{"id":"da17a772-1cb0-48ad-8ac0-e848196199fe","shortId":"bN9Uat","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 an HR document resource (document ID 46) behind an x402 paywall. It accepts POST requests and returns JSON content upon payment of $0.02 in USDC on the Base network. The endpoint is part of a broader platform (lowpaymentfee.com) that offers a variety of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per request with no API keys, no rate limits, and no commitments required.\n\nThe x402 challenge was successfully captured, confirming the endpoint is live. Payment is settled on-chain via USDC (contract 0x8335…2913) on Base to address 0x1A2B…85F3, using the \"exact\" scheme with a max amount of 20,000 base units (i.e., $0.02 given USDC's 6 decimals). The response MIME type is application/json. No OpenAPI schema, detailed documentation, or example responses were found for this specific endpoint, so the exact structure of the returned HR document is unknown. The broader site's /api, /pricing, and /README pages all resolve to a minimal \"Connect wallet\" prompt with no additional documentation.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","hr-document-access","json-response"],"categories":["data","documents"],"synonyms":["HR document API","human resources document","paid document endpoint","x402 document access","lowpaymentfee API","USDC pay-per-call","Base network API"],"warnings":["No documentation or schema available for the /api/v1/hr/documents/46 endpoint — the content and structure of the returned document are unknown.","The site's /api, /pricing, and /README pages contain no useful information beyond 'Connect wallet'.","The purpose and content of 'HR document 46' is unclear; it may be placeholder or demo content.","No OpenAPI spec or ai-plugin manifest was found."],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/documents/46","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/46","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no documentation for this specific HR document endpoint, no example request/response bodies, and the broader site pages are empty beyond a wallet-connect prompt. The nature of the \"HR document\" content is entirely 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'/pricing':193 '/readme':195 '0.02':56,95,151 '000':147 '0x1a2b':135 '0x8335':129 '20':146 '2913':130 '46':40 '6':155 '85f3':136 'Base network API' 'HR document API' 'USDC pay-per-call' 'accept':46 'addit':207 'address':134 'ai/ml':85 'amount':144 'analyt':84 'api':81,100 'application/json':162 'base':8,22,61,132,148 'base-network' 'behind':41 'broader':69,189 'call':80 'captur':114 'chain':125 'challeng':111 'commit':107 'confirm':115 'connect':202 'content':52 'contract':128 'crypto':88 'data':83 'decim':156 'detail':166 'document':5,19,36,38,167,185,208 'endpoint':6,20,30,64,117,176 'exact':139,179 'exampl':169 'financ':87 'found':172 'gate':3,17 'given':152 'hr':4,18,35,184 'hr-document-access' 'human resources document' 'i.e':150 'id':39 'infer':86 'json':51 'json-response' 'key':101 'limit':104 'live':119 'lowpaymentfee API' 'lowpaymentfee.com':32,71 'max':143 'mime':159 'minim':201 'network':62 'offer':73 'on-chain':123 'openapi':164 'page':196 'paid document endpoint' 'part':66 'pay':10,24,78 'pay-per-cal':77 'pay-per-request':9,23 'payment':54,120 'paywal':44 'per':11,25,79,96 'platform':70 'post':47 'price':93 'prompt':204 'rate':103 'request':12,26,48,97 'requir':108 'resolv':198 'resourc':37 'respons':158,170 'return':50,183 'schema':165 'scheme':140 'serv':33 'servic':91 'settl':122 'site':190 'span':82 'specif':175 'structur':180 'success':113 'type':160 'unit':149 'unknown':187 'upon':53 'usdc':14,28,58,127,153 'usdc-settlement' 'use':137 'util':90 'varieti':75 'via':126 'wallet':203 'x402':2,16,43,110 'x402 document access' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"0ef359fc-4481-4a1f-a30f-fa107124ab00","listingId":"da17a772-1cb0-48ad-8ac0-e848196199fe","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/46","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.493Z"}],"sources":[{"listingId":"da17a772-1cb0-48ad-8ac0-e848196199fe","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/documents/46","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.493Z","lastSeenAt":"2026-04-23T19:02:14.081Z"}],"details":{"listingId":"da17a772-1cb0-48ad-8ac0-e848196199fe","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/46 \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\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 a 402 challenge with x402Version 1, accepting USDC on Base with maxAmountRequired of 20000 base units ($0.02).","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/46"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on the Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/46"}],"useCases":["Retrieving a specific HR document (ID 46) programmatically via a paid API call","Integrating pay-per-request document access into agent workflows without API key management","Demonstrating x402 payment protocol usage for gated content"],"bestFor":["Agents or applications that need on-demand access to gated HR documents","Developers exploring x402 payment-gated API patterns on Base","Use cases requiring keyless, pay-as-you-go document retrieval"],"notFor":["Bulk document retrieval or batch processing (single-document endpoint)","Users who need detailed schema documentation or guaranteed SLAs","Applications requiring non-crypto payment methods"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.46Z"},"updatedAt":"2026-04-23T19:02:14.081Z"}}