{"id":"56183273-3861-4d77-876a-8a508a6a1951","shortId":"kgM8Dw","kind":"x402","title":"HR reviews data endpoint on Base, pay-per-call via x402 with USDC.","tagline":"HR reviews data endpoint on Base, pay-per-call via x402 with USDC.","description":"This endpoint at lowpaymentfee.com provides access to HR review data (specifically resource ID 12) via the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of $0.02 per request (20,000 base units at 6 decimals).\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 required.\n\nThe specific endpoint `/api/v1/hr/reviews/12` is not listed on the provider's landing page among the advertised API categories, making its exact data content unclear. It appears to serve HR-related review data, but no schema, sample response, or documentation is available beyond the x402 challenge. The endpoint is confirmed live, returning a proper 402 challenge when called without payment.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-call","hr-data","json-response","no-api-key"],"categories":["data"],"synonyms":["HR reviews API","employee reviews","human resources data","x402 API","pay-per-request API","Base USDC endpoint","lowpaymentfee"],"warnings":["Endpoint /api/v1/hr/reviews/12 is not listed among the provider's advertised APIs on the landing page","No response schema, example responses, or API documentation available","No OpenAPI spec or ai-plugin manifest found","Exact nature and structure of HR review data is unknown — purchase required to discover"],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/reviews/12","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/12","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 402 challenge, but there is no documentation, no response schema, no example payloads, and the specific HR reviews endpoint is not even listed on the provider's own landing page. The actual data returned is 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'0.02':72,126 '000':76 '0x8335':65 '12':42 '20':75 '2913':66 '402':195 '6':80 'Base USDC endpoint' 'HR reviews API' 'accept':49 'access':34 'advertis':86,156 'ai/ml':98 'among':154 'analysi':100 'analyt':97 'api':94,131,157 'appear':166 'avail':182 'base':6,20,60,77 'beyond':183 'broader':83 'call':10,24,93,198 'categori':158 'challeng':186,196 'classif':102 'commit':139 'confirm':190 'content':163 'contract':64 'convers':119 'cost':70 'data':3,17,38,96,162,173 'decim':81 'document':180 'embed':103 'employee reviews' 'endpoint':4,18,30,122,143,188 'estim':113 'exact':161 'exchang':108 'feed':107 'financ':104 'gas':112 'generat':120 'geocod':117 'hr':1,15,36,170 'hr-data' 'hr-relat':169 'human resources data' 'id':41 'infrastructur':115 'json':54 'json-response' 'key':132 'land':152 'limit':135 'list':124,147 'live':191 'lowpaymentfee' 'lowpaymentfee.com':32,84 'make':159 'maximum':69 'minimum':138 'network':61 'no-api-key' 'page':153 'pay':8,22,91 'pay-per-cal':7,21,90 'pay-per-call' 'pay-per-request API' 'payment':46,55,200 'per':9,23,73,92,127 'platform':85 'post':50 'price':106 'proper':194 'protocol':47 'provid':33,150 'quot':111 'rate':109,134 'relat':171 'request':51,74,128 'requir':140 'resourc':40 'respons':178 'return':53,192 'review':2,16,37,172 'sampl':177 'schema':176 'sentiment':99 'serv':168 'settl':57 'span':95 'specif':39,142 'suit':88 'summar':101 'token':110 'unclear':164 'unit':78 'usdc':14,28,63 'usdc-base' 'use':62 'util':116 'valid':118 'via':11,25,43 'web3':105 'without':199 'x402':12,26,45,185 'x402 API' 'x402-payment'","prices":[{"id":"b1e55f67-f18f-4b04-ac66-3fe616ecd1ff","listingId":"56183273-3861-4d77-876a-8a508a6a1951","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/12","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.523Z"}],"sources":[{"listingId":"56183273-3861-4d77-876a-8a508a6a1951","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/reviews/12","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.523Z","lastSeenAt":"2026-04-23T19:32:43.425Z"}],"details":{"listingId":"56183273-3861-4d77-876a-8a508a6a1951","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/reviews/12 \\\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 in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/12"},{"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 is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/12"}],"useCases":["Retrieving HR review data for a specific resource on demand","Integrating pay-per-call HR data into agent workflows","Accessing structured review information without subscription or API key"],"bestFor":["Agents needing on-demand HR review data with crypto micropayments","Developers testing x402 payment flows on Base","Use cases requiring keyless, commitment-free API access"],"notFor":["Bulk HR data retrieval (no documented batch endpoints)","Users who cannot pay with USDC on Base network","Anyone needing detailed API documentation or response schemas before purchasing"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.385Z"},"updatedAt":"2026-04-23T19:32:43.425Z"}}