{"id":"258e361f-8be4-401a-9439-9b6985714488","shortId":"x2MJmj","kind":"x402","title":"Pay-per-call HR reviews endpoint on Base via x402 — $0.02 per request in USDC.","tagline":"Pay-per-call HR reviews endpoint on Base via x402 — $0.02 per request in USDC.","description":"This endpoint at `/api/v1/hr/reviews/26` is part of the lowpaymentfee.com platform, which offers a broad catalog of pay-per-call APIs settled via the x402 protocol on the Base network using USDC. The specific endpoint appears to serve HR review data (resource ID 26), though the exact response schema and input parameters are not documented in the available crawl material. The endpoint is live and returns a valid x402 challenge when called without payment.\n\nThe x402 challenge specifies a maximum amount of 20,000 base units of USDC (0x8335… on Base), which equals $0.02 USD (USDC uses 6 decimals). Payment is made via the `exact` scheme with a 300-second timeout. No API keys or rate limits are advertised — access is purely payment-gated. The platform markets itself as offering instant, keyless access across categories including Data & Analytics, AI & ML, Finance & Web3, and Infrastructure, all at the same $0.02 per request price point.\n\nBecause the endpoint path references `/hr/reviews/26`, it likely returns structured JSON data about a specific HR review record, but no response schema, sample output, or documentation beyond the generic landing page is available. The broader platform lists many endpoints but provides no OpenAPI spec, detailed docs, or example payloads for any of them.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-call","hr-data","json-response","no-api-key"],"categories":["data"],"synonyms":["HR review API","human resources review","employee review data","x402 paid API","lowpaymentfee","pay-per-request API","Base USDC API"],"warnings":["No OpenAPI or schema documentation available for this endpoint","The endpoint path '/api/v1/hr/reviews/26' references a hardcoded resource ID; unclear if this is a real dataset or placeholder","No sample response or input schema is provided anywhere in the crawl material","The broader platform lists many diverse endpoints (AI, finance, geocoding, HR) at identical prices with no docs — provenance and data quality are unknown"],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/reviews/26","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/26","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 challenge, but there is no OpenAPI spec, no response schema, no example payloads, and no documentation beyond a generic landing page. The specific purpose of '/hr/reviews/26' is unclear — it could be sample/demo data. Effectively a stub 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'/hr/reviews/26':192 '0.02':12,28,126,182 '000':116 '0x8335':121 '20':115 '26':76 '300':141 '6':130 'Base USDC API' 'HR review API' 'access':152,166 'across':167 'advertis':151 'ai':172 'amount':113 'analyt':171 'api':53,145 'appear':68 'avail':90,219 'base':9,25,61,117,123 'base-network' 'beyond':213 'broad':46 'broader':221 'call':4,20,52,104 'catalog':47 'categori':168 'challeng':102,109 'crawl':91 'data':73,170,198 'decim':131 'detail':231 'doc':232 'document':87,212 'employee review data' 'endpoint':7,23,34,67,94,189,225 'equal':125 'exact':79,137 'exampl':234 'financ':174 'gate':157 'generic':215 'hr':5,21,71,202 'hr-data' 'human resources review' 'id':75 'includ':169 'infrastructur':177 'input':83 'instant':164 'json':197 'json-response' 'key':146 'keyless':165 'land':216 'like':194 'limit':149 'list':223 'live':96 'lowpaymentfee' 'lowpaymentfee.com':41 'made':134 'mani':224 'market':160 'materi':92 'maximum':112 'ml':173 'network':62 'no-api-key' 'offer':44,163 'openapi':229 'output':210 'page':217 'paramet':84 'part':38 'path':190 'pay':2,18,50 'pay-per-cal':1,17,49 'pay-per-call' 'pay-per-request API' 'payload':235 'payment':106,132,156 'payment-g':155 'per':3,13,19,29,51,183 'platform':42,159,222 'point':186 'price':185 'protocol':58 'provid':227 'pure':154 'rate':148 'record':204 'refer':191 'request':14,30,184 'resourc':74 'respons':80,207 'return':98,195 'review':6,22,72,203 'sampl':209 'schema':81,208 'scheme':138 'second':142 'serv':70 'settl':54 'spec':230 'specif':66,201 'specifi':110 'structur':196 'though':77 'timeout':143 'unit':118 'usd':127 'usdc':16,32,64,120,128 'usdc-settlement' 'use':63,129 'valid':100 'via':10,26,55,135 'web3':175 'without':105 'x402':11,27,57,101,108 'x402 paid API' 'x402-payment'","prices":[{"id":"a9e1ad43-f727-4bde-83a7-875622cf780d","listingId":"258e361f-8be4-401a-9439-9b6985714488","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/26","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.814Z"}],"sources":[{"listingId":"258e361f-8be4-401a-9439-9b6985714488","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/reviews/26","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.814Z","lastSeenAt":"2026-04-23T16:08:14.631Z"}],"details":{"listingId":"258e361f-8be4-401a-9439-9b6985714488","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/reviews/26 \\\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 x402 challenge specifies maxAmountRequired of 20000 base units of USDC on Base network with a 300-second timeout","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/26"},{"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 address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/26"}],"useCases":["Retrieving HR review data on a per-call payment basis","Integrating employee review records into automated workflows","Agent-driven access to HR datasets without API key management"],"bestFor":["Agents needing keyless, pay-per-call access to HR data","Developers prototyping with x402 payment flows on Base","Low-volume consumers who want no subscription commitment"],"notFor":["Bulk HR data exports requiring thousands of records at once","Users who need detailed API documentation or guaranteed SLAs","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:09.992Z"},"updatedAt":"2026-04-23T16:08:14.631Z"}}