{"id":"17bda434-aad6-41c8-a143-db0faf9d2e22","shortId":"PeFNHQ","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/48` returns JSON data for employee ID 48 when a valid USDC micro-payment is submitted on the Base network. The endpoint accepts POST requests and requires an X-PAYMENT header containing the x402 payment proof.\n\nThe endpoint is part of a broader platform (lowpaymentfee.com) that offers numerous pay-per-call APIs spanning 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; payment is the only authentication mechanism.\n\nThe x402 challenge confirms the endpoint is live, accepting payments in USDC (contract 0x8335…2913) on Base mainnet. The maximum amount required is 20,000 base units, which at 6 decimals for USDC equals $0.02. The payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a timeout of 300 seconds. No OpenAPI schema or detailed documentation was found beyond the landing page listing; the actual response schema for the employee record is not documented.","tags":[],"capabilities":["x402-payment","usdc-base","employee-data","pay-per-call","no-api-key","json-response"],"categories":["data"],"synonyms":["employee record API","staff data endpoint","HR data API","x402 employee lookup","pay-per-request data","lowpaymentfee API","Base USDC API"],"warnings":["No OpenAPI or response schema available — the structure of the employee data response is undocumented.","Documentation pages (/docs, /api, /pricing, /README) all returned only a 'Connect wallet' stub with no useful content.","The nature and source of the employee data is unclear — it may be sample/demo data rather than a production dataset."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/48","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/48","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no response examples, and no documentation beyond a sparse landing page. The employee data endpoint's actual response structure is entirely 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'/request':17,34 '0.02':16,33,122,177 '000':167 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':184 '0x8335':156 '20':166 '2913':157 '300':189 '48':60 '6':172 'Base USDC API' 'HR data API' 'accept':76,151 'access':40,136 'actual':205 'address':183 'advertis':127 'ai':111 'amount':163 'analyt':110 'api':7,24,107,129 'authent':141 'base':9,26,72,159,168 'beyond':199 'broader':97 'call':4,21,106 'challeng':145 'confirm':146 'contain':86 'contract':155 'data':6,23,43,56,109 'decim':173 'detail':195 'document':196,214 'employe':5,22,42,58,210 'employee record API' 'employee-data' 'endpoint':36,75,92,148 'equal':176 'financ':114 'found':198 'header':85 'id':59 'infrastructur':117 'instant':135 'json':55 'json-response' 'key':130 'land':201 'learn':113 'limit':133 'list':203 'live':150 'lowpaymentfee API' 'lowpaymentfee.com':38,99 'machin':112 'mainnet':160 'maximum':162 'mechan':142 'micro':66 'micro-pay':65 'network':73 'no-api-key' 'numer':102 'offer':101 'openapi':192 'page':202 'part':94 'pay':2,19,104 'pay-per-cal':1,18,103 'pay-per-call' 'pay-per-request data' 'payment':48,67,84,89,137,152,179 'per':3,20,105,123 'platform':98,126 'post':77 'price':120 'proof':90 'protocol':49 'provid':39 'rate':132 'record':44,211 'request':78,124 'requir':80,164 'resourc':52 'respons':206 'return':54 'schema':193,207 'second':190 'sent':181 'settl':12,29 'span':108 'specif':51 'staff data endpoint' 'submit':69 'timeout':187 'unit':169 'usdc':14,31,64,154,175 'usdc-base' 'util':118 'valid':63 'via':10,27,45 'web3':115 'x':83 'x-payment':82 'x402':11,28,47,88,144 'x402 employee lookup' 'x402-payment'","prices":[{"id":"45447920-b856-493c-b73e-be931655a9ad","listingId":"17bda434-aad6-41c8-a143-db0faf9d2e22","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/48","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:16.850Z"}],"sources":[{"listingId":"17bda434-aad6-41c8-a143-db0faf9d2e22","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/48","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:16.850Z","lastSeenAt":"2026-04-24T12:04:39.085Z"}],"details":{"listingId":"17bda434-aad6-41c8-a143-db0faf9d2e22","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/48 \\\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 endpoint returns a 402 challenge requiring USDC payment of 20,000 base units ($0.02) on Base network.","source_url":"https://lowpaymentfee.com/api/v1/employees/48"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access.","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.","source_url":"https://lowpaymentfee.com/api/v1/employees/48"}],"useCases":["Retrieving individual employee records on demand without managing API keys","Integrating employee data lookups into agent workflows that settle payments automatically via x402","Prototyping pay-per-call data access patterns on Base network"],"bestFor":["Developers experimenting with x402 payment-gated APIs","Agents that can autonomously settle USDC payments on Base","Low-volume, on-demand employee data retrieval"],"notFor":["Bulk employee data exports requiring thousands of records at once","Use cases requiring detailed OpenAPI documentation or guaranteed SLAs","Users who cannot transact in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:14.592Z"},"updatedAt":"2026-04-24T12:04:39.085Z"}}