{"id":"456f792e-7465-4ad8-b22b-ca6a80e801c7","shortId":"TFUSrE","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 36) behind an x402 paywall. It accepts POST requests and returns JSON content upon payment of up to $0.02 in USDC on the Base network. The payment is settled on-chain to a specified wallet address using the \"exact\" x402 scheme.\n\nThe broader lowpaymentfee.com platform advertises a suite of pay-per-call APIs spanning data & analytics, AI/ML (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request with no API keys, no rate limits, and no commitments required — just an x402-compatible payment header.\n\nHowever, the specific endpoint being listed here (/api/v1/hr/documents/36) is not mentioned on the provider's landing page among the advertised API categories. It appears to be an HR-domain document retrieval endpoint. No OpenAPI schema, request/response examples, or detailed documentation were found for this or any other endpoint on the site. The crawled /api, /pricing, and /README pages all returned only a \"Connect wallet\" prompt with no substantive content.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","document-retrieval","hr-documents","json-response"],"categories":["data","documents"],"synonyms":["HR document API","pay-per-call document access","x402 document endpoint","USDC micropayment API","Base network API","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available for this endpoint","The /api/v1/hr/documents/36 path is not listed among the provider's advertised APIs on the landing page","All documentation pages (/api, /pricing, /README) returned only a 'Connect wallet' prompt with no content","Unknown what data this HR document endpoint actually returns — no response examples available","Provider site appears to be a generic x402 demo platform; reliability and data authenticity are unverified"],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/documents/36","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/36","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (returns a valid 402 x402 challenge) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, no documentation beyond a landing page listing, and the specific /hr/documents/36 path is not even listed among the provider's advertised APIs. Effectively a stub 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'/api/v1/hr/documents/36':154 '/pricing':202 '/readme':204 '0.02':58,126 '36':40 'Base network API' 'HR document API' 'USDC micropayment API' 'accept':46 'address':76 'advertis':86,166 'ai/ml':98 'among':164 'analysi':100 'analyt':97 'api':94,131,167 'appear':170 'base':8,22,63 'behind':41 'broader':83 'call':93 'categori':168 'chain':71 'classif':102 'commit':138 'compat':144 'connect':210 'content':52,216 'convers':119 'crawl':200 'data':96 'detail':186 'document':5,19,36,38,177,187 'document-retrieval' 'domain':176 'embed':103 'endpoint':6,20,30,122,150,179,195 'estim':113 'exact':79 'exampl':184 'exchang':108 'feed':107 'financ':104 'found':189 'gas':112 'gate':3,17 'generat':120 'geocod':117 'header':146 'howev':147 'hr':4,18,35,175 'hr-documents' 'hr-domain':174 'id':39 'infrastructur':115 'json':51 'json-response' 'key':132 'land':162 'limit':135 'list':124,152 'lowpaymentfee' 'lowpaymentfee.com':32,84 'mention':157 'network':64 'on-chain':69 'openapi':181 'page':163,205 'pay':10,24,91 'pay-per-cal':90 'pay-per-call document access' 'pay-per-request':9,23 'payment':54,66,145 'paywal':44 'per':11,25,92,127 'platform':85 'post':47 'price':106 'prompt':212 'provid':160 'quot':111 'rate':109,134 'request':12,26,48,128 'request/response':183 'requir':139 'resourc':37 'retriev':178 'return':50,207 'schema':182 'scheme':81 'sentiment':99 'serv':33 'settl':68 'site':198 'span':95 'specif':149 'specifi':74 'substant':215 'suit':88 'summar':101 'token':110 'upon':53 'usdc':14,28,60 'usdc-base' 'use':77 'util':116 'valid':118 'wallet':75,211 'web3':105 'x402':2,16,43,80,143 'x402 document endpoint' 'x402-compatible':142 'x402-gated':1,15 'x402-payment'","prices":[{"id":"776b32c2-0ea3-4cc8-a213-17327f989935","listingId":"456f792e-7465-4ad8-b22b-ca6a80e801c7","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/36","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.674Z"}],"sources":[{"listingId":"456f792e-7465-4ad8-b22b-ca6a80e801c7","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/documents/36","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.674Z","lastSeenAt":"2026-04-23T17:32:46.246Z"}],"details":{"listingId":"456f792e-7465-4ad8-b22b-ca6a80e801c7","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/36 \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\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 with maxAmountRequired of 20000 base units (USDC, 6 decimals = $0.02) on Base network","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/36"},{"claim":"The provider lists all APIs at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Base","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving HR document data on demand with per-request USDC payment","Agent-driven document access without API key provisioning","Programmatic access to structured HR records via x402 protocol"],"bestFor":["Agents that need keyless, pay-per-use document retrieval","Developers experimenting with x402 payment protocol on Base","Scenarios requiring on-chain payment audit trails for document access"],"notFor":["Bulk document retrieval where per-request fees add up quickly","Use cases requiring detailed API documentation or guaranteed SLAs","Non-crypto workflows that cannot settle USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.201Z"},"updatedAt":"2026-04-23T17:32:46.246Z"}}