{"id":"eadc1a71-11f8-42da-8ab3-e6ef2c9bac85","shortId":"ksxP4S","kind":"x402","title":"Pay-per-call employee salary data endpoint on Base via x402, settled in USDC.","tagline":"Pay-per-call employee salary data endpoint on Base via x402, settled in USDC.","description":"This x402-enabled endpoint at lowpaymentfee.com returns employee salary data for a specific employee (ID 107) via a POST request. Payment is settled on the Base network using USDC (USD Coin) at a cost of $0.02 per request. The endpoint requires no API keys, no rate limits, and provides instant access — callers simply attach an x402 payment header to authenticate.\n\nThe hosting site lowpaymentfee.com offers 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. This particular endpoint sits under what appears to be a sample or demo HR/employee data resource. The x402 challenge was successfully captured (HTTP 402 with valid accepts block), confirming the endpoint is live.\n\nDocumentation is extremely sparse — the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available. The actual structure of the salary response and what POST body (if any) is expected are unknown. Use with caution until more documentation surfaces.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","salary-lookup","pay-per-call","no-api-key"],"categories":["data","finance"],"synonyms":["employee salary API","HR data endpoint","payroll lookup","x402 paid API","USDC micropayment API","Base network API","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available — request body and response format are unknown","All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no technical content","The endpoint path '/employees/107/salary' suggests sample/demo data; unclear if this serves real or synthetic information","No robots.txt or agents.txt found"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/107/salary","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/employees/107/salary","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The endpoint path suggests employee salary data but the actual payload structure is entirely 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'107':47 '402':144 'Base network API' 'HR data endpoint' 'USDC micropayment API' 'accept':147 'access':82 'actual':191 'ai/ml':109 'analyt':108 'api':74,105,161 'appear':127 'attach':85 'authent':91 'avail':189 'base':10,25,57 'base-network' 'block':148 'bodi':200 'broad':98 'call':4,19,104 'caller':83 'captur':142 'catalog':99 'caution':209 'challeng':139 'coin':62 'confirm':149 'connect':169 'cost':65 'data':7,22,41,107,135 'demo':133 'detail':176 'doc':159 'document':154,212 'employe':5,20,39,45 'employee salary API' 'employee-data' 'enabl':34 'endpoint':8,23,35,71,123,151 'exampl':187 'expect':204 'extrem':156 'finance/web3':111 'header':89 'host':93 'hr/employee':134 'http':143 'id':46 'infer':110 'infrastructur':113 'instant':81 'key':75 'limit':78 'live':153 'lowpaymentfee' 'lowpaymentfee.com':37,95 'network':58 'no-api-key' 'offer':96 'openapi':180 'page':164 'particular':122 'pay':2,17,102 'pay-per-cal':1,16,101 'pay-per-call' 'payload':188 'payment':52,88 'payroll lookup' 'per':3,18,68,103,119 'post':50,199 'price':116,160 'prompt':171 'provid':80 'rate':77 'readm':163 'render':166 'request':51,69,120 'request/response':183 'requir':72 'resourc':136 'respons':196 'return':38 'salari':6,21,40,195 'salary-lookup' 'sampl':131 'schema':184 'settl':13,28,54 'simpli':84 'sit':124 'site':94 'span':106 'spars':157 'spec':181 'specif':44 'structur':192 'success':141 'surfac':213 'technic':175 'unknown':206 'usd':61 'usdc':15,30,60 'usdc-settlement' 'use':59,207 'util':114 'valid':146 'via':11,26,48 'wallet':170 'x402':12,27,33,87,138 'x402 paid API' 'x402-enabled':32 'x402-payment'","prices":[{"id":"52460c60-cc90-4cba-9f14-529a3a6d0134","listingId":"eadc1a71-11f8-42da-8ab3-e6ef2c9bac85","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/employees/107/salary","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:13.270Z"}],"sources":[{"listingId":"eadc1a71-11f8-42da-8ab3-e6ef2c9bac85","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/107/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:13.270Z","lastSeenAt":"2026-04-23T10:31:44.138Z"}],"details":{"listingId":"eadc1a71-11f8-42da-8ab3-e6ef2c9bac85","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/107/salary \\\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":"Endpoint returns HTTP 402 with x402 challenge on POST, confirming it is live","source_url":"https://lowpaymentfee.com/api/v1/employees/107/salary"},{"claim":"Payment is 20000 base units of USDC (6 decimals = $0.02) on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/107/salary"},{"claim":"Site advertises $0.02/request pricing with no API keys, no rate limits, instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/107/salary"},{"claim":"Docs, pricing, API, and README pages show only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving salary information for a specific employee on demand","Demonstrating x402 payment protocol integration for pay-per-call APIs","Building HR or payroll dashboards that pull salary data programmatically"],"bestFor":["Developers experimenting with x402 payment-gated APIs","Agents that need on-demand employee compensation data","Projects exploring micropayment-based API monetization on Base"],"notFor":["Production HR systems requiring bulk employee data exports","Users who need detailed API documentation and request/response schemas before integrating","Anyone without a Base-network USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:19.531Z"},"updatedAt":"2026-04-23T10:31:44.138Z"}}