{"id":"0431d3b7-0fdd-4e96-8275-8bfcd613453f","shortId":"GDHXC7","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 offered by the platform, which spans categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. Each request costs $0.02 in USDC on the Base network, with no API keys, no rate limits, and no commitments required.\n\nThe specific endpoint `/api/v1/wire/148` is listed generically as \"Premium API Access\" without further documentation on what data or service it returns. The x402 challenge confirms it is live, accepts POST requests, and charges a maximum of 20,000 base units of USDC (0.02 USD) per call, settling to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 on Base. The platform advertises instant access with no signup friction — callers simply attach an X-PAYMENT header to authenticate payment.\n\nDocumentation is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available. The exact functionality behind this particular wire endpoint (148) is unclear from the available material.","tags":[],"capabilities":["x402-payment","usdc-base-network","pay-per-request","no-api-key","post-method"],"categories":["api-marketplace","payments"],"synonyms":["lowpaymentfee","x402 api","pay-per-call api","USDC micropayment api","base network api","premium api access"],"warnings":["No documentation available — docs/pricing/README pages only show 'Connect wallet'","No OpenAPI spec or request/response schema provided","The specific functionality of /api/v1/wire/148 ('Premium API Access') is undefined in available material","Cannot verify what data or service is actually returned upon successful payment"],"endpointUrl":"https://lowpaymentfee.com/api/v1/wire/148","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/148","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is confirmed live via a valid 402 challenge, but there is no documentation, no request/response schema, no examples, and the purpose of this specific endpoint (/api/v1/wire/148) is entirely unclear. The platform's docs pages are empty beyond a wallet connect 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'/request':16,34 '0.02':15,33,77,137 '000':132 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':144 '148':211 '20':131 'USDC micropayment api' 'accept':123 'access':7,25,44,105,151 'addit':187 'address':143 'advertis':149 'ai':66 'analyt':65 'api':6,24,43,86,104,173 'attach':158 'authent':165 'avail':202,216 'base':9,27,82,133,146 'base network api' 'behind':206 'call':4,22,140 'caller':156 'categori':62 'challeng':118 'charg':127 'commit':93 'confirm':119 'connect':182 'cost':76 'data':64,111 'detail':189 'doc':172 'document':108,167 'endpoint':38,55,97,210 'exact':204 'exampl':200 'extrem':169 'financ':69 'friction':155 'function':205 'generic':101 'header':163 'includ':63 'infrastructur':72 'instant':150 'key':87 'learn':68 'limit':90 'list':100 'live':122 'lowpaymentfee' 'lowpaymentfee.com':40 'machin':67 'mani':54 'materi':217 'maximum':129 'network':10,28,83 'no-api-key' 'offer':56 'one':52 'openapi':193 'page':177 'particular':208 'pay':2,20 'pay-per-cal':1,19 'pay-per-call api' 'pay-per-request' 'payload':201 'payment':48,162,166 'per':3,21,139 'platform':59,148 'post':124 'post-method' 'premium':5,23,42,103 'premium api access' 'price':174 'prompt':184 'protocol':13,31,49 'provid':41 'rate':89 'readm':176 'render':179 'request':75,125 'request/response':196 'requir':94 'return':115 'schema':197 'servic':113 'settl':141 'signup':154 'simpli':157 'span':61 'spars':170 'spec':194 'specif':96 'technic':188 'unclear':213 'unit':134 'usd':138 'usdc':18,36,79,136 'usdc-base-network' 'util':73 'via':11,29,45 'wallet':183 'web3':70 'wire':209 'without':106 'x':161 'x-payment':160 'x402':12,30,47,117 'x402 api' 'x402-payment'","prices":[{"id":"50480a8a-d96b-4bfd-b988-6c46de9266d3","listingId":"0431d3b7-0fdd-4e96-8275-8bfcd613453f","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/148","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:28:48.958Z"}],"sources":[{"listingId":"0431d3b7-0fdd-4e96-8275-8bfcd613453f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/wire/148","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:28:48.958Z","lastSeenAt":"2026-04-22T02:31:40.526Z"}],"details":{"listingId":"0431d3b7-0fdd-4e96-8275-8bfcd613453f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/wire/148 \\\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":"Endpoint returns 402 with x402 challenge requiring 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/wire/148"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/wire/148"}],"useCases":["Accessing premium data or services without subscription or API key management","Making one-off paid API calls settled instantly on Base L2","Integrating pay-per-use endpoints into autonomous agent workflows"],"bestFor":["Developers wanting frictionless pay-per-call API access","AI agents that can settle x402 payments autonomously","Users who prefer crypto micropayments over traditional billing"],"notFor":["Users needing detailed documentation or guaranteed SLAs","Anyone without USDC on Base network","High-volume consumers who need bulk pricing or rate guarantees"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:31.116Z"},"updatedAt":"2026-04-22T02:31:40.526Z"}}