{"id":"75f3dd0c-e45a-466b-ae2e-abab4b98d89a","shortId":"UTqVtV","kind":"x402","title":"HR reviews data endpoint on Base, pay-per-call via x402 with USDC at $0.02/request.","tagline":"HR reviews data endpoint on Base, pay-per-call via x402 with USDC at $0.02/request.","description":"This x402-enabled endpoint at lowpaymentfee.com serves HR review data (specifically review ID 1) via a POST request, settling payments in USDC on the Base network. The endpoint is live and returns a standard x402 payment challenge (HTTP 402) when called without payment.\n\nThe provider, lowpaymentfee.com, hosts a broad catalog of pay-per-request APIs spanning data & analytics, AI/ML (sentiment, 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 $0.02 per request with no API keys, no rate limits, and no minimum commitments. Payment is made via the x402 protocol using USDC on the Base L2 network.\n\nThe specific endpoint `/api/v1/hr/reviews/1` is not listed on the provider's landing page among the advertised API categories, which suggests it may be an unlisted or less-promoted route. The x402 challenge confirms a maxAmountRequired of 20000 base units of USDC (6 decimals), equaling $0.02 per call, consistent with the site-wide pricing. No OpenAPI schema, detailed documentation, or example responses are available for this endpoint, so the exact shape of the returned HR review data is unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","hr-data","pay-per-request","no-api-key","post-method"],"categories":["data"],"synonyms":["HR reviews API","employee review data","human resources API","x402 paid API","USDC micropayment API","lowpaymentfee","pay-per-call data"],"warnings":["Endpoint /api/v1/hr/reviews/1 is not listed among the provider's advertised APIs on the landing page","No OpenAPI spec, request schema, or response schema available","No documentation describing what HR review data is returned or what input the POST body expects","Provider's /api, /pricing, and /README pages all returned only a 'Connect wallet' prompt with no useful content"],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/reviews/1","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/1","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no documentation for this specific HR reviews route, no example request/response, and the endpoint is not even listed on the provider's own landing page. Effectively a stub with verified 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'pay':8,25,88 'pay-per-cal':7,24 'pay-per-call data' 'pay-per-request':87 'payment':55,71,78,136 'per':9,26,89,123,196 'post':52 'post-method' 'price':102,204 'promot':178 'protocol':142 'provid':80,159 'quot':107 'rate':105,130 'request':53,90,124 'respons':212 'return':67,224 'review':2,19,44,47,226 'rout':179 'schema':207 'sentiment':96 'serv':42 'settl':54 'shape':221 'site':202 'site-wid':201 'span':92 'specif':46,151 'standard':69 'suggest':169 'summar':97 'token':106 'unit':189 'unknown':229 'unlist':174 'usdc':14,31,57,144,191 'usdc-settlement' 'use':143 'util':112 'valid':114 'via':11,28,50,139 'web3':101 'wide':203 'without':77 'x402':12,29,37,70,141,181 'x402 paid API' 'x402-enabled':36 'x402-payment'","prices":[{"id":"d559ce8a-f5d2-4d3d-910e-24be97e83ac6","listingId":"75f3dd0c-e45a-466b-ae2e-abab4b98d89a","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/1","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.342Z"}],"sources":[{"listingId":"75f3dd0c-e45a-466b-ae2e-abab4b98d89a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/reviews/1","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.342Z","lastSeenAt":"2026-04-23T20:33:36.663Z"}],"details":{"listingId":"75f3dd0c-e45a-466b-ae2e-abab4b98d89a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/reviews/1 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The x402 challenge returns maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/1"},{"claim":"All endpoints are priced 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 provider lists APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving HR review data programmatically with per-call payment","Integrating employee review information into HR dashboards","Agent-driven data retrieval with automatic USDC micropayments"],"bestFor":["Developers needing on-demand HR review data without subscription commitments","AI agents that can settle x402 payments autonomously on Base","Projects requiring low-cost, keyless API access to structured data"],"notFor":["Bulk HR data exports requiring thousands of records at once (no documented batch endpoint)","Users who cannot transact in USDC on the Base network","Applications needing detailed API documentation or guaranteed SLAs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.704Z"},"updatedAt":"2026-04-23T20:33:36.663Z"}}