{"id":"902f14e5-69d4-4683-96bf-331cc2c1ebcc","shortId":"Sp8BaT","kind":"x402","title":"x402-gated HR document endpoint on Base, pay-per-request with USDC at $0.02.","tagline":"x402-gated HR document endpoint on Base, pay-per-request with USDC at $0.02.","description":"This endpoint at lowpaymentfee.com serves an HR document resource (document ID 41) behind an x402 payment wall. It is part of a broader platform offering dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per request and settled in USDC on the Base network.\n\nThe specific resource `/api/v1/hr/documents/41` accepts POST requests and returns JSON. The x402 challenge confirms the endpoint is live, requiring an exact payment of 20,000 base units of USDC (0x8335…2913 on Base, 6 decimals → $0.02) per call. No API keys are needed; authentication and authorization are handled entirely through the x402 payment header. The platform advertises no rate limits and instant access.\n\nBecause this particular endpoint falls under an \"HR documents\" path that is not listed on the provider's public landing page (which showcases analytics, AI, finance, and utility APIs), the exact content and schema of the response are unknown. The landing page confirms the uniform $0.02 pricing and Base-network settlement model. No OpenAPI spec, detailed documentation, or example responses were found during the crawl.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","hr-document-retrieval","pay-per-request","no-api-key","json-response"],"categories":["data","documents"],"synonyms":["HR document API","human resources document","paid document endpoint","x402 document access","USDC API","Base network API","lowpaymentfee"],"warnings":["The path /api/v1/hr/documents/41 is not listed among the provider's publicly advertised endpoints — it may be unlisted, experimental, or a placeholder.","No OpenAPI spec, response schema, or example payloads are available; the response format is unknown.","No documentation pages were accessible (pricing, README, and /api pages all returned only a 'Connect wallet' prompt).","The nature of the 'HR document' content is unclear — it could contain sensitive or regulated information."],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/documents/41","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/41","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 x402 402 challenge, and pricing is clear ($0.02 USDC on Base). However, this specific HR documents path is not listed on the provider's public site, no OpenAPI schema or documentation exists, and no example request/response bodies are available. The actual content returned is entirely 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'0.02':16,32,79,125,198 '000':114 '0x8335':119 '20':113 '2913':120 '41':44 '6':123 'Base network API' 'HR document API' 'USDC API' 'accept':94 'access':152 'advertis':146 'ai':177 'ai/ml':69 'analyt':68,176 'api':64,129,181 'authent':133 'author':135 'base':8,24,88,115,122,202 'base-network':201 'behind':45 'broader':55 'call':63,127 'challeng':102 'confirm':103,195 'content':184 'crawl':218 'crypto':72 'data':67 'decim':124 'detail':209 'document':5,21,40,42,161,210 'dozen':58 'endpoint':6,22,34,65,105,156 'entir':138 'exact':110,183 'exampl':212 'fall':157 'financ':71,178 'found':215 'gate':3,19 'handl':137 'header':143 'hr':4,20,39,160 'hr-document-retrieval' 'human resources document' 'id':43 'infer':70 'instant':151 'json':99 'json-response' 'key':130 'land':172,193 'limit':149 'list':166 'live':107 'lowpaymentfee' 'lowpaymentfee.com':36 'model':205 'need':132 'network':89,203 'no-api-key' 'offer':57 'openapi':207 'page':173,194 'paid document endpoint' 'part':52 'particular':155 'path':162 'pay':10,26,61 'pay-per-cal':60 'pay-per-request':9,25 'payment':48,111,142 'per':11,27,62,80,126 'platform':56,145 'post':95 'price':77,199 'provid':169 'public':171 'rate':148 'request':12,28,81,96 'requir':108 'resourc':41,92 'respons':189,213 'return':98 'schema':186 'serv':37 'servic':75 'settl':83 'settlement':204 'showcas':175 'span':66 'spec':208 'specif':91 'uniform':197 'unit':116 'unknown':191 'usdc':14,30,85,118 'usdc-settlement' 'util':74,180 'wall':49 'x402':2,18,47,101,141 'x402 document access' 'x402-gated':1,17 'x402-payment'","prices":[{"id":"5fb09993-88ae-4840-8f6a-270f6c640a4e","listingId":"902f14e5-69d4-4683-96bf-331cc2c1ebcc","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/41","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.552Z"}],"sources":[{"listingId":"902f14e5-69d4-4683-96bf-331cc2c1ebcc","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/documents/41","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.552Z","lastSeenAt":"2026-04-23T17:32:46.095Z"}],"details":{"listingId":"902f14e5-69d4-4683-96bf-331cc2c1ebcc","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/41 \\\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 x402 challenge requiring 20,000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/41"},{"claim":"USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/41"},{"claim":"Platform pricing is $0.02 per request with no API keys, no rate limits, and Base network settlement","source_url":"https://lowpaymentfee.com"},{"claim":"The provider lists analytics, AI/ML, finance, crypto, and utility endpoints but not HR document endpoints on its landing page","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving a specific HR document (ID 41) programmatically via a pay-per-call model","Integrating low-cost document access into agent workflows without managing API keys","Demonstrating x402 payment-gated content delivery on Base"],"bestFor":["Agents or services that need on-demand access to gated documents without subscription overhead","Developers experimenting with x402 payment protocol integrations","Workflows requiring micropayment-authenticated document retrieval"],"notFor":["Bulk document retrieval at scale (no batch endpoint documented)","Users who need detailed schema guarantees or SLA commitments (no docs available)","Anyone needing non-USDC or non-Base-network payment options"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.435Z"},"updatedAt":"2026-04-23T17:32:46.095Z"}}