{"id":"8cbd3cc8-3fa9-4528-a43b-b27026d52415","shortId":"hqvcg7","kind":"x402","title":"Pay-per-request premium API access on Base via x402 protocol at $0.02/call in USDC.","tagline":"Pay-per-request premium API access on Base via x402 protocol at $0.02/call in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol. The specific resource `/api/v1/orders/76` accepts POST requests and charges 20,000 base units of USDC (USD Coin, 6 decimals) on the Base network, which equals $0.02 per request. Payment is handled entirely through the X-PAYMENT header — no API keys or accounts are required.\n\nThe broader lowpaymentfee.com platform advertises multiple API categories including Data & Analytics (metrics, reports, data export, insights), AI & Machine Learning (sentiment analysis, text summarization, classification, embeddings), Finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and Infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request with no rate limits or minimum commitments.\n\nHowever, the specific endpoint `/api/v1/orders/76` is labeled only as \"Premium API Access\" with no further documentation about what data or functionality it returns. The docs, pricing, and API pages on the site all render only a \"Connect wallet\" prompt with no additional technical documentation. Without a clear description of the response payload or input parameters for this particular order endpoint, its exact purpose remains unclear.","tags":[],"capabilities":["x402-payment","pay-per-request","usdc-base-network","no-api-key","post-method"],"categories":["api-marketplace","payments"],"synonyms":["x402 API","pay-per-call API","USDC micropayment endpoint","Base network API","lowpaymentfee","crypto-paid API"],"warnings":["No documentation available for this specific endpoint's functionality or response format","All documentation pages on the site render only 'Connect wallet' with no technical content","The endpoint path '/api/v1/orders/76' suggests a specific order resource but its purpose is undocumented","Cannot verify what data or service is actually delivered after payment"],"endpointUrl":"https://lowpaymentfee.com/api/v1/orders/76","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/orders/76","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 about what this specific endpoint returns, no input/output schema beyond the x402 challenge metadata, and the docs pages are empty. The purpose of '/api/v1/orders/76' is entirely 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'/call':15,32 '0.02':14,31,73,140 '000':58 '20':57 '6':65 'Base network API' 'USDC micropayment endpoint' 'accept':52 'access':7,24,42,161 'account':90 'addit':191 'advertis':97 'ai':109 'analysi':113 'analyt':103 'api':6,23,41,87,99,160,177 'base':9,26,59,69 'broader':94 'categori':100 'charg':56 'classif':116 'clear':196 'coin':64 'commit':149 'connect':186 'convers':133 'crypto-paid API' 'data':102,106,168 'decim':66 'descript':197 'doc':174 'document':165,193 'embed':117 'endpoint':36,136,153,209 'entir':79 'equal':72 'estim':127 'exact':211 'exchang':122 'export':107 'feed':121 'financ':118 'function':170 'gas':126 'generat':134 'geocod':131 'handl':78 'header':85 'howev':150 'includ':101 'infrastructur':129 'input':203 'insight':108 'key':88 'label':156 'learn':111 'limit':146 'list':138 'lowpaymentfee' 'lowpaymentfee.com':38,95 'machin':110 'metric':104 'minimum':148 'multipl':98 'network':70 'no-api-key' 'order':208 'page':178 'paramet':204 'particular':207 'pay':2,19 'pay-per-call API' 'pay-per-request':1,18 'payload':201 'payment':46,76,84 'per':3,20,74,141 'platform':96 'post':53 'post-method' 'premium':5,22,40,159 'price':120,175 'prompt':188 'protocol':12,29,47 'provid':39 'purpos':212 'quot':125 'rate':123,145 'remain':213 'render':183 'report':105 'request':4,21,54,75,142 'requir':92 'resourc':50 'respons':200 'return':172 'sentiment':112 'site':181 'specif':49,152 'summar':115 'technic':192 'text':114 'token':124 'unclear':214 'unit':60 'usd':63 'usdc':17,34,62 'usdc-base-network' 'util':130 'valid':132 'via':10,27,43 'wallet':187 'web3':119 'without':194 'x':83 'x-payment':82 'x402':11,28,45 'x402 API' 'x402-payment'","prices":[{"id":"60a8c722-c040-492c-9a2c-d30d78f6d165","listingId":"8cbd3cc8-3fa9-4528-a43b-b27026d52415","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/orders/76","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:35:48.192Z"}],"sources":[{"listingId":"8cbd3cc8-3fa9-4528-a43b-b27026d52415","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/orders/76","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:35:48.192Z","lastSeenAt":"2026-04-23T18:03:21.259Z"}],"details":{"listingId":"8cbd3cc8-3fa9-4528-a43b-b27026d52415","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/orders/76 \\\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":"The endpoint charges 20,000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network","source_url":"https://lowpaymentfee.com/api/v1/orders/76"},{"claim":"All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"The platform offers APIs across Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Accessing premium data or services without creating an account or obtaining API keys","Making one-off API calls paid directly in USDC on Base","Integrating pay-per-request services into autonomous agent workflows"],"bestFor":["Developers who want instant API access without signup","Agents that can settle payments on Base L2 in USDC","Use cases requiring low-cost per-request billing ($0.02)"],"notFor":["Users who need detailed documentation or guaranteed SLAs before integrating","High-volume use cases where subscription pricing would be cheaper","Developers without access to USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:49.71Z"},"updatedAt":"2026-04-23T18:03:21.259Z"}}