{"id":"55c4e0ba-7345-4f1c-aeaa-5d6522547e12","shortId":"6pCtCx","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 43) behind an x402 paywall. 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 gated via the x402 protocol on the Base network.\n\nThe specific endpoint `/api/v1/hr/documents/43` accepts POST requests and returns JSON. Payment is settled in USDC on Base (contract 0x8335…2913) using the \"exact\" scheme. The maximum amount required is 20,000 base units of USDC, which at 6 decimals equals $0.02 per request. The platform advertises uniform $0.02/request pricing across all endpoints, no API keys, no rate limits, and instant access.\n\nThe endpoint is live and returned a proper 402 challenge during probing. However, documentation is extremely thin — the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no explanation of what the HR document resource actually contains or what input the POST body expects. The endpoint path suggests it retrieves or processes a specific HR document, but the actual payload structure and response format are unknown.","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","x402 API","pay-per-call document","USDC micropayment API","lowpaymentfee","Base network API"],"warnings":["No API documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'","No OpenAPI or schema definition for request or response payloads","The purpose and content of '/api/v1/hr/documents/43' is unclear — 'HR documents' is not described anywhere on the site","The endpoint path references a specific document ID (43) with no explanation of what it contains","No request body schema documented; unclear what POST payload is expected"],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/documents/43","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/43","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge with clear pricing. However, there is no documentation, no OpenAPI spec, no request/response examples, and no explanation of what the HR document resource actually contains or what POST body is expected. The docs pages are empty beyond a wallet connect prompt. This is effectively a stub 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'/request':129 '0.02':121,128 '000':111 '0x8335':99 '20':110 '2913':100 '402':151 '43':40 '6':118 'Base network API' 'HR document API' 'USDC micropayment API' 'accept':85 'access':142 'across':131 'actual':197,220 'advertis':126 'ai/ml':64 'amount':107 'analyt':63 'api':59,135,163 'base':8,22,79,97,112 'base-network' 'behind':41 'bodi':204 'broader':50 'call':58 'challeng':152 'connect':171 'contain':198 'contract':98 'crypto':67 'data':62 'decim':119 'detail':178 'doc':161 'document':5,19,36,38,156,187,195,217 'dozen':53 'endpoint':6,20,30,60,83,133,144,207 'equal':120 'exact':103 'expect':205 'explan':190 'extrem':158 'financ':66 'format':225 'gate':3,17,72 'howev':155 'hr':4,18,35,194,216 'hr-document-access' 'human resources document' 'id':39 'infer':65 'input':201 'instant':141 'json':90 'json-response' 'key':136 'limit':139 'live':146 'lowpaymentfee' 'lowpaymentfee.com':32 'maximum':106 'network':80 'offer':52 'openapi':182 'page':166 'part':47 'path':208 'pay':10,24,56 'pay-per-cal':55 'pay-per-call document' 'pay-per-request':9,23 'payload':221 'payment':91 'paywal':44 'per':11,25,57,122 'platform':51,125 'post':86,203 'price':130,162 'probe':154 'process':213 'prompt':173 'proper':150 'protocol':76 'rate':138 'readm':165 'render':168 'request':12,26,87,123 'request/response':185 'requir':108 'resourc':37,196 'respons':224 'retriev':211 'return':89,148 'schema':186 'scheme':104 'serv':33 'servic':70 'settl':93 'span':61 'spec':183 'specif':82,215 'structur':222 'suggest':209 'technic':177 'thin':159 'uniform':127 'unit':113 'unknown':227 'usdc':14,28,95,115 'usdc-settlement' 'use':101 'util':69 'via':73 'wallet':172 'x402':2,16,43,75 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"35582230-203e-4a96-bf93-01c2ca69313e","listingId":"55c4e0ba-7345-4f1c-aeaa-5d6522547e12","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/43","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.809Z"}],"sources":[{"listingId":"55c4e0ba-7345-4f1c-aeaa-5d6522547e12","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/documents/43","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.809Z","lastSeenAt":"2026-04-23T16:08:14.623Z"}],"details":{"listingId":"55c4e0ba-7345-4f1c-aeaa-5d6522547e12","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/43 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","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, exact scheme, on Base network, with maxAmountRequired of 20000 base units of USDC","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/43"},{"claim":"The platform advertises $0.02/request pricing, no API keys, no rate limits, and instant access across all endpoints","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/43"},{"claim":"Docs, pricing, API, and README pages render only a 'Connect wallet' prompt with no technical content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving or processing HR document data via a single paid API call","Agent-driven document access with automatic crypto micropayment","Integrating pay-per-use document endpoints into automated workflows"],"bestFor":["Agents or applications needing on-demand HR document access without API key management","Developers exploring x402 pay-per-call patterns on Base","Low-volume, no-commitment document retrieval"],"notFor":["Users needing detailed API documentation or request/response schemas before integrating","High-volume bulk document retrieval where per-request pricing is inefficient","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.102Z"},"updatedAt":"2026-04-23T16:08:14.623Z"}}