{"id":"f7d84b6a-17dc-490e-82f2-bc737b34f553","shortId":"LFd9YK","kind":"x402","title":"Pay-per-call HR reviews endpoint on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call HR reviews endpoint on Base via x402, settled in USDC at $0.02/request.","description":"This x402-enabled endpoint at lowpaymentfee.com provides access to an HR reviews resource (specifically review ID 8) via a POST request. Payment is settled on the Base network using USDC (contract 0x8335…2913) through the x402 exact-payment scheme. Each call costs a maximum of 20,000 base units of USDC, which equals $0.02 (two US cents) given USDC's 6 decimal places.\n\nThe provider lowpaymentfee.com hosts a broad catalog 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 advertised at the same $0.02/request price point with no API keys, no rate limits, and no minimum commitments required.\n\nThe specific endpoint `/api/v1/hr/reviews/8` is not listed on the provider's landing page among the advertised API categories, and no documentation describes the request body schema or response format for HR review endpoints. The endpoint is confirmed live (returns a valid 402 x402 challenge), but the actual data returned after payment is unknown. The docs, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional content.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","hr-reviews","pay-per-call","no-api-key","post-method"],"categories":["data","hr"],"synonyms":["HR review API","employee review data","human resources reviews","x402 paid API","USDC micropayment API","Base network API","lowpaymentfee"],"warnings":["The /api/v1/hr/reviews/8 endpoint is not listed on the provider's landing page among advertised APIs — its purpose and data content are unverified.","No request body schema or response schema is documented anywhere in the crawled material.","All documentation pages (docs, pricing, README, api) render only 'Connect wallet' with no usable content.","The endpoint targets a single hardcoded review ID (8); it is unclear whether other review IDs are available or how to discover them."],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/reviews/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/reviews/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 402 challenge, but there is no documentation for the HR reviews resource, no request/response schema, and the endpoint is not listed among the provider's advertised APIs. Docs pages are empty beyond a wallet connect prompt. Effectively a stub with confirmed 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'/request':17,34,147 '0.02':16,33,90,146 '000':83 '0x8335':67 '20':82 '2913':68 '402':203 '6':97 '8':52 'Base network API' 'HR review API' 'USDC micropayment API' 'access':43 'actual':208 'addit':230 'advertis':142,177 'ai/ml':116 'among':175 'analysi':118 'analyt':115 'api':112,152,178 'base':9,26,62,84 'base-network' 'bodi':186 'broad':105 'call':4,21,77,111 'catalog':106 'categori':179 'cent':93 'challeng':205 'classif':120 'commit':160 'confirm':198 'connect':225 'content':231 'contract':66 'convers':137 'cost':78 'data':114,209 'decim':98 'describ':183 'doc':216 'document':182 'embed':121 'employee review data' 'enabl':38 'endpoint':7,24,39,140,164,194,196 'equal':89 'estim':131 'exact':73 'exact-pay':72 'exchang':126 'feed':125 'financ':122 'format':190 'gas':130 'generat':138 'geocod':135 'given':94 'host':103 'hr':5,22,46,192 'hr-reviews' 'human resources reviews' 'id':51 'infrastructur':133 'key':153 'land':173 'limit':156 'list':168 'live':199 'lowpaymentfee' 'lowpaymentfee.com':41,102 'maximum':80 'minimum':159 'network':63 'no-api-key' 'page':174,220 'pay':2,19,109 'pay-per-cal':1,18,108 'pay-per-call' 'payment':57,74,212 'per':3,20,110 'place':99 'point':149 'post':55 'post-method' 'price':124,148,217 'prompt':227 'provid':42,101,171 'quot':129 'rate':127,155 'readm':219 'render':222 'request':56,185 'requir':161 'resourc':48 'respons':189 'return':200,210 'review':6,23,47,50,193 'schema':187 'scheme':75 'sentiment':117 'settl':12,29,59 'span':113 'specif':49,163 'summar':119 'token':128 'two':91 'unit':85 'unknown':214 'us':92 'usdc':14,31,65,87,95 'usdc-settlement' 'use':64 'util':134 'valid':136,202 'via':10,27,53 'wallet':226 'web3':123 'x402':11,28,37,71,204 'x402 paid API' 'x402-enabled':36 'x402-payment'","prices":[{"id":"6f378fd9-b0b4-4dff-a045-13dc1f61eacb","listingId":"f7d84b6a-17dc-490e-82f2-bc737b34f553","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/reviews/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":"2026-04-21T18:32:19.962Z"}],"sources":[{"listingId":"f7d84b6a-17dc-490e-82f2-bc737b34f553","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/reviews/8","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.962Z","lastSeenAt":"2026-04-23T16:08:14.769Z"}],"details":{"listingId":"f7d84b6a-17dc-490e-82f2-bc737b34f553","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/reviews/8 \\\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 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/8"},{"claim":"USDC contract address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/8"},{"claim":"All endpoints advertised at $0.02/request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The provider lists APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories but does not list HR review endpoints","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving HR review data for a specific review record via programmatic pay-per-call access","Integrating employee review information into automated HR workflows","Agent-driven data retrieval where no API key provisioning is desired"],"bestFor":["Agents needing on-demand HR review data without subscription overhead","Developers who want keyless, pay-as-you-go API access settled in USDC on Base","Scenarios requiring low-cost single-request data retrieval"],"notFor":["Bulk HR data exports or high-volume batch processing (no documented batch endpoints)","Users who need detailed API documentation or guaranteed response schemas before purchasing","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:09.855Z"},"updatedAt":"2026-04-23T16:08:14.769Z"}}