{"id":"bbff732d-d2e3-4fd3-a9f3-4949c85537de","shortId":"AWk5DP","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/34/salary` behind an x402 paywall. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of $0.02 per request (20,000 base units at 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.\n\nThe provider site (lowpaymentfee.com) advertises a broad catalog of x402-gated APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities, all priced uniformly at $0.02 per call. However, this specific endpoint (`/api/v1/employees/34/salary`) is not listed on the provider's landing page among the advertised APIs. Its purpose — retrieving or computing salary information for employee ID 34 — is inferred solely from the URL path and the generic \"Premium API Access\" description in the x402 challenge. No request body schema, response schema, or documentation is available for this endpoint.\n\nBecause there is no OpenAPI spec, no example request/response, and no dedicated documentation beyond the 402 challenge itself, the actual data returned and the expected POST body remain unknown. The endpoint is confirmed live (402 challenge captured successfully), but consumers should treat it as experimental until more documentation surfaces.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-salary-data","pay-per-request","no-api-key"],"categories":["data","finance"],"synonyms":["employee salary API","payroll endpoint","salary lookup","x402 paywall API","USDC micropayment API","lowpaymentfee"],"warnings":["No documentation or schema available for this specific endpoint","Endpoint /api/v1/employees/34/salary is not listed on the provider's landing page catalog","Request body format and response structure are completely unknown","Hardcoded employee ID (34) in the URL suggests this may be a demo or test endpoint"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/34/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/34/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, confirming pricing and network. However, there is no OpenAPI spec, no request/response schema, no documentation, and the endpoint is not listed among the provider's advertised APIs. The actual purpose and data format are entirely inferred from the URL 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'0.02':68,126 '000':72 '0x8335':61 '20':71 '2913':62 '34':157 '402':204,223 '6':76 'USDC micropayment API' 'accept':45 'access':170 'actual':208 'advertis':104,145 'ai/ml':116 'among':143 'analyt':115 'api':79,112,146,169 'attach':88 'avail':185 'base':8,22,56,73 'base-network' 'behind':40 'beyond':202 'bodi':178,215 'broad':106 'call':128 'caller':86 'captur':225 'catalog':107 'challeng':175,205,224 'comput':151 'confirm':221 'consum':228 'contract':60 'cost':66 'data':114,209 'decim':77 'dedic':200 'descript':171 'document':183,201,236 'employe':4,18,35,155 'employee salary API' 'employee-salary-data' 'endpoint':6,20,30,132,188,219 'exampl':196 'expect':213 'experiment':233 'expos':33 'finance/web3':118 'gate':3,17,111 'generic':167 'header':93 'howev':129 'id':156 'infer':117,159 'inform':153 'infrastructur':120 'json':50 'key':80 'land':141 'limit':83 'list':136 'live':222 'lowpaymentfee' 'lowpaymentfee.com':32,103 'maximum':65 'network':57 'no-api-key' 'openapi':193 'page':142 'path':164 'pay':10,24 'pay-per-request':9,23 'payment':51,92,98 'payroll endpoint' 'paywal':43 'per':11,25,69,127 'post':46,214 'premium':168 'price':123 'proof':99 'provid':101,139 'purpos':148 'rate':82 'remain':216 'request':12,26,47,70,177 'request/response':197 'requir':85 'resourc':37 'respons':180 'retriev':149 'return':49,210 'salari':5,19,36,152 'salary lookup' 'schema':179,181 'settl':53 'simpli':87 'site':102 'sole':160 'span':113 'spec':194 'specif':131 'success':226 'surfac':237 'treat':230 'uniform':124 'unit':74 'unknown':217 'url':163 'usdc':14,28,59 'usdc-settlement' 'use':58 'util':121 'valid':96 'x':91 'x-payment':90 'x402':2,16,42,97,110,174 'x402 paywall API' 'x402-gated':1,15,109 'x402-payment'","prices":[{"id":"9982a857-0766-4552-be28-a071d1019f26","listingId":"bbff732d-d2e3-4fd3-a9f3-4949c85537de","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/34/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":"2026-04-21T18:32:16.321Z"}],"sources":[{"listingId":"bbff732d-d2e3-4fd3-a9f3-4949c85537de","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/34/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:16.321Z","lastSeenAt":"2026-04-23T06:05:07.825Z"}],"details":{"listingId":"bbff732d-d2e3-4fd3-a9f3-4949c85537de","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/34/salary \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The x402 challenge returns maxAmountRequired of 20000 in USDC (6 decimals) on Base, equaling $0.02 per request","source_url":"https://lowpaymentfee.com/api/v1/employees/34/salary"},{"claim":"The provider advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/34/salary"}],"useCases":["Retrieving salary data for a specific employee via a pay-per-call model","Integrating employee compensation data into payroll or HR workflows","Agent-driven lookups of salary information without pre-registration"],"bestFor":["Developers exploring x402 pay-per-request patterns on Base","Agents needing on-demand salary data without API key management","Quick one-off salary lookups at low cost ($0.02)"],"notFor":["Production HR systems requiring documented, stable schemas and SLAs","Bulk payroll processing across many employees (only employee 34 is addressed by this URL)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:15.342Z"},"updatedAt":"2026-04-23T06:05:07.825Z"}}