{"id":"d3ef70b5-fcbb-4a6c-a56e-a41d3e323f63","shortId":"FabPRR","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 8) behind an x402 paywall. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with the \"exact\" payment scheme. The per-request cost is 20,000 base units of USDC, which at 6 decimals equals $0.02 USD.\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 minimum commitments. However, this specific listing is for the `/api/v1/hr/documents/8` resource, which appears to be an HR documents endpoint — a category not prominently featured on the landing page.\n\nDocumentation is extremely sparse. There is no OpenAPI spec, no request/response schema beyond the x402 challenge's outputSchema stub, and no examples of what the HR document payload looks like. The endpoint is confirmed live (402 challenge returned successfully), but the actual content and structure of the response after payment remain unknown.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","hr-documents","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 OpenAPI or schema documentation available for this endpoint","No request body or response body examples exist in the crawl material","The /api/v1/hr/documents/ path is not listed on the provider's landing page among advertised API categories","Actual content and structure of the HR document response are completely unknown"],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/documents/8","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/8","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, confirming pricing and payment details. However, there is no OpenAPI spec, no request body schema, no response examples, and no documentation for what the HR document resource actually contains. The listing is effectively a stub with only payment metadata 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'0.02':86,132 '000':76 '0x8335':62 '20':75 '2913':63 '402':207 '6':83 '8':40 'Base network API' 'HR document API' 'USDC micropayment API' 'accept':46 'actual':213 'advertis':92 'ai/ml':104 'analysi':106 'analyt':103 'api':100,137 'appear':156 'base':8,22,57,77 'behind':41 'beyond':184 'broader':89 'call':99 'categori':164 'challeng':187,208 'classif':108 'commit':145 'confirm':205 'content':214 'contract':61 'convers':125 'cost':73 'data':102 'decim':84 'document':5,19,36,38,161,172,198 'embed':109 'endpoint':6,20,30,128,162,203 'equal':85 'estim':119 'exact':66 'exampl':193 'exchang':114 'extrem':174 'featur':167 'feed':113 'financ':110 'gas':118 'gate':3,17 'generat':126 'geocod':123 'howev':146 'hr':4,18,35,160,197 'hr-documents' 'human resources document' 'id':39 'infrastructur':121 'json':51 'json-response' 'key':138 'land':170 'like':201 'limit':141 'list':130,149 'live':206 'look':200 'lowpaymentfee' 'lowpaymentfee.com':32,90 'minimum':144 'network':58 'openapi':179 'outputschema':189 'page':171 'pay':10,24,97 'pay-per-cal':96 'pay-per-call API' 'pay-per-request':9,23 'payload':199 'payment':52,67,221 'paywal':44 'per':11,25,71,98,133 'per-request':70 'platform':91 'post':47 'price':112 'promin':166 'quot':117 'rate':115,140 'remain':222 'request':12,26,48,72,134 'request/response':182 'resourc':37,154 'respons':219 'return':50,209 'schema':183 'scheme':68 'sentiment':105 'serv':33 'settl':54 'span':101 'spars':175 'spec':180 'specif':148 'structur':216 'stub':190 'success':210 'suit':94 'summar':107 'token':116 'unit':78 'unknown':223 'usd':87 'usdc':14,28,60,80 'usdc-base' 'use':59 'util':122 'valid':124 'web3':111 'x402':2,16,43,186 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"aed03a8c-6196-4f8b-a258-c1bebe790a5b","listingId":"d3ef70b5-fcbb-4a6c-a56e-a41d3e323f63","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/8","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.578Z"}],"sources":[{"listingId":"d3ef70b5-fcbb-4a6c-a56e-a41d3e323f63","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/documents/8","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.578Z","lastSeenAt":"2026-04-23T17:32:46.113Z"}],"details":{"listingId":"d3ef70b5-fcbb-4a6c-a56e-a41d3e323f63","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/8 \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\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 USDC base units on Base network","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/8"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/8"},{"claim":"Platform advertises $0.02 per request, no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving HR document data on a per-request payment basis","Agent-driven document access without API key provisioning","Programmatic access to HR records via crypto micropayments"],"bestFor":["Agents or services needing keyless, pay-per-call access to HR documents","Developers experimenting with x402 payment protocol integrations","Scenarios requiring no-commitment, no-rate-limit document retrieval"],"notFor":["Bulk document retrieval where per-request costs add up quickly","Use cases requiring well-documented schemas and response contracts","Production systems needing SLA guarantees or support"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.345Z"},"updatedAt":"2026-04-23T17:32:46.113Z"}}