{"id":"0555b5c6-f67f-4b8e-a8b1-80c6cb647a57","shortId":"hwhSDx","kind":"x402","title":"Pay-per-call HR document endpoint on Base via x402 — $0.02 per request in USDC.","tagline":"Pay-per-call HR document endpoint on Base via x402 — $0.02 per request in USDC.","description":"This x402-enabled endpoint at `/api/v1/hr/documents/7` is part of the lowpaymentfee.com platform, which offers a broad catalog of pay-per-request APIs spanning data & analytics, AI/ML, finance, infrastructure, and more. Each call is settled on the Base network using USDC (USD Coin) at a flat rate of $0.02 per request. No API keys, rate limits, or subscriptions are required — payment is handled inline via the x402 protocol.\n\nThe specific resource `/api/v1/hr/documents/7` appears to serve an HR-related document (document ID 7). The endpoint accepts POST requests and returns `application/json`. Beyond the generic \"Premium API Access\" description provided by the x402 challenge, no further documentation exists for this particular route — the crawled site does not list HR document endpoints among its advertised categories, so the exact payload schema and response structure are unknown.\n\nThe platform advertises a uniform $0.02 price across all endpoints. The x402 challenge confirms a `maxAmountRequired` of 20000 base units of USDC (6 decimals), which equals $0.02. Payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base mainnet. The endpoint is live and returning a valid 402 challenge.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","hr-documents","json-response","no-api-key","post-method"],"categories":["data","hr"],"synonyms":["HR document API","human resources document","lowpaymentfee","pay per call API","x402 API","USDC micropayment API","Base network API","document retrieval"],"warnings":["No documentation exists for the /api/v1/hr/documents/ path — it is not listed among the provider's advertised API categories","Request body schema and response schema are entirely unknown","The endpoint serves a single document ID (7); unclear if other IDs exist or what the document contains","Crawled /api, /pricing, and /README pages returned only a 'Connect wallet' prompt with no useful content"],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/documents/7","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/7","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no documentation for the HR documents path, no request/response schema, and the crawled site doesn't even list this endpoint category. Effectively a stub with confirmed 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'0.02':12,28,82,173,194 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':200 '20000':185 '402':212 '6':190 '7':116 'Base network API' 'HR document API' 'USDC micropayment API' 'accept':119 'access':130 'across':175 'address':199 'advertis':156,170 'ai/ml':60 'among':154 'analyt':59 'api':56,86,129 'appear':106 'application/json':124 'base':9,25,71,186,202 'beyond':125 'broad':49 'call':4,20,66 'catalog':50 'categori':157 'challeng':136,180,213 'coin':76 'confirm':181 'crawl':146 'data':58 'decim':191 'descript':131 'document':6,22,113,114,139,152 'document retrieval' 'enabl':36 'endpoint':7,23,37,118,153,177,205 'equal':193 'exact':160 'exist':140 'financ':61 'flat':79 'generic':127 'handl':96 'hr':5,21,111,151 'hr-documents' 'hr-relat':110 'human resources document' 'id':115 'infrastructur':62 'inlin':97 'json-response' 'key':87 'limit':89 'list':150 'live':207 'lowpaymentfee' 'lowpaymentfee.com':44 'mainnet':203 'maxamountrequir':183 'network':72 'no-api-key' 'offer':47 'part':41 'particular':143 'pay':2,18,53 'pay per call API' 'pay-per-cal':1,17 'pay-per-request':52 'payload':161 'payment':94,195 'per':3,13,19,29,54,83 'platform':45,169 'post':120 'post-method' 'premium':128 'price':174 'protocol':101 'provid':132 'rate':80,88 'relat':112 'request':14,30,55,84,121 'requir':93 'resourc':104 'respons':164 'return':123,209 'rout':144 'schema':162 'sent':197 'serv':108 'settl':68 'site':147 'span':57 'specif':103 'structur':165 'subscript':91 'uniform':172 'unit':187 'unknown':167 'usd':75 'usdc':16,32,74,189 'usdc-base' 'use':73 'valid':211 'via':10,26,98 'x402':11,27,35,100,135,179 'x402 API' 'x402-enabled':34 'x402-payment'","prices":[{"id":"31ca8103-fc96-4289-87e4-ad28fca25298","listingId":"0555b5c6-f67f-4b8e-a8b1-80c6cb647a57","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/7","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.365Z"}],"sources":[{"listingId":"0555b5c6-f67f-4b8e-a8b1-80c6cb647a57","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/documents/7","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.365Z","lastSeenAt":"2026-04-23T19:02:13.944Z"}],"details":{"listingId":"0555b5c6-f67f-4b8e-a8b1-80c6cb647a57","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/7 \\\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 valid x402 402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/7"},{"claim":"The platform advertises $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/7"}],"useCases":["Retrieving HR-related documents programmatically with per-call payment","Integrating pay-as-you-go document access into agent workflows","Accessing structured HR data without subscription or API key management"],"bestFor":["Agents needing on-demand HR document access without credentials","Developers exploring x402 pay-per-call patterns on Base","Low-volume or sporadic document retrieval where subscriptions are wasteful"],"notFor":["High-volume bulk document retrieval (per-call cost adds up)","Users who need detailed API documentation or schema guarantees before integrating"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.67Z"},"updatedAt":"2026-04-23T19:02:13.944Z"}}