{"id":"01a07d17-58e5-4ba1-9f10-53e55c63d022","shortId":"KZaHJb","kind":"x402","title":"Pay-per-call employee salary data endpoint on Base via x402 (USDC).","tagline":"Pay-per-call employee salary data endpoint on Base via x402 (USDC).","description":"This x402-enabled endpoint at lowpaymentfee.com returns employee salary data for a specific employee (ID 129) 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 include an X-PAYMENT header with a valid x402 payment proof.\n\nThe endpoint is part of a broader platform (lowpaymentfee.com) that offers a variety of pay-per-call APIs across categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints on the platform share the same $0.02/request pricing model and settle on the Base L2 network using USDC.\n\nThe specific endpoint `/api/v1/employees/129/salary` appears to be a demonstration or sample data endpoint. No OpenAPI schema, detailed documentation, or example responses were found during crawling — the docs, pricing, and API pages all returned only a \"Connect wallet\" prompt with no substantive content. The response format is advertised as application/json, but the exact output fields are unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-salary-data","pay-per-call","no-api-key","json-response"],"categories":["data"],"synonyms":["employee salary API","payroll data endpoint","x402 API","micropayment API","Base USDC API","pay-per-request data","lowpaymentfee"],"warnings":["No OpenAPI or output schema available — response format is unknown beyond application/json","Documentation pages (/docs, /pricing, /api, /README) returned no substantive content","Endpoint appears to serve a single hardcoded employee record (ID 129); unclear if other IDs are supported","The nature and source of the salary data is undocumented — may be synthetic/demo data"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/129/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/129/salary","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no example responses, and the docs/pricing/API pages are all empty beyond a wallet-connect prompt. The endpoint path suggests sample/demo data (employee 129 salary) with no documentation of the response 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'/request':134 '0.02':63,133 '129':43 'Base USDC API' 'access':78 'across':112 'advertis':192 'ai':117 'analyt':116 'api':70,111,175 'appear':150 'application/json':194 'base':10,23,53,141 'base-network' 'broader':99 'call':4,17,110 'caller':79 'categori':113 'coin':58 'connect':181 'content':187 'cost':61 'crawl':170 'data':7,20,37,115,157 'demonstr':154 'detail':162 'doc':172 'document':163 'employe':5,18,35,41 'employee salary API' 'employee-salary-data' 'enabl':30 'endpoint':8,21,31,67,94,126,148,158 'exact':197 'exampl':165 'field':199 'financ':120 'format':190 'found':168 'header':86 'id':42 'includ':81,114 'infrastructur':123 'instant':77 'json-response' 'key':71 'l2':142 'learn':119 'limit':74 'lowpaymentfee' 'lowpaymentfee.com':33,101 'machin':118 'micropayment API' 'model':136 'network':54,143 'no-api-key' 'offer':103 'openapi':160 'output':198 'page':176 'part':96 'pay':2,15,108 'pay-per-cal':1,14,107 'pay-per-call' 'pay-per-request data' 'payment':48,85,91 'payroll data endpoint' 'per':3,16,64,109 'platform':100,129 'post':46 'price':135,173 'prompt':183 'proof':92 'provid':76 'rate':73 'request':47,65 'requir':68 'respons':166,189 'return':34,178 'salari':6,19,36 'sampl':156 'schema':161 'settl':50,138 'share':130 'simpli':80 'specif':40,147 'substant':186 'unknown':201 'usd':57 'usdc':13,26,56,145 'usdc-settlement' 'use':55,144 'util':124 'valid':89 'varieti':105 'via':11,24,44 'wallet':182 'web3':121 'x':84 'x-payment':83 'x402':12,25,29,90 'x402 API' 'x402-enabled':28 'x402-payment'","prices":[{"id":"d2d34999-dd2b-44c4-9cb6-5deac1d89882","listingId":"01a07d17-58e5-4ba1-9f10-53e55c63d022","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/129/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":"2026-04-21T18:32:14.054Z"}],"sources":[{"listingId":"01a07d17-58e5-4ba1-9f10-53e55c63d022","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/129/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.054Z","lastSeenAt":"2026-04-25T05:33:45.836Z"}],"details":{"listingId":"01a07d17-58e5-4ba1-9f10-53e55c63d022","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/129/salary \\\n  -H \"X-PAYMENT: <x402_payment_proof>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns 402 with x402 challenge requiring USDC payment on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/129/salary"},{"claim":"maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02","source_url":"https://lowpaymentfee.com/api/v1/employees/129/salary"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/129/salary"}],"useCases":["Retrieving salary information for a specific employee record","Demonstrating x402 payment protocol integration","Testing pay-per-call API consumption with USDC on Base"],"bestFor":["Developers experimenting with x402 payment protocol","Agents that need on-demand data retrieval with crypto micropayments","Projects requiring keyless, pay-as-you-go API access"],"notFor":["Production payroll systems needing bulk employee data","Users without USDC on the Base network","Applications requiring detailed API documentation or SLAs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:18.515Z"},"updatedAt":"2026-04-25T05:33:45.836Z"}}