{"id":"169850e4-1374-497a-a365-1bc9f18cb580","shortId":"6YeDfa","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 31) 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 each request.\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 sits under what appears to be a sample or demo HR/employee data resource. No OpenAPI schema, request body specification, or response schema documentation was found beyond the x402 challenge itself, so the exact input parameters and response structure are unknown.\n\nThe endpoint is live and returns a valid x402 challenge (HTTP 402) with x402Version 1, accepting the \"exact\" payment scheme on Base mainnet to USDC contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. The maximum amount required is 20,000 base units, which at 6 decimals equals $0.02 USD per call. Timeout is 300 seconds.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","pay-per-call","no-api-key","json-response"],"categories":["data","finance"],"synonyms":["employee salary API","payroll data endpoint","HR data API","x402 paid API","USDC micropayment API","lowpaymentfee","Base network API"],"warnings":["No request body schema or response schema documented anywhere","Docs, pricing, and README pages return only a 'Connect wallet' prompt with no usable content","The endpoint path suggests HR/employee data but no context on data source, accuracy, or whether this is sample/demo data","No OpenAPI or ai-plugin manifest available"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/31/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/31/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 and returns a valid x402 challenge, but there is no OpenAPI schema, no documented request/response format, no examples, and the docs/pricing/README pages all render only a wallet-connect prompt. The specific purpose of this employee salary endpoint is unclear beyond its URL 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'000':199 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':192 '1':180 '20':198 '300':213 '31':47 '402':177 '6':204 'Base network API' 'HR data API' 'USDC micropayment API' 'accept':181 'access':82 'ai/ml':110 'amount':195 'analyt':109 'api':74,106 'appear':129 'attach':85 'base':10,25,57,187,200 'base-network' 'beyond':151 'bodi':143 'broad':99 'call':4,19,105,210 'caller':83 'catalog':100 'challeng':154,175 'coin':62 'contract':191 'cost':65 'data':7,22,108,137 'decim':205 'demo':135 'document':148 'employe':5,20,39,45 'employee salary API' 'employee-data' 'enabl':34 'endpoint':8,23,35,71,125,167 'equal':206 'exact':158,183 'finance/web3':112 'found':150 'header':89 'host':94 'hr/employee':136 'http':176 'id':46 'infer':111 'inform':41 'infrastructur':114 'input':159 'instant':81 'json-response' 'key':75 'limit':78 'live':169 'lowpaymentfee' 'lowpaymentfee.com':37,96 'mainnet':188 'maximum':194 'network':58 'no-api-key' 'offer':97 'openapi':140 'paramet':160 'particular':124 'pay':2,17,103 'pay-per-cal':1,16,102 'pay-per-call' 'payment':52,88,184 'payroll data endpoint' 'per':3,18,68,104,121,209 'post':50 'price':117 'provid':80 'rate':77 'request':51,69,92,122,142 'requir':72,196 'resourc':138 'respons':146,162 'return':38,171 'salari':6,21,40 'sampl':133 'schema':141,147 'scheme':185 'second':214 'settl':13,28,54 'simpli':84 'sit':126 'site':95 'span':107 'specif':44,144 'structur':163 'timeout':211 'uniform':118 'unit':201 'unknown':165 'usd':61,208 'usdc':15,30,60,190 'usdc-settlement' 'use':59 'util':115 'valid':173 'via':11,26,48 'x402':12,27,33,87,153,174 'x402 paid API' 'x402-enabled':32 'x402-payment' 'x402version':179","prices":[{"id":"b0f7a4a7-10d8-4996-af0c-4d981104227f","listingId":"169850e4-1374-497a-a365-1bc9f18cb580","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/31/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":"2026-04-21T18:32:16.228Z"}],"sources":[{"listingId":"169850e4-1374-497a-a365-1bc9f18cb580","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/31/salary","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:16.228Z","lastSeenAt":"2026-04-23T06:05:07.730Z"}],"details":{"listingId":"169850e4-1374-497a-a365-1bc9f18cb580","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/31/salary \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns HTTP 402 with x402 challenge on Base network using USDC","source_url":"https://lowpaymentfee.com/api/v1/employees/31/salary"},{"claim":"All APIs priced at $0.02 per request with no API keys, no rate limits, instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/31/salary"},{"claim":"maxAmountRequired is 20000 base units (6 decimals = $0.02)","source_url":"https://lowpaymentfee.com/api/v1/employees/31/salary"}],"useCases":["Retrieving salary information for a specific employee record","Demonstrating x402 payment protocol integration with USDC on Base","Building pay-per-call data access workflows without API key management"],"bestFor":["Developers experimenting with x402 payment protocol","Agents needing on-demand employee/salary data without subscription","Projects requiring keyless, pay-as-you-go API access on Base"],"notFor":["Bulk payroll data retrieval (single-employee endpoint, no batch support documented)","Production HR systems requiring authenticated, auditable access controls","Users who need detailed API documentation or response schema guarantees"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:15.346Z"},"updatedAt":"2026-04-23T06:05:07.730Z"}}