{"id":"af2040ab-1919-4f55-819f-9ca8486650bd","shortId":"dHJ9vA","kind":"x402","title":"Pay-per-call HR reviews endpoint on Base via x402, settling in USDC at $0.02/request.","tagline":"Pay-per-call HR reviews endpoint on Base via x402, settling in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides access to an HR reviews resource (specifically review ID 40) via the x402 payment protocol. It is part of a broader platform offering dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance, crypto, infrastructure utilities, and more — all priced at $0.02 per request and settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/hr/reviews/40` accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers attach an `X-PAYMENT` header containing a signed USDC payment of up to 20,000 base units (i.e., $0.02, since USDC uses 6 decimals). The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base. No API keys, rate limits, or subscriptions are required — access is purely pay-per-use.\n\nNote that the endpoint path suggests it retrieves or interacts with a specific HR review record (ID 40). However, no detailed documentation, request schema, or response schema is available from the provider's site. The landing page lists many endpoint categories but does not include an explicit HR reviews category, so this endpoint may be less documented or experimental compared to the advertised analytics, AI, and finance APIs.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-call","hr-reviews","json-api","no-api-key"],"categories":["data","hr"],"synonyms":["HR review API","employee review endpoint","human resources data","pay-per-request API","x402 USDC API","lowpaymentfee","Base network API"],"warnings":["No request or response schema available for this endpoint","The /api/v1/hr/reviews/ path is not listed among the provider's advertised API categories — may be undocumented or experimental","No documentation pages rendered meaningful content (pricing, README, and /api pages only show 'Connect wallet')","Purpose and data returned by this endpoint are unclear without further documentation"],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/reviews/40","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/40","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (returns a valid 402 x402 challenge) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, no detailed documentation for this specific HR reviews endpoint, and the landing page does not even list an HR category — making the purpose and data format largely 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'/request':17,34 '0.02':16,33,85,134 '000':130 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':146 '20':129 '40':49,182 '6':138 'Base network API' 'HR review API' 'accept':100 'access':40,158 'address':145 'advertis':227 'ai':229 'ai/ml':74 'analyt':73,228 'api':69,150,232 'attach':115 'avail':193 'base':9,26,94,131,148 'base-network' 'broader':60 'call':4,21,68 'caller':114 'categori':205,214 'compar':224 'contain':121 'crypto':77 'data':72 'decim':139 'detail':185 'document':186,221 'dozen':63 'employee review endpoint' 'endpoint':7,24,36,70,98,168,204,217 'experiment':223 'explicit':211 'financ':76,231 'handl':108 'header':120 'howev':183 'hr':5,22,43,178,212 'hr-reviews' 'human resources data' 'i.e':133 'id':48,181 'includ':209 'infer':75 'infrastructur':78 'inlin':109 'interact':174 'json':105 'json-api' 'key':151 'land':200 'less':220 'limit':153 'list':202 'lowpaymentfee' 'lowpaymentfee.com':38 'mani':203 'may':218 'network':95 'no-api-key' 'note':165 'offer':62 'page':201 'part':57 'path':169 'pay':2,19,66,162 'pay-per-cal':1,18,65 'pay-per-call' 'pay-per-request API' 'pay-per-us':161 'payment':53,106,119,125,141 'per':3,20,67,86,163 'platform':61 'post':101 'price':83 'protocol':54,113 'provid':39,196 'pure':160 'rate':152 'record':180 'request':87,102,187 'requir':157 'resourc':45 'respons':190 'retriev':172 'return':104 'review':6,23,44,47,179,213 'schema':188,191 'sent':143 'settl':12,29,89 'sign':123 'sinc':135 'site':198 'span':71 'specif':46,97,177 'subscript':155 'suggest':170 'unit':132 'usdc':14,31,91,124,136 'usdc-settlement' 'use':137,164 'util':79 'via':10,27,50,110 'x':118 'x-payment':117 'x402':11,28,52,112 'x402 USDC API' 'x402-payment'","prices":[{"id":"8165d09b-1538-427d-829c-01341637bc21","listingId":"af2040ab-1919-4f55-819f-9ca8486650bd","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/40","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:20.126Z"}],"sources":[{"listingId":"af2040ab-1919-4f55-819f-9ca8486650bd","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/reviews/40","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:20.126Z","lastSeenAt":"2026-04-23T14:32:00.252Z"}],"details":{"listingId":"af2040ab-1919-4f55-819f-9ca8486650bd","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/reviews/40 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-signed-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 in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/40"},{"claim":"All endpoints on the platform 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":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/40"}],"useCases":["Retrieving HR review data for a specific review record","Integrating employee review information into automated workflows","Agent-driven access to HR data without pre-registration or API keys"],"bestFor":["Agents needing on-demand HR review data without subscription commitments","Developers prototyping integrations that require per-call payment","Scenarios where keyless, instant API access on Base is preferred"],"notFor":["Bulk retrieval of large HR datasets (pay-per-call adds up)","Use cases requiring detailed API documentation or guaranteed SLAs","Production systems needing well-documented request/response schemas"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:09.548Z"},"updatedAt":"2026-04-23T14:32:00.252Z"}}