{"id":"d0fc1f93-e15f-4036-9cc6-85e061f6e2bf","shortId":"2qpkkQ","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 48) behind an x402 payment wall. 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 via USDC on the Base network using the x402 protocol.\n\nThe specific endpoint `/api/v1/hr/documents/48` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (asset 0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). The platform's landing page confirms a flat $0.02/request pricing model across all endpoints, with no API keys, no rate limits, and no minimum commitments required.\n\nDocumentation is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what the HR document resource actually contains or what input parameters the POST body expects. The endpoint is confirmed live (returns a proper 402 challenge), but without documentation it is unclear what data is returned or what request body format is needed.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","hr-document-access","json-response"],"categories":["data"],"synonyms":["HR document API","human resources document","x402 API","pay-per-call API","USDC micropayment API","lowpaymentfee","Base network API"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content","No OpenAPI or schema describing request parameters or response format","Purpose of 'HR documents/48' resource is unknown — no description of what data is returned","No request body format documented; POST method required but input structure is unspecified"],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/documents/48","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/48","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is confirmed live with a valid x402 402 challenge and clear pricing ($0.02/request in USDC on Base). However, there is no documentation, no OpenAPI schema, no request/response examples, and no explanation of what the HR document resource actually contains or what POST body is expected. This is effectively a stub 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'/request':132 '0.02':116,131 '000':104 '0x8335':110 '20':103 '2913':111 '402':207 '48':40 '6':121 'Base network API' 'HR document API' 'USDC micropayment API' 'accept':89 'across':135 'actual':189 'advertis':98 'ai/ml':66 'analyt':65 'api':61,140,156 'asset':109 'base':8,22,79,105,113 'base-network' 'behind':41 'bodi':197,222 'broader':51 'call':60 'challeng':97,208 'commit':148 'confirm':128,202 'connect':165 'contain':190 'content':171 'cost':101 'crypto':69 'data':64,216 'decim':122 'descript':182 'doc':155 'document':5,19,36,38,150,187,211 'dozen':55 'endpoint':6,20,30,62,87,137,200 'equal':115 'exampl':179 'expect':198 'extrem':152 'financ':68 'flat':130 'format':223 'gate':3,17 'hr':4,18,35,186 'hr-document-access' 'human resources document' 'id':39 'infer':67 'input':193 'json':94 'json-response' 'key':141 'land':126 'limit':144 'live':203 'lowpaymentfee' 'lowpaymentfee.com':32 'maximum':100 'minimum':147 'model':134 'need':225 'network':80 'offer':54 'openapi':175 'page':127,160 'paramet':194 'part':48 'pay':10,24,58 'pay-per-cal':57 'pay-per-call API' 'pay-per-request':9,23 'payment':44 'per':11,25,59,117 'platform':52,124 'post':90,196 'price':133,157 'prompt':167 'proper':206 'protocol':84 'rate':143 'readm':159 'render':162 'request':12,26,91,118,221 'request/response':178 'requir':149 'resourc':37,188 'return':93,204,218 'schema':176 'serv':33 'servic':72 'settl':74 'span':63 'spars':153 'specif':86 'substant':170 'unclear':214 'unit':106 'usdc':14,28,76,108,119 'usdc-settlement' 'use':81,120 'util':71 'via':75 'wall':45 'wallet':166 'without':210 'x402':2,16,43,83,96 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"aedaeb61-8ac4-449f-a400-f46dfd39040b","listingId":"d0fc1f93-e15f-4036-9cc6-85e061f6e2bf","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/48","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.436Z"}],"sources":[{"listingId":"d0fc1f93-e15f-4036-9cc6-85e061f6e2bf","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/documents/48","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.436Z","lastSeenAt":"2026-04-23T19:02:14.016Z"}],"details":{"listingId":"d0fc1f93-e15f-4036-9cc6-85e061f6e2bf","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/48 \\\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":"Flat $0.02 per request pricing with no API keys, no rate limits, and no minimums","source_url":"https://lowpaymentfee.com"},{"claim":"x402 challenge returns maxAmountRequired of 20000 base units of USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/48"},{"claim":"Platform offers endpoints across data analytics, AI/ML, finance, crypto, and utility categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving HR document data programmatically via a single paid API call","Integrating pay-per-use document access into agent workflows without API key management","Accessing structured HR information settled on-chain via USDC on Base"],"bestFor":["Agents or developers needing on-demand HR document retrieval without subscription commitments","x402-compatible clients that can settle USDC payments on Base","Low-volume, pay-as-you-go document access"],"notFor":["Users who need detailed API documentation or request/response schemas before integrating","High-volume bulk document retrieval where per-request pricing becomes costly","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.496Z"},"updatedAt":"2026-04-23T19:02:14.016Z"}}