{"id":"c44c826c-9684-49a6-8b7c-17453acc246b","shortId":"bVzCjg","kind":"x402","title":"x402-payable HR reviews endpoint on Base, $0.02/request in USDC — no API keys required.","tagline":"x402-payable HR reviews endpoint on Base, $0.02/request in USDC — no API keys required.","description":"This endpoint at lowpaymentfee.com provides access to an HR reviews resource (specifically review ID 5) via the x402 payment protocol. It is part of a broader platform offering dozens of pay-per-call API endpoints across data analytics, AI/ML, finance, infrastructure, and more — all settled on the Base network using USDC.\n\nThe endpoint accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers include an X-PAYMENT header with a signed USDC payment on Base. The advertised maximum cost is 20,000 base units of USDC (6 decimals), which equals $0.02 per request. The platform emphasizes simplicity: no API keys, no rate limits, no subscriptions — just pay per call.\n\nNote that the specific endpoint path `/api/v1/hr/reviews/5` is not listed on the provider's landing page among the documented API categories (Data & Analytics, AI & ML, Finance & Web3, Infrastructure). It appears to be an HR-domain endpoint (employee reviews or similar), but no further documentation, request schema, or response schema is available. The docs, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional content. Without documentation or example responses, the exact data returned and the expected POST body are unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","hr-reviews","pay-per-call","no-api-key","json-response"],"categories":["data","hr"],"synonyms":["employee reviews API","HR data endpoint","human resources reviews","x402 paid API","lowpaymentfee","pay-per-request API","USDC micropayment API"],"warnings":["The /api/v1/hr/reviews/5 path is not listed among the provider's documented endpoints — it may be a test or unlisted route.","No request body schema or response schema is available; callers cannot know what to send or expect back.","All documentation pages (docs, pricing, README) render only 'Connect wallet' with no useful content.","The nature of the 'HR reviews' data is unspecified — could involve personal/employee data subject to privacy regulations."],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/reviews/5","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/5","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (returns a valid 402 x402 challenge) and pricing is clear ($0.02 USDC on Base). However, the specific /hr/reviews/5 path is undocumented on the provider's site, there is no OpenAPI schema, no request/response examples, and all doc pages render only a wallet-connect prompt. The actual data returned is 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'/request':10,26 '0.02':9,25,130 '000':121 '20':120 '5':47 '6':126 'HR data endpoint' 'USDC micropayment API' 'accept':87 'access':38 'across':69 'addit':216 'advertis':116 'ai':172 'ai/ml':72 'among':165 'analyt':71,171 'api':14,30,67,138,168 'appear':178 'avail':200 'base':8,24,81,114,122 'base-network' 'bodi':231 'broader':58 'call':66,148 'caller':101 'categori':169 'connect':211 'content':217 'cost':118 'data':70,170,225 'decim':127 'doc':202 'document':167,193,219 'domain':184 'dozen':61 'emphas':135 'employe':186 'employee reviews API' 'endpoint':6,22,34,68,86,153,185 'equal':129 'exact':224 'exampl':221 'expect':229 'financ':73,174 'handl':95 'header':107 'hr':4,20,41,183 'hr-domain':182 'hr-reviews' 'human resources reviews' 'id':46 'includ':102 'infrastructur':74,176 'inlin':96 'json':92 'json-response' 'key':15,31,139 'land':163 'limit':142 'list':158 'lowpaymentfee' 'lowpaymentfee.com':36 'maximum':117 'ml':173 'network':82 'no-api-key' 'note':149 'offer':60 'page':164,206 'part':55 'path':154 'pay':64,146 'pay-per-cal':63 'pay-per-call' 'pay-per-request API' 'payabl':3,19 'payment':51,93,106,112 'per':65,131,147 'platform':59,134 'post':88,230 'price':203 'prompt':213 'protocol':52,100 'provid':37,161 'rate':141 'readm':205 'render':208 'request':89,132,194 'requir':16,32 'resourc':43 'respons':197,222 'return':91,226 'review':5,21,42,45,187 'schema':195,198 'settl':78 'sign':110 'similar':189 'simplic':136 'specif':44,152 'subscript':144 'unit':123 'unknown':233 'usdc':12,28,84,111,125 'usdc-settlement' 'use':83 'via':48,97 'wallet':212 'web3':175 'without':218 'x':105 'x-payment':104 'x402':2,18,50,99 'x402 paid API' 'x402-payable':1,17 'x402-payment'","prices":[{"id":"c4a0040a-f1b6-4372-b66e-0b93fc9e8e1b","listingId":"c44c826c-9684-49a6-8b7c-17453acc246b","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/5","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.886Z"}],"sources":[{"listingId":"c44c826c-9684-49a6-8b7c-17453acc246b","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/reviews/5","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.886Z","lastSeenAt":"2026-04-23T16:32:14.617Z"}],"details":{"listingId":"c44c826c-9684-49a6-8b7c-17453acc246b","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/reviews/5 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <signed-x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/5"},{"claim":"The platform advertises $0.02 per request, no API keys, no rate limits, 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/5"},{"claim":"Docs, pricing, and README pages show only 'Connect wallet' with no additional documentation","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving HR review data for a specific employee or review record","Integrating paid HR data into automated agent workflows","Demonstrating x402 micropayment protocol usage on Base"],"bestFor":["Agents or developers experimenting with x402 payment protocol","Low-volume, pay-as-you-go data access without subscription overhead","Crypto-native workflows that can sign USDC transactions on Base"],"notFor":["Users needing well-documented, production-grade HR APIs with schemas and examples","High-volume bulk data retrieval where per-call pricing is inefficient","Users without a Base-compatible wallet or USDC holdings"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:09.972Z"},"updatedAt":"2026-04-23T16:32:14.617Z"}}