{"id":"8cc99c45-dcd5-4e5d-94e7-374541fdfa81","shortId":"4vw38M","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 32) 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 specific endpoint `/api/v1/hr/documents/32` 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, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no description of what the HR document endpoint actually returns. The endpoint is live (returns a valid x402 402 challenge), but without documentation it is unclear what input the POST body should contain or what shape the response takes.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","hr-document-retrieval","json-response"],"categories":["data","documents"],"synonyms":["HR document API","human resources document","paid document access","x402 API","lowpaymentfee","USDC micropayment API","Base network API"],"warnings":["No API documentation available — /docs, /pricing, /api, and /README all return only a 'Connect wallet' prompt","No request body schema or response schema documented for this endpoint","The purpose and content of 'HR document 32' is entirely undocumented","No OpenAPI or ai-plugin manifest found"],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/documents/32","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/32","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 ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no indication of what the HR document endpoint actually returns. The listing is effectively a 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'/api/v1/hr/documents/32':83 '/docs':150 '/pricing':151 '/readme':154 '/request':127 '0.02':111,126 '000':99 '0x8335':105 '20':98 '2913':106 '32':40 '402':195 '6':116 'Base network API' 'HR document API' 'USDC micropayment API' 'accept':84 'across':130 'actual':185 'advertis':93 'ai/ml':65 'analyt':64 'api':60,135 'asset':104 'base':8,22,76,100,108 'base-network' 'behind':41 'bodi':207 'broader':50 'call':59 'challeng':92,196 'commit':143 'confirm':123 'connect':160 'contain':209 'content':166 'cost':96 'crypto':68 'data':63 'decim':117 'descript':178 'document':5,19,36,38,145,175,183,199 'dozen':54 'endpoint':6,20,30,61,82,132,184,188 'equal':110 'extrem':147 'financ':67 'flat':125 'gate':3,17 'hr':4,18,35,182 'hr-document-retrieval' 'human resources document' 'id':39 'infer':66 'input':204 'json':89 'json-response' 'key':136 'land':121 'limit':139 'live':190 'lowpaymentfee' 'lowpaymentfee.com':32 'maximum':95 'minimum':142 'model':129 'network':77 'offer':53 'openapi':170 'page':122,155 'paid document access' 'part':47 'pay':10,24,57 'pay-per-cal':56 'pay-per-request':9,23 'paywal':44 'per':11,25,58,112 'platform':51,119 'post':85,206 'price':128 'prompt':162 'rate':138 'render':157 'request':12,26,86,113 'request/response':173 'requir':144 'resourc':37 'respons':214 'return':88,186,191 'schema':174 'serv':33 'servic':71 'settl':73 'shape':212 'span':62 'spars':148 'spec':171 'specif':81 'take':215 'unclear':202 'unit':101 'usdc':14,28,79,103,114 'usdc-settlement' 'use':78,115 'util':70 'valid':193 'wallet':161 'without':198 'x402':2,16,43,91,194 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"52939152-2466-4b4b-911f-818784071a18","listingId":"8cc99c45-dcd5-4e5d-94e7-374541fdfa81","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/32","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.427Z"}],"sources":[{"listingId":"8cc99c45-dcd5-4e5d-94e7-374541fdfa81","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/documents/32","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.427Z","lastSeenAt":"2026-04-23T19:02:14.016Z"}],"details":{"listingId":"8cc99c45-dcd5-4e5d-94e7-374541fdfa81","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/32 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/32"},{"claim":"The platform advertises $0.02 per request flat pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/32"}],"useCases":["Retrieving HR document data via a single micropayment","Programmatic access to document #32 from an agent workflow","Demonstrating x402 pay-per-call document retrieval"],"bestFor":["Agents that need on-demand document access without API key provisioning","Developers experimenting with x402 payment protocol on Base","Low-volume, pay-as-you-go document retrieval"],"notFor":["Bulk document retrieval at scale (no documented batch endpoints)","Users who need detailed API documentation or schemas before integrating","Non-crypto users who cannot settle payments in USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.582Z"},"updatedAt":"2026-04-23T19:02:14.016Z"}}