{"id":"66719fb4-2c54-473e-b086-ec431e2cb8df","shortId":"pR5qg6","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/127` 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 max 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 specific functionality of `/api/v1/wire/127` is not documented beyond the generic label \"Premium API Access.\" The platform lists numerous other endpoints with clear purposes (sentiment analysis, text summarization, geocoding, etc.), but this particular wire endpoint's behavior is unclear. The endpoint accepts POST requests and returns application/json. No request body schema or response schema is documented.","tags":[],"capabilities":["x402-payment","pay-per-request","base-network","usdc-settlement","no-api-key","json-response"],"categories":["api-marketplace","infrastructure"],"synonyms":["x402 API","pay-per-call API","USDC micropayment API","Base network API","lowpaymentfee","crypto-paid API","402 payment endpoint"],"warnings":["The specific functionality of /api/v1/wire/127 is undocumented — 'Premium API Access' is a generic label","No request body schema or response schema available","Documentation pages (/docs, /pricing, /README) contain no useful content beyond 'Connect wallet'","Cannot verify what data or service this endpoint actually provides"],"endpointUrl":"https://lowpaymentfee.com/api/v1/wire/127","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/127","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 there is no documentation of what /api/v1/wire/127 actually does, no request/response schema, and the docs/pricing/README pages all just show 'Connect wallet' with no useful 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'/request':16,34 '0.02':15,33,130 '000':120 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':110 '20':119 '402 payment endpoint' '6':125 'Base network API' 'USDC micropayment API' 'accept':183 'access':7,25,44,156 'advertis':137 'ai':70 'amount':117 'analysi':167 'analyt':69 'api':6,24,43,58,91,155 'application/json':188 'base':9,27,105,121 'base-network' 'behavior':178 'beyond':150 'bodi':191 'call':4,22 'categori':66 'challeng':113 'clear':164 'commit':98 'consist':133 'contract':109 'crypto-paid API' 'data':68 'decim':126 'document':149,197 'endpoint':38,52,59,162,176,182 'equal':129 'etc':171 'financ':73 'function':144 'generic':152 'geocod':170 'includ':67 'indic':114 'infrastructur':76 'json-response' 'key':92 'label':153 'land':140 'learn':72 'limit':95 'list':159 'lowpaymentfee' 'lowpaymentfee.com':40 'machin':71 'mani':57 'max':116 'model':88 'network':10,28,106 'no-api-key' 'numer':160 'offer':60 'one':55 'oper':80 'page':141 'particular':174 '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':63,79,158 'post':184 'premium':5,23,42,154 'price':136 'protocol':13,31,49 'provid':41 'purpos':165 'rate':94 'request':87,132,185,190 'requir':99 'respons':194 'return':187 'schema':192,195 'sentiment':166 'settl':102 'simpl':83 'span':65 'specif':51,143 'summar':169 'text':168 'unclear':180 'unit':122 'usdc':18,36,108,128 'usdc-settlement' 'use':107 'util':77 'via':11,29,45 'web3':74 'wire':175 'x402':12,30,47,112 'x402 API' 'x402-payment'","prices":[{"id":"395037c8-3d70-40e4-a0ef-b6cfbff79e18","listingId":"66719fb4-2c54-473e-b086-ec431e2cb8df","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/127","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:28:33.148Z"}],"sources":[{"listingId":"66719fb4-2c54-473e-b086-ec431e2cb8df","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/wire/127","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:28:33.148Z","lastSeenAt":"2026-04-22T15:02:28.510Z"}],"details":{"listingId":"66719fb4-2c54-473e-b086-ec431e2cb8df","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/wire/127 \\\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":"Platform charges $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 on Base network","source_url":"https://lowpaymentfee.com/api/v1/wire/127"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/wire/127"}],"useCases":["Accessing premium API services without requiring API key registration","Making one-off API calls with instant crypto micropayments","Integrating pay-per-use endpoints into agent workflows without subscriptions"],"bestFor":["Developers wanting zero-signup API access","AI agents that can settle x402 payments autonomously","Users who prefer per-request billing over monthly subscriptions"],"notFor":["Users who need detailed documentation of request/response schemas before integrating","High-volume use cases where per-request pricing may add up compared to bulk plans","Users without access to USDC on Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:31.956Z"},"updatedAt":"2026-04-22T15:02:28.510Z"}}