{"id":"7b309e58-cbca-408a-9a5e-b42184675699","shortId":"DJGNzX","kind":"x402","title":"x402-gated employee salary endpoint on Base, pay-per-request with USDC.","tagline":"x402-gated employee salary endpoint on Base, pay-per-request with USDC.","description":"This endpoint at lowpaymentfee.com exposes an employee salary resource at `/api/v1/employees/53/salary` behind an x402 paywall. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) via the x402 \"exact\" scheme. The maximum amount required per call is 20,000 base units of USDC, which at 6 decimals equals $0.02 per request.\n\nThe broader lowpaymentfee.com platform advertises a variety of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all at the same $0.02/request price point. The platform emphasizes no API keys, no rate limits, and instant access. However, the specific `/api/v1/employees/53/salary` endpoint is not listed among the advertised API categories on the landing page, and no documentation, request schema, or response schema is available for it. The docs, pricing, and API pages all returned only a \"Connect wallet\" prompt with no further content.\n\nBecause there is no OpenAPI spec, no request/response examples, and no documentation describing what this endpoint actually returns or what inputs it expects, the practical utility is unclear. The endpoint is confirmed live (402 challenge captured), but the lack of any schema or documentation makes integration speculative.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","employee-salary-data","json-response"],"categories":["data","finance"],"synonyms":["employee salary API","payroll data endpoint","salary lookup","x402 paid API","USDC micropayment API","lowpaymentfee"],"warnings":["No OpenAPI spec or request/response schema available","No documentation pages returned meaningful content (all showed only 'Connect wallet')","The /api/v1/employees/53/salary endpoint is not listed among the provider's advertised APIs","Purpose and data returned by this endpoint are entirely unknown — could be demo/test data"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/53/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/53/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 there is zero documentation, no request/response schema, and the specific employee salary endpoint is not even listed on the provider's own landing page. Without knowing what the endpoint returns or what inputs it expects, this is effectively a stub 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'/request':117 '0.02':86,116 '000':76 '0x8335':61 '20':75 '2913':62 '402':211 '6':83 'USDC micropayment API' 'accept':45 'access':131 'actual':194 'advertis':93,142 'ai/ml':105 'among':140 'amount':70 'analyt':104 'api':101,124,143,165 'avail':158 'base':8,22,56,77 'base-network' 'behind':40 'broader':90 'call':73,100 'captur':213 'categori':144 'challeng':212 'confirm':209 'connect':171 'content':177 'contract':60 'data':103,108 'decim':84 'describ':190 'doc':162 'document':151,189,221 'emphas':122 'employe':4,18,35 'employee salary API' 'employee-salary-data' 'endpoint':6,20,30,136,193,207 'equal':85 'exact':66 'exampl':186 'expect':200 'expos':33 'finance/web3':107 'gate':3,17 'howev':132 'infer':106 'infrastructur':110 'input':198 'instant':130 'integr':223 'json':50 'json-response' 'key':125 'lack':216 'land':147 'limit':128 'list':139 'live':210 'lowpaymentfee' 'lowpaymentfee.com':32,91 'make':222 'maximum':69 'network':57 'openapi':182 'page':148,166 'pay':10,24,98 'pay-per-cal':97 'pay-per-request':9,23 'payment':51 'payroll data endpoint' 'paywal':43 'per':11,25,72,87,99 'platform':92,121 'point':119 'post':46 'practic':202 'price':118,163 'prompt':173 'rate':127 'request':12,26,47,88,152 'request/response':185 'requir':71 'resourc':37 'respons':155 'return':49,168,195 'salari':5,19,36 'salary lookup' 'schema':153,156,219 'scheme':67 'settl':53 'span':102 'spec':183 'specif':134 'specul':224 'unclear':205 'unit':78 'usdc':14,28,59,80 'usdc-settlement' 'use':58 'util':111,203 'varieti':95 'via':63 'wallet':172 'x402':2,16,42,65 'x402 paid API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"c12e5eb8-fc16-4cf3-97df-b24b4f078e1c","listingId":"7b309e58-cbca-408a-9a5e-b42184675699","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/53/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":"2026-04-21T18:32:16.974Z"}],"sources":[{"listingId":"7b309e58-cbca-408a-9a5e-b42184675699","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/53/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:16.974Z","lastSeenAt":"2026-04-23T04:32:04.191Z"}],"details":{"listingId":"7b309e58-cbca-408a-9a5e-b42184675699","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/53/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 challenge with x402Version 1, exact scheme, on Base network using USDC at maxAmountRequired 20000 base units","source_url":"https://lowpaymentfee.com/api/v1/employees/53/salary"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/53/salary"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, pricing, and API pages returned only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving salary information for a specific employee record","Demonstrating x402 pay-per-call payment flows on Base","Integrating micropayment-gated data access into agent workflows"],"bestFor":["Developers experimenting with x402 payment protocol","Agents that need pay-per-call data access without API keys","Testing USDC micropayment integrations on Base"],"notFor":["Production payroll systems requiring documented, stable APIs","Users needing bulk employee data exports","Anyone requiring detailed API documentation before integration"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:14.372Z"},"updatedAt":"2026-04-23T04:32:04.191Z"}}