{"id":"90d7503a-6266-4c32-99cb-1be90cb1a6f0","shortId":"vGdgA5","kind":"x402","title":"Pay-per-call employee data API on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call employee data API on Base via x402, settled in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides access to employee data (specifically employee record #155) via the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of 20,000 base units, which equals $0.02 per request (USDC uses 6 decimals).\n\nThe endpoint is part of a broader platform (lowpaymentfee.com) that offers multiple API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities — all priced at $0.02 per request. The platform advertises no API keys, no rate limits, and instant access. All payments flow through the x402 protocol on the Base L2 network.\n\nDocumentation is extremely sparse. The crawled /docs, /api, /pricing, and /README pages all returned only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI spec, no request/response schema documentation, and no explanation of what fields the employee record contains or what input parameters the POST body expects. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data contract is unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","json-response","pay-per-call","no-api-key"],"categories":["data"],"synonyms":["employee API","employee record lookup","x402 data endpoint","pay-per-request API","USDC micropayment API","lowpaymentfee","Base network API"],"warnings":["No documentation available — all doc pages return only a 'Connect wallet' prompt with no content","No OpenAPI or schema definition; request body format and response structure are unknown","The specific endpoint path (/api/v1/employees/155) suggests a hardcoded resource ID; unclear if this is a demo or production data","No information about what 'employee' data is served or its source"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/155","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/155","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 with clear pricing, but there is no documentation, no OpenAPI spec, no request/response schema, and no examples. The crawled docs pages are all empty stubs. The actual data contract (what fields are returned, what POST body is expected) is completely 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'/docs':151 '/pricing':153 '/readme':155 '/request':17,34 '0.02':16,33,83,118 '000':78 '0x8335':70 '155':47 '20':77 '2913':71 '402':203 '6':88 'Base network API' 'USDC micropayment API' 'accept':54 'access':40,132 'actual':207 'advertis':123 'ai':107 'analyt':106 'api':7,24,102,125 'base':9,26,65,79,142 'base-network' 'bodi':193 'broader':96 'call':4,21 'categori':103 'challeng':204 'confirm':198 'connect':161 'contain':186 'content':167 'contract':69,209 'cost':75 'crawl':150 'data':6,23,43,105,208 'decim':89 'document':145,176 'employe':5,22,42,45,184 'employee API' 'employee record lookup' 'employee-data' 'endpoint':36,91,196 'equal':82 'expect':194 'explan':179 'extrem':147 'field':182 'financ':110 'flow':135 'includ':104 'infrastructur':113 'input':189 'instant':131 'json':59 'json-response' 'key':126 'l2':143 'learn':109 'limit':129 'live':199 'lowpaymentfee' 'lowpaymentfee.com':38,98 'machin':108 'maximum':74 'multipl':101 'network':66,144 'no-api-key' 'offer':100 'openapi':171 'page':156 'paramet':190 'part':93 'pay':2,19 'pay-per-cal':1,18 'pay-per-call' 'pay-per-request API' 'payment':51,60,134 'per':3,20,84,119 'platform':97,122 'post':55,192 'price':116 'prompt':163 'proper':202 'protocol':52,139 'provid':39 'rate':128 'record':46,185 'request':56,85,120 'request/response':174 'return':58,158,200 'schema':175 'settl':12,29,62 'spars':148 'spec':172 'specif':44 'substant':166 'unit':80 'unknown':211 'usdc':14,31,68,86 'usdc-settlement' 'use':67,87 'util':114 'via':10,27,48 'wallet':162 'web3':111 'x402':11,28,50,138 'x402 data endpoint' 'x402-payment'","prices":[{"id":"dca6be0a-4063-4ce0-906c-18002d1e624e","listingId":"90d7503a-6266-4c32-99cb-1be90cb1a6f0","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/155","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:14.750Z"}],"sources":[{"listingId":"90d7503a-6266-4c32-99cb-1be90cb1a6f0","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/155","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.750Z","lastSeenAt":"2026-04-25T01:33:25.249Z"}],"details":{"listingId":"90d7503a-6266-4c32-99cb-1be90cb1a6f0","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/155 \\\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 endpoint returns a 402 challenge with maxAmountRequired of 20000 base units in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/155"},{"claim":"Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/155"}],"useCases":["Retrieving employee record data on a per-call payment basis without needing an API key","Agent-driven workflows that need to fetch structured employee information and can pay per request via x402","Demonstrating x402 protocol integration for micropayment-gated REST APIs"],"bestFor":["Developers experimenting with x402 payment protocol on Base","Agents that need keyless, pay-per-call access to data endpoints","Use cases where $0.02/request micropayments are preferable to subscription billing"],"notFor":["Production systems requiring documented request/response schemas and SLAs","Bulk employee data retrieval where per-call pricing would be cost-prohibitive","Users without USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:17.526Z"},"updatedAt":"2026-04-25T01:33:25.249Z"}}