{"id":"ce90316d-1f7f-4d80-9283-d2d8ce42f04b","shortId":"MWyHfr","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 information for a specific employee (ID 29) 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 authorize each call.\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 uniformly at $0.02 per request. This particular endpoint falls under what appears to be a demo or sample HR/employee data resource. The x402 challenge was successfully captured, confirming the endpoint is live and accepting payment challenges with x402 version 1.\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 schema, no request/response examples, and no description of what fields the salary response contains. The endpoint's actual data content and input parameters are unknown beyond the URL path pattern.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-salary-data","pay-per-call","no-api-key"],"categories":["data","finance"],"synonyms":["employee salary API","payroll data endpoint","HR data API","x402 salary lookup","pay-per-request employee data","lowpaymentfee API"],"warnings":["No OpenAPI or schema documentation available — request and response formats are unknown","Docs, pricing, API, and README pages all render only 'Connect wallet' with no technical content","The specific endpoint (/employees/29/salary) is not listed on the site's main API catalog, raising questions about whether it is a demo or production resource","Response content and data accuracy cannot be verified without making a paid request"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/29/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/29/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 challenge, but documentation is essentially nonexistent — no OpenAPI schema, no request/response examples, no description of the data model. The endpoint path suggests employee salary data but nothing confirms what fields are returned or what input is expected in the POST 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'1':158 '29':47 'HR data API' 'accept':152 'access':82 'actual':203 'ai/ml':111 'analyt':110 'api':74,107,166 'appear':130 'attach':85 'author':91 'base':10,25,57 'base-network' 'beyond':211 'broad':100 'call':4,19,93,106 'caller':83 'captur':145 'catalog':101 'challeng':142,154 'coin':62 'confirm':146 'connect':174 'contain':199 'content':205 'cost':65 'data':7,22,109,138,204 'demo':134 'descript':192 'detail':181 'doc':164 'document':159 'employe':5,20,39,45 'employee salary API' 'employee-salary-data' 'enabl':34 'endpoint':8,23,35,71,126,148,201 'exampl':189 'extrem':161 'fall':127 'field':195 'finance/web3':113 'header':89 'host':95 'hr/employee':137 'id':46 'infer':112 'inform':41 'infrastructur':115 'input':207 'instant':81 'key':75 'limit':78 'live':150 'lowpaymentfee API' 'lowpaymentfee.com':37,97 'network':58 'no-api-key' 'offer':98 'openapi':185 'page':169 'paramet':208 'particular':125 'path':214 'pattern':215 'pay':2,17,104 'pay-per-cal':1,16,103 'pay-per-call' 'pay-per-request employee data' 'payment':52,88,153 'payroll data endpoint' 'per':3,18,68,105,122 'post':50 'price':118,165 'prompt':176 'provid':80 'rate':77 'readm':168 'render':171 'request':51,69,123 'request/response':188 'requir':72 'resourc':139 'respons':198 'return':38 'salari':6,21,40,197 'sampl':136 'schema':186 'settl':13,28,54 'simpli':84 'site':96 'span':108 'spars':162 'specif':44 'success':144 'technic':180 'uniform':119 'unknown':210 'url':213 'usd':61 'usdc':15,30,60 'usdc-settlement' 'use':59 'util':116 'version':157 'via':11,26,48 'wallet':175 'x402':12,27,33,87,141,156 'x402 salary lookup' 'x402-enabled':32 'x402-payment'","prices":[{"id":"83384ecc-d40f-45b3-8307-233673e8b28c","listingId":"ce90316d-1f7f-4d80-9283-d2d8ce42f04b","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/29/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":"2026-04-21T18:32:16.711Z"}],"sources":[{"listingId":"ce90316d-1f7f-4d80-9283-d2d8ce42f04b","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/29/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:16.711Z","lastSeenAt":"2026-04-23T06:05:08.198Z"}],"details":{"listingId":"ce90316d-1f7f-4d80-9283-d2d8ce42f04b","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/29/salary \\\n  -H \"X-PAYMENT: <x402_payment_token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 x402 challenge with USDC on Base network at maxAmountRequired 20000 (=$0.02)","source_url":"https://lowpaymentfee.com/api/v1/employees/29/salary"},{"claim":"The site advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Base","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving salary information for a specific employee on demand","Integrating pay-per-call HR data into agent workflows","Demonstrating x402 micropayment protocol usage"],"bestFor":["Developers experimenting with x402 payment protocol","Agents needing on-demand employee salary lookups","Projects requiring keyless, pay-per-call API access on Base"],"notFor":["Bulk payroll data exports (single-employee endpoint, no batch support documented)","Production HR systems requiring documented schemas and SLAs","Users without USDC on Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:14.751Z"},"updatedAt":"2026-04-23T06:05:08.198Z"}}