{"id":"f3583ce0-4fcd-410f-9af7-581a67e59353","shortId":"4JHdpY","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 `/api/v1/hr/reviews/30` is part of the lowpaymentfee.com platform, a collection of pay-per-request APIs settled via the x402 protocol on the Base network using USDC. The specific resource appears to serve HR review data (the path suggests a review record with ID 30), though no detailed documentation or response schema is available beyond the x402 challenge and the site's landing page.\n\nThe endpoint is live and returns a standard x402 payment challenge when called without payment. It accepts POST requests and charges $0.02 per call (20,000 base units of USDC with 6 decimals = $0.02), consistent with the uniform $0.02/request pricing advertised across all endpoints on the platform. Payment is made in USDC on Base to the specified payTo address, with a 300-second timeout. No API keys or rate limits are required — access is granted purely through on-chain micropayment.\n\nThe broader lowpaymentfee.com platform offers endpoints across several categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. However, this specific HR reviews endpoint is not listed on the site's landing page, and no documentation describes its request format or response schema. Buyers should be aware that the actual data returned and its quality are unverified.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","hr-data","reviews-api","no-api-key"],"categories":["data"],"synonyms":["HR reviews API","employee reviews","human resources data","pay-per-call API","x402 micropayment API","USDC API","Base network API"],"warnings":["No documentation or response schema available for this endpoint","This specific endpoint (/api/v1/hr/reviews/30) is not listed on the provider's landing page among advertised APIs","Request body format is unknown — no input schema provided","Actual data content and quality are unverified","The hardcoded ID '30' in the path suggests this may be a single fixed resource rather than a parameterized endpoint"],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/reviews/30","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/30","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, but there is no documentation, no request/response schema, and the HR reviews endpoint is not even listed on the provider's own landing page. The actual data returned is completely unknown, making this effectively a stub 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'pay-per-call API' 'pay-per-request':42 'payment':104,109,143 'payto':153 'per':9,23,44,117 'platform':38,142,180 'post':112 'price':135 'protocol':51 'pure':171 'qualiti':233 'rate':164 'record':72 'request':45,113,217 'requir':167 'resourc':60 'respons':81,220 'return':100,230 'review':2,16,65,71,201 'reviews-api' 'schema':82,221 'second':158 'serv':63 'settl':47 'sever':184 'site':91,208 'specif':59,199 'specifi':152 'standard':102 'suggest':69 'though':76 'timeout':159 'uniform':132 'unit':122 'unverifi':235 'usdc':14,28,57,124,147 'usdc-settlement' 'use':56 'util':196 'via':11,25,48 'web3':193 'without':108 'x402':12,26,50,87,103 'x402 micropayment API' 'x402-payment'","prices":[{"id":"142e5e7d-c5d8-4b2d-b864-8be53418b584","listingId":"f3583ce0-4fcd-410f-9af7-581a67e59353","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/30","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:20.046Z"}],"sources":[{"listingId":"f3583ce0-4fcd-410f-9af7-581a67e59353","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/reviews/30","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:20.046Z","lastSeenAt":"2026-04-23T16:08:14.917Z"}],"details":{"listingId":"f3583ce0-4fcd-410f-9af7-581a67e59353","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/reviews/30 \\\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 endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/30"},{"claim":"The platform advertises uniform $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/30"}],"useCases":["Retrieving HR review records programmatically with per-call payment","Integrating employee review data into agent workflows without API key management","Accessing on-demand HR data via crypto micropayments"],"bestFor":["Agents needing on-demand HR review data without subscription commitments","Developers experimenting with x402 pay-per-call patterns on Base","Low-volume or sporadic access to HR review records"],"notFor":["Production HR systems requiring documented schemas and SLAs","Bulk retrieval of large HR datasets (pay-per-call adds up)","Users who cannot transact in USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:09.71Z"},"updatedAt":"2026-04-23T16:08:14.917Z"}}