{"id":"1df619b4-8e25-45ba-ae9b-957fffc8400b","shortId":"X6Uvms","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, paid per call using the x402 protocol. The specific resource `/api/v1/employees/13/salary` returns salary information for employee ID 13. Payment is settled in USDC on the Base network.\n\nThe x402 challenge indicates a maximum cost of 20,000 base units of USDC (6 decimals), which equals $0.02 per request. This is consistent with the provider's site-wide pricing of $0.02/request across all their API offerings. The provider advertises no API keys, no rate limits, and instant access — payment is handled entirely through the x402 payment header.\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 at the same $0.02 price point. However, this specific endpoint (`/employees/13/salary`) is not listed on the provider's landing page among the advertised APIs, and no documentation, request schema, or response schema is available. The actual data returned (whether it's mock/demo data or a real dataset) is unknown. The endpoint is live and returns a valid 402 challenge, but the lack of documentation and the absence of this route from the provider's own catalog raise questions about its intended use and data content.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-salary-lookup","pay-per-call","rest-api"],"categories":["data"],"synonyms":["employee salary API","payroll data endpoint","salary lookup","x402 API","pay-per-request API","USDC micropayment API","lowpaymentfee"],"warnings":["This specific endpoint (/api/v1/employees/13/salary) is not listed among the provider's advertised APIs on the landing page.","No request or response schema is available — the data returned is unknown.","Documentation pages (/docs, /pricing, /README) returned only a 'Connect wallet' prompt with no useful content.","The nature of the employee data (mock, demo, or real) is unverified."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/13/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/13/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 and returns a valid x402 402 challenge with clear pricing. However, there is no documentation, no request/response schema, no examples, and this specific endpoint is not listed on the provider's own landing page. The actual data content and purpose are unknown, making this effectively a stub 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'/employees/13/salary':163 '/request':103 '0.02':87,102,156 '000':78 '13':59 '20':77 '402':210 '6':83 'USDC micropayment API' 'absenc':219 'access':32,120 'across':104 'actual':188 'advertis':111,175 'ai/ml':146 'among':173 'analyt':145 'api':8,21,107,113,142,176 'avail':186 'base':10,23,67,79 'base-network' 'broad':135 'call':4,17,44,141 'catalog':136,228 'challeng':71,211 'consist':92 'content':237 'cost':75 'data':36,144,189,195,236 'dataset':199 'decim':84 'document':179,216 'employe':5,18,34,57 'employee salary API' 'employee-salary-lookup' 'endpoint':28,162,203 'entir':124 'equal':86 'finance/web3':148 'handl':123 'header':129 'host':133 'howev':159 'id':58 'indic':72 'infer':147 'inform':55 'infrastructur':150 'instant':119 'intend':233 'key':114 'lack':214 'land':171 'limit':117 'list':166 'live':205 'lookup':7,20 'lowpaymentfee' 'lowpaymentfee.com':30,132 'maximum':74 'mock/demo':194 'network':68 'offer':108 'page':172 'paid':42 'pay':2,15,139 'pay-per-cal':1,14,138 'pay-per-call' 'pay-per-request API' 'payment':60,121,128 'payroll data endpoint' 'per':3,16,43,88,140 'point':158 'post':40 'price':100,157 'protocol':48 'provid':31,95,110,131,169,225 'question':230 'rais':229 'rate':116 'real':198 'request':41,89,180 'resourc':51 'respons':183 'rest-api' 'return':53,190,207 'rout':222 'salari':6,19,35,54 'salary lookup' 'schema':181,184 'settl':62 'simpl':39 'site':98 'site-wid':97 'span':143 'specif':50,161 'unit':80 'unknown':201 'usdc':13,26,64,82 'usdc-settlement' 'use':45,234 'util':151 'valid':209 'via':11,24,37 'whether':191 'wide':99 'x402':12,25,47,70,127 'x402 API' 'x402-payment'","prices":[{"id":"c5862e85-5068-4fe5-9cf6-752ce6550988","listingId":"1df619b4-8e25-45ba-ae9b-957fffc8400b","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/13/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":"1df619b4-8e25-45ba-ae9b-957fffc8400b","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/13/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.054Z","lastSeenAt":"2026-04-25T05:33:45.840Z"}],"details":{"listingId":"1df619b4-8e25-45ba-ae9b-957fffc8400b","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/13/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":"The x402 challenge specifies maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/13/salary"},{"claim":"The provider advertises $0.02/request pricing across all APIs with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/13/salary"}],"useCases":["Retrieving salary information for a specific employee by ID","Integrating pay-per-call salary data into agent workflows","Demonstrating x402 payment protocol usage with a simple data endpoint"],"bestFor":["Developers experimenting with x402 payment protocol","Agents needing on-demand employee data without API key management","Quick one-off salary data lookups"],"notFor":["Bulk payroll data exports (single-employee endpoint, no batch support documented)","Production HR systems requiring authenticated, auditable data sources","Users needing detailed documentation or guaranteed SLAs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:18.498Z"},"updatedAt":"2026-04-25T05:33:45.840Z"}}