{"id":"97256880-e269-4414-95eb-d90c767d07a5","shortId":"wNXmw3","kind":"x402","title":"Pay-per-call HR reviews data endpoint on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call HR reviews data endpoint on Base via x402, settled in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides access to HR review data (specifically resource ID 14) via the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of 20,000 base units, which equals $0.02 per request (USDC uses 6 decimals).\n\nThe provider, lowpaymentfee.com, hosts a broad catalog of pay-per-call APIs spanning data & analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments. This specific endpoint falls under an HR reviews category that is not prominently listed on the landing page, so its exact data schema and response fields are unknown. The x402 challenge was successfully captured (HTTP 402), confirming the endpoint is live.\n\nDocumentation is extremely sparse: the /docs, /pricing, /api, and /README pages all returned only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no example request/response, and no description of what fields the HR reviews resource returns. Prospective callers should be aware that the data contract is essentially undocumented.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","hr-data","pay-per-call","no-api-key","json-response"],"categories":["data"],"synonyms":["HR reviews API","employee reviews","human resources data","x402 API","pay-per-request API","lowpaymentfee","Base USDC API"],"warnings":["No OpenAPI or schema documentation available for this endpoint","The /api/v1/hr/reviews/14 path is not listed among the provider's advertised APIs on the landing page","All documentation pages (/docs, /pricing, /api, /README) returned only 'Connect wallet' with no useful content","Response schema and required request body fields are completely unknown"],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/reviews/14","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/14","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is confirmed live via a valid 402 x402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no documentation beyond a wallet-connect prompt, no example request/response, and the HR reviews resource is not even listed on the provider's landing page. The data contract is entirely 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'/docs':178 '/pricing':179 '/readme':182 '/request':18,36 '0.02':17,35,86,118 '000':81 '0x8335':73 '14':50 '20':80 '2913':74 '402':167 '6':91 'Base USDC API' 'HR reviews API' 'accept':57 'access':42 'ai/ml':109 'analyt':108 'api':105,123 'awar':218 'base':10,28,68,82 'base-network' 'broad':98 'call':4,22,104 'caller':215 'captur':165 'catalog':99 'categori':140 'challeng':162 'commit':131 'confirm':168 'connect':188 'content':194 'contract':72,222 'cost':78 'data':7,25,46,107,153,221 'decim':92 'descript':205 'document':173 'employee reviews' 'endpoint':8,26,38,134,170 'equal':85 'essenti':224 'exact':152 'exampl':201 'extrem':175 'fall':135 'field':157,208 'finance/web3':111 'host':96 'hr':5,23,44,138,210 'hr-data' 'http':166 'human resources data' 'id':49 'infer':110 'infrastructur':113 'json':62 'json-response' 'key':124 'land':148 'limit':127 'list':145 'live':172 'lowpaymentfee' 'lowpaymentfee.com':40,95 'maximum':77 'minimum':130 'network':69 'no-api-key' 'openapi':198 'page':149,183 'pay':2,20,102 'pay-per-cal':1,19,101 'pay-per-call' 'pay-per-request API' 'payment':54,63 'per':3,21,87,103,119 'post':58 'price':116 'promin':144 'prompt':190 'prospect':214 'protocol':55 'provid':41,94 'rate':126 'request':59,88,120 'request/response':202 'resourc':48,212 'respons':156 'return':61,185,213 'review':6,24,45,139,211 'schema':154 'settl':13,31,65 'span':106 'spars':176 'spec':199 'specif':47,133 'success':164 'undocu':225 'unit':83 'unknown':159 'usdc':15,33,71,89 'usdc-settlement' 'use':70,90 'util':114 'via':11,29,51 'wallet':189 'x402':12,30,53,161 'x402 API' 'x402-payment'","prices":[{"id":"56a787b9-0ef6-4fc4-9f1f-c917aae27f69","listingId":"97256880-e269-4414-95eb-d90c767d07a5","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/14","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.515Z"}],"sources":[{"listingId":"97256880-e269-4414-95eb-d90c767d07a5","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/reviews/14","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.515Z","lastSeenAt":"2026-04-23T19:02:14.081Z"}],"details":{"listingId":"97256880-e269-4414-95eb-d90c767d07a5","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/reviews/14 \\\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 HTTP 402 with an x402 challenge advertising USDC on Base at maxAmountRequired 20000 (=$0.02)","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/14"},{"claim":"The provider advertises $0.02/request pricing with no API keys, no rate limits, and instant access on the Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/14"}],"useCases":["Retrieving HR review data for a specific resource (ID 14) on demand","Integrating pay-per-call HR data into agent workflows without API key management","Programmatic access to employee review information settled via crypto micropayments"],"bestFor":["Agents or applications needing on-demand HR review data without subscription commitments","Developers experimenting with x402 payment-gated APIs on Base","Low-volume, pay-as-you-go data retrieval"],"notFor":["Users who need detailed API documentation or guaranteed response schemas before integrating","High-volume bulk HR data extraction (no documented batch endpoints)","Users without access to USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.436Z"},"updatedAt":"2026-04-23T19:02:14.081Z"}}