{"id":"830a5dc3-d490-4edd-9f22-cdeb76d9a5c6","shortId":"EWCg7J","kind":"x402","title":"Pay-per-call employee salary lookup API on Base via x402 (USDC).","tagline":"Pay-per-call employee salary lookup API on Base via x402 (USDC).","description":"This endpoint at lowpaymentfee.com provides access to employee salary data via a simple POST request, settled per-call using the x402 payment protocol on the Base network with USDC. The specific resource `/api/v1/employees/12/salary` returns salary information for employee ID 12. The x402 challenge confirms the endpoint is live and accepts payments of up to $0.02 per request (20,000 base units of USDC with 6 decimals = $0.02).\n\nThe provider lowpaymentfee.com hosts a broader catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance, and utility services, all priced at $0.02 per request. The platform advertises no API keys, no rate limits, and instant access. Payments settle on the Base L2 network using USDC (contract 0x8335...2913). No OpenAPI schema or detailed documentation was found beyond the landing page listing; the docs, pricing, and README pages all returned only a \"Connect wallet\" prompt with no substantive content.\n\nBecause the endpoint path references a specific employee ID and the description is simply \"Premium API Access,\" the exact response schema and the full set of available employee endpoints are unknown. The endpoint is confirmed live via a valid 402 challenge, but the lack of documentation means callers must discover the response format empirically.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-salary-lookup","pay-per-call","no-api-key"],"categories":["data","finance"],"synonyms":["employee salary API","payroll data endpoint","x402 API","USDC micropayment API","Base network API","pay-per-request salary","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","All documentation pages (/docs, /pricing, /README, /api) returned no content beyond 'Connect wallet'","The endpoint path references a hardcoded employee ID (12); it is unclear whether other IDs are supported or what the broader API surface looks like","The 'Premium API Access' description is generic and does not describe the actual data returned","No rate limit or SLA information available"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/12/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/12/salary","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 x402 402 challenge, but there is no OpenAPI schema, no response examples, and no meaningful documentation (all doc pages return only 'Connect wallet'). The endpoint path suggests a demo/sample resource (employee 12) with unclear real-world utility. Effectively a stub 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'0.02':82,94,120 '000':86 '0x8335':145 '12':67 '20':85 '2913':146 '402':216 '6':92 'Base network API' 'USDC micropayment API' 'accept':77 'access':32,134,193 'advertis':125 'ai/ml':111 'analyt':110 'api':8,21,107,127,192 'avail':203 'base':10,23,53,87,139 'base-network' 'beyond':155 'broader':100 'call':4,17,45,106 'caller':224 'catalog':101 'challeng':70,217 'confirm':71,211 'connect':170 'content':176 'contract':144 'data':36,109 'decim':93 'descript':188 'detail':151 'discov':226 'doc':161 'document':152,222 'empir':230 'employe':5,18,34,65,184,204 'employee salary API' 'employee-salary-lookup' 'endpoint':28,73,179,205,209 'exact':195 'financ':113 'format':229 'found':154 'full':200 'host':98 'id':66,185 'infer':112 'inform':63 'instant':133 'key':128 'l2':140 'lack':220 'land':157 'limit':131 'list':159 'live':75,212 'lookup':7,20 'lowpaymentfee' 'lowpaymentfee.com':30,97 'mean':223 'must':225 'network':54,141 'no-api-key' 'openapi':148 'page':158,165 'path':180 'pay':2,15,104 'pay-per-cal':1,14,103 'pay-per-call' 'pay-per-request salary' 'payment':49,78,135 'payroll data endpoint' 'per':3,16,44,83,105,121 'per-cal':43 'platform':124 'post':40 'premium':191 'price':118,162 'prompt':172 'protocol':50 'provid':31,96 'rate':130 'readm':164 'refer':181 'request':41,84,122 'resourc':59 'respons':196,228 'return':61,167 'salari':6,19,35,62 'schema':149,197 'servic':116 'set':201 'settl':42,136 'simpl':39 'simpli':190 'span':108 'specif':58,183 'substant':175 'unit':88 'unknown':207 'usdc':13,26,56,90,143 'usdc-settlement' 'use':46,142 'util':115 'valid':215 'via':11,24,37,213 'wallet':171 'x402':12,25,48,69 'x402 API' 'x402-payment'","prices":[{"id":"18fa8387-9013-4be5-badb-19457ff02c65","listingId":"830a5dc3-d490-4edd-9f22-cdeb76d9a5c6","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/12/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":"2026-04-21T18:32:13.972Z"}],"sources":[{"listingId":"830a5dc3-d490-4edd-9f22-cdeb76d9a5c6","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/12/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:13.972Z","lastSeenAt":"2026-04-23T09:02:01.588Z"}],"details":{"listingId":"830a5dc3-d490-4edd-9f22-cdeb76d9a5c6","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/12/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 a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/12/salary"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/12/salary"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages (/docs, /pricing, /README) contain only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee salary information programmatically","Integrating salary data into payroll or HR dashboards","Agent-driven lookups of compensation data without API key management"],"bestFor":["Developers needing on-demand salary data without subscription commitments","AI agents that can settle x402 payments autonomously on Base","Quick one-off lookups where per-call pricing is preferable to a subscription"],"notFor":["Bulk payroll processing requiring thousands of calls (no documented batch endpoint)","Users without a Base-compatible USDC wallet","Anyone needing detailed API documentation or guaranteed SLAs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:18.63Z"},"updatedAt":"2026-04-23T09:02:01.588Z"}}