpaymentfee.com/api/v1/wire/84","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/84","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 the x402 challenge is well-formed with clear pricing ($0.02 USDC on Base). However, there is no documentation, no OpenAPI schema, no example responses, and the specific functionality of /api/v1/wire/84 is entirely undocumented. The docs/pricing/README pages are empty beyond a wallet connect prompt. This is effectively a stub 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'/request':13,28 '0.02':12,27,80,137 '000':128 '0x8335':118 '20':127 '2913':119 '300':150 '6':133 'Base network API' 'USDC API access' 'accept':109 'access':7,22,38,210 'advertis':163 'ai':64 'amount':124 'analysi':172 'analyt':63 'api':6,21,37,92,168,209,226 'application/json':159 'base':9,24,88,121,129 'behind':196 'broad':165 'call':4,19,139 'categori':60 'challeng':103 'classif':175 'commit':99 'confirm':104 'connect':235 'content':241 'contract':117 'convers':183 'cover':189 'crawl':223 'data':62 'decim':134 'descript':205 'detail':214 'doc':225 'document':203,215 'embed':176 'endpoint':32,53,73,106,200 'equal':136 'exact':146,194 'exampl':217 'exchang':179 'feed':178 'financ':67 'found':220 'function':195 'generat':185 'geocod':181 'includ':61 'infrastructur':70 'json-response' 'key':93 'learn':66 'limit':96 'list':188 'live':108 'low payment fee API' 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':65 'made':142 'mani':52 'maximum':123 'metric':169 'micropayment API' 'mime':156 'network':89 'no-api-key' 'offer':54 'one':50 'openapi':212 'page':230 'paid':83 'particular':198 'path':47,192 'pay':2,17 'pay-per-cal':1,16 'pay-per-call API' 'pay-per-request' 'payment':42,114,140 'per':3,18,81,138 'platform':57,76,162 'post':110 'post-method' 'premium':5,20,36,208 'price':78,177,227 'prompt':237 'protocol':43 'provid':35 'rate':95,180 'read':207 'readm':229 'report':170 'request':82,111 'requir':100,125 'resourc':46 'respons':155,218 'return':232 'schema':213 'scheme':147 'second':151 'sentiment':171 'settl':113 'simpli':206 'span':59 'specif':45,187 'substant':240 'suit':166 'summar':174 'text':173 'timeout':152 'type':157 'unit':130 'usdc':15,30,85,116,132 'usdc-base-network' 'util':71 'valid':182 'via':10,25,39,143 'wallet':236 'web3':68 'window':153 'wire':199 'x402':11,26,41,102,145 'x402 premium API' 'x402-payment'","prices":[{"id":"5f2e00a9-5813-4864-a312-0bacf29cf7cb","listingId":"01705e16-8940-4713-8750-3ae863712f4b","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/84","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:29:09.504Z"}],"sources":[{"listingId":"01705e16-8940-4713-8750-3ae863712f4b","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/wire/84","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:29:09.504Z","lastSeenAt":"2026-04-22T08:31:54.678Z"}],"details":{"listingId":"01705e16-8940-4713-8750-3ae863712f4b","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/wire/84 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\n  -d '{}'","exampleRequest":{"url":"https://lowpaymentfee.com/api/v1/wire/84","body":{},"method":"POST","headers":{"X-PAYMENT":"<x402-payment-header>","Content-Type":"application/json"}},"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"All endpoints priced at $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 returns maxAmountRequired of 20000 base units USDC (=$0.02) on Base with 300s timeout","source_url":"https://lowpaymentfee.com/api/v1/wire/84"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/wire/84"},{"claim":"Platform offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Accessing premium API functionality with per-request USDC micropayments on Base","Agent-driven workflows that need keyless, pay-as-you-go API access","Integrating x402-compatible payment flows into automated pipelines"],"bestFor":["Developers wanting no-signup, pay-per-call 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 OpenAPI specs before integrating","Anyone without a Base-network USDC wallet","High-volume use cases where per-request pricing may add up compared to flat-rate plans"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:30.122Z"},"updatedAt":"2026-04-22T08:31:54.678Z"}}