{"id":"6952b694-fae0-4065-b723-e6b3e5ccf109","shortId":"PAJWHd","kind":"x402","title":"x402-gated HR document endpoint on Base, pay-per-request with USDC.","tagline":"x402-gated HR document endpoint on Base, pay-per-request with USDC.","description":"This endpoint at lowpaymentfee.com serves a specific HR document resource (document ID 27) behind an x402 paywall. It is part of a broader platform that offers dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance, crypto, and utility services — all settled on the Base network using USDC.\n\nThe x402 challenge confirms the endpoint is live and accepts POST requests. The price is 20,000 base units of USDC (6 decimals), which equals $0.02 per request. Payment is made via the x402 \"exact\" scheme to a specified wallet address, with a 300-second timeout window. The platform advertises no API keys, no rate limits, and instant access — you simply attach an X-PAYMENT header with a valid x402 payment proof.\n\nThe specific content returned by `/api/v1/hr/documents/27` is not documented in the crawled material. The endpoint path suggests it returns a particular HR-related document, but no schema, sample response, or further documentation was found. The docs, pricing, API, and README pages all rendered only a \"Connect wallet\" prompt with no additional technical detail. Without knowing the response format or the nature of the document, this listing carries significant uncertainty about the actual payload.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","hr-document-retrieval","pay-per-request","no-api-key"],"categories":["data","documents"],"synonyms":["HR document API","pay-per-call document","x402 document endpoint","USDC API payment","Base network API","human resources document","lowpaymentfee"],"warnings":["No documentation found — docs, pricing, API, and README pages all show only 'Connect wallet' with no technical content.","The specific endpoint /api/v1/hr/documents/27 is not listed among the site's advertised APIs; its content and purpose are unknown.","No response schema or example response is available; the actual payload is entirely opaque.","The endpoint serves a single fixed document (ID 27); unclear if this is useful in isolation."],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/documents/27","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/hr/documents/27","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no documentation of what the endpoint actually returns, no response schema, no example payloads, and the docs pages are empty. The specific resource (/hr/documents/27) is not mentioned anywhere on the site's landing page, making it unclear what content is 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'0.02':106 '000':97 '20':96 '27':41 '300':124 '6':102 'Base network API' 'HR document API' 'USDC API payment' 'accept':90 'access':139 'actual':226 'addit':205 'address':121 'advertis':130 'ai/ml':66 'analyt':65 'api':61,132,192 'attach':142 'base':8,22,77,98 'base-network' 'behind':42 'broader':51 'call':60 'carri':221 'challeng':83 'confirm':84 'connect':200 'content':156 'crawl':165 'crypto':69 'data':64 'decim':103 'detail':207 'doc':190 'document':5,19,37,39,162,178,186,218 'dozen':55 'endpoint':6,20,30,62,86,168 'equal':105 'exact':115 'financ':68 'format':212 'found':188 'gate':3,17 'header':147 'hr':4,18,36,176 'hr-document-retrieval' 'hr-relat':175 'human resources document' 'id':40 'infer':67 'instant':138 'key':133 'know':209 'limit':136 'list':220 'live':88 'lowpaymentfee' 'lowpaymentfee.com':32 'made':111 'materi':166 'natur':215 'network':78 'no-api-key' 'offer':54 'page':195 'part':48 'particular':174 'path':169 'pay':10,24,58 'pay-per-cal':57 'pay-per-call document' 'pay-per-request':9,23 'payload':227 'payment':109,146,152 'paywal':45 'per':11,25,59,107 'platform':52,129 'post':91 'price':94,191 'prompt':202 'proof':153 'rate':135 'readm':194 'relat':177 'render':197 'request':12,26,92,108 'resourc':38 'respons':183,211 'return':157,172 'sampl':182 'schema':181 'scheme':116 'second':125 'serv':33 'servic':72 'settl':74 'signific':222 'simpli':141 'span':63 'specif':35,155 'specifi':119 'suggest':170 'technic':206 'timeout':126 'uncertainti':223 'unit':99 'usdc':14,28,80,101 'usdc-settlement' 'use':79 'util':71 'valid':150 'via':112 'wallet':120,201 'window':127 'without':208 'x':145 'x-payment':144 'x402':2,16,44,82,114,151 'x402 document endpoint' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"730987fe-e067-4119-86a0-27c262950714","listingId":"6952b694-fae0-4065-b723-e6b3e5ccf109","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/hr/documents/27","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.791Z"}],"sources":[{"listingId":"6952b694-fae0-4065-b723-e6b3e5ccf109","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/documents/27","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.791Z","lastSeenAt":"2026-04-23T16:08:14.582Z"}],"details":{"listingId":"6952b694-fae0-4065-b723-e6b3e5ccf109","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/27 \\\n  -H \"X-PAYMENT: <x402-payment-proof>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns HTTP 402 with an x402 challenge advertising USDC payment on Base network","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/27"},{"claim":"Price is 20,000 base units of USDC (USD Coin, 6 decimals) = $0.02 per request","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/27"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The site lists APIs across data/analytics, AI/ML, finance/web3, and infrastructure categories but does not list /api/v1/hr/documents/27","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving a specific HR document on demand with per-request USDC payment","Agent-driven document access without pre-registration or API keys","Programmatic procurement of gated content via x402 protocol"],"bestFor":["Agents that need on-demand document retrieval with crypto micropayments","Developers exploring x402 pay-per-call patterns on Base","Workflows requiring keyless, permissionless API access"],"notFor":["Users who need bulk HR document management or search across many documents","Anyone without a Base-network USDC wallet or x402-compatible client","Use cases requiring detailed documentation or guaranteed SLAs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.107Z"},"updatedAt":"2026-04-23T16:08:14.582Z"}}