{"id":"f1a50ef8-900a-439c-b907-fec2d19062b1","shortId":"Ptdngp","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 records via the x402 payment protocol. The specific resource `/api/v1/employees/12` returns JSON data for employee ID 12 when called with a POST request and a valid X-PAYMENT header containing a USDC micropayment on the Base network.\n\nThe endpoint is part of a broader platform (lowpaymentfee.com) that offers dozens of pay-per-call APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request. Payment is handled entirely via the x402 protocol: no API keys, no accounts, no rate limits. The caller attaches a cryptographic payment proof in the request header, and the server validates it before returning the response.\n\nThe x402 challenge confirms the endpoint is live on the Base L2 network, accepting USDC (contract 0x8335…2913) with a max amount of 20,000 base units (i.e., $0.02 given USDC's 6 decimals). Payments are directed to address 0x1A2B…85F3 with a 300-second timeout. Documentation on the site is extremely thin — the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further content — so the exact schema of the employee record returned is unknown.","tags":[],"capabilities":["x402-payment","usdc-micropayment","base-network","employee-data","pay-per-call","no-api-key","json-response"],"categories":["data","infrastructure"],"synonyms":["employee API","employee record lookup","x402 employee endpoint","micropayment API","USDC pay-per-call","lowpaymentfee API","Base network API","402 payment API"],"warnings":["No documentation available — docs, pricing, and API pages render only a wallet-connect prompt","No response schema or example response is provided; the structure of the returned employee data is unknown","The /api/v1/employees/12 path is not listed among the advertised APIs on the homepage, raising questions about whether this is an official or test endpoint","The broader platform lists many API categories but none appear to be employee-data related"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/12","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/12","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live via a valid 402 challenge with clear pricing and network details. However, documentation is essentially absent — docs/pricing/API pages all show only 'Connect wallet'. There is no OpenAPI schema, no example responses, and no description of what fields the employee record contains. The endpoint path itself (/employees/12) is not listed on the homepage's API catalog, making it unclear whether this is a demo or production 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'/request':17,34 '0.02':16,33,114,181 '000':177 '0x1a2b':192 '0x8335':169 '12':60 '20':176 '2913':170 '300':196 '402 payment API' '6':185 '85f3':193 'Base network API' 'USDC pay-per-call' 'accept':166 'access':40 'account':129 'address':191 'ai':103 'amount':174 'analyt':102 'api':7,24,99,126,210 'attach':135 'base':9,26,80,163,178 'base-network' 'broader':88 'call':4,21,62,98 'caller':134 'challeng':155 'confirm':156 'connect':216 'contain':74 'content':222 'contract':168 'cryptograph':137 'data':6,23,43,56,101 'decim':186 'direct':189 'doc':207 'document':199 'dozen':93 'employe':5,22,42,58,229 'employee API' 'employee record lookup' 'employee-data' 'endpoint':36,83,158 'entir':120 'exact':225 'extrem':204 'financ':106 'given':182 'handl':119 'header':73,143 'i.e':180 'id':59 'infrastructur':109 'json':55 'json-response' 'key':127 'l2':164 'learn':105 'limit':132 'live':160 'lowpaymentfee API' 'lowpaymentfee.com':38,90 'machin':104 'max':173 'micropay':77 'micropayment API' 'network':81,165 'no-api-key' 'offer':92 'page':211 'part':85 'pay':2,19,96 'pay-per-cal':1,18,95 'pay-per-call' 'payment':48,72,117,138,187 'per':3,20,97,115 'platform':89 'post':65 'price':112,208 'prompt':218 'proof':139 'protocol':49,124 'provid':39 'rate':131 'record':44,230 'render':213 'request':66,116,142 'resourc':52 'respons':152 'return':54,150,231 'schema':226 'second':197 'server':146 'settl':12,29 'site':202 'span':100 'specif':51 'thin':205 'timeout':198 'unit':179 'unknown':233 'usdc':14,31,76,167,183 'usdc-micropayment' 'util':110 'valid':69,147 'via':10,27,45,121 'wallet':217 'web3':107 'x':71 'x-payment':70 'x402':11,28,47,123,154 'x402 employee endpoint' 'x402-payment'","prices":[{"id":"ba013e8c-a725-46ec-9d00-2673f3993627","listingId":"f1a50ef8-900a-439c-b907-fec2d19062b1","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/12","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:13.726Z"}],"sources":[{"listingId":"f1a50ef8-900a-439c-b907-fec2d19062b1","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/12","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:13.726Z","lastSeenAt":"2026-04-22T21:32:01.808Z"}],"details":{"listingId":"f1a50ef8-900a-439c-b907-fec2d19062b1","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/12 \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\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 requesting USDC on Base with maxAmountRequired of 20000 base units ($0.02)","source_url":"https://lowpaymentfee.com/api/v1/employees/12"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on the Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC contract address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/12"},{"claim":"Docs, pricing, and API pages show only a 'Connect wallet' prompt with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee records on-demand without managing API keys or subscriptions","Integrating employee data lookups into autonomous agent workflows that settle payments in USDC","Demonstrating x402 protocol micropayment flows in a development or testing context"],"bestFor":["Developers experimenting with x402 payment protocol integrations","Agents or bots that need keyless, pay-per-call data access on Base","Low-volume, on-demand employee data retrieval without subscription overhead"],"notFor":["High-volume bulk employee data exports (no documented batch endpoint)","Users who need detailed API documentation or response schema guarantees before integrating","Anyone without a Base-network USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:18.866Z"},"updatedAt":"2026-04-22T21:32:01.808Z"}}