{"id":"4ccbc9e0-610f-494a-a3e6-514d36064716","shortId":"pR6jN7","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/123` returns JSON data for employee ID 123 when called with a POST request and a valid X-PAYMENT header containing a USDC payment on the Base network. The cost is $0.02 per request (20,000 base units of USDC with 6 decimals).\n\nThe broader lowpaymentfee.com platform hosts a collection of pay-per-call APIs spanning data & analytics, AI & machine learning (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are priced uniformly at $0.02 per request, require no API keys or rate limits, and settle payments in USDC on the Base L2 network using the x402 exact payment scheme.\n\nDocumentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no detailed description of what the employee endpoint actually returns. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data payload and input parameters remain unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","pay-per-call","no-api-key","json-response"],"categories":["data","api-infrastructure"],"synonyms":["employee API","staff data endpoint","HR data API","x402 employee lookup","pay-per-request API","USDC API","Base network API","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","All documentation pages (/docs, /api, /pricing, /README) render only 'Connect wallet' with no content","The specific data returned by /api/v1/employees/123 is undocumented; it is unclear whether this is real employee data or a demo/test endpoint","No information on what input parameters (if any) the POST body accepts"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/123","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/123","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 402 challenge, confirming pricing and payment details. However, there is no OpenAPI schema, no request/response examples, and documentation pages are empty stubs. The actual data returned by the employee endpoint is completely undocumented, making this effectively a stub 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'/api/v1/employees/123':53 '/docs':179 '/pricing':181 '/readme':183 '/request':17,34 '0.02':16,33,85,144 '000':89 '123':60 '20':88 '402':223 '6':95 'Base network API' 'HR data API' 'USDC API' 'access':40 'actual':213,227 'ai':113 'analysi':117 'analyt':112 'api':7,24,109,149 'base':9,26,80,90,161 'base-network' 'beyond':171 'broader':98 'call':4,21,62,108 'challeng':224 'classif':119 'collect':103 'confirm':218 'connect':189 'contain':74 'content':195 'convers':136 'cost':83 'data':6,23,43,56,111,228 'decim':96 'descript':207 'detail':206 'document':170 'embed':120 'employe':5,22,42,58,211 'employee API' 'employee-data' 'endpoint':36,139,212,216 'estim':130 'exact':167 'exampl':203 'exchang':125 'extrem':176 'feed':124 'financ':121 'gas':129 'generat':137 'geocod':134 'header':73 'host':101 'id':59 'infrastructur':132 'input':231 'json':55 'json-response' 'key':150 'l2':162 'land':173 'learn':115 'limit':153 'live':219 'lowpaymentfee' 'lowpaymentfee.com':38,99 'machin':114 'network':81,163 'no-api-key' 'openapi':199 'page':174,184 'paramet':232 'pay':2,19,106 'pay-per-cal':1,18,105 'pay-per-call' 'pay-per-request API' 'payload':229 'payment':48,72,77,156,168 'per':3,20,86,107,145 'platform':100 'post':65 'price':123,141 'prompt':191 'proper':222 'protocol':49 'provid':39 'quot':128 'rate':126,152 'record':44 'remain':233 'render':186 'request':66,87,146 'request/response':202 'requir':147 'resourc':52 'return':54,214,220 'schema':200 'scheme':169 'sentiment':116 'settl':12,29,155 'span':110 'spars':177 'specif':51 'staff data endpoint' 'substant':194 'summar':118 'token':127 'uniform':142 'unit':91 'unknown':234 'usdc':14,31,76,93,158 'usdc-settlement' 'use':164 'util':133 'valid':69,135 'via':10,27,45 'wallet':190 'web3':122 'x':71 'x-payment':70 'x402':11,28,47,166 'x402 employee lookup' 'x402-payment'","prices":[{"id":"bdddbe03-bdac-4dc2-bbfe-8c69df9e0170","listingId":"4ccbc9e0-610f-494a-a3e6-514d36064716","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/123","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:14.074Z"}],"sources":[{"listingId":"4ccbc9e0-610f-494a-a3e6-514d36064716","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/123","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.074Z","lastSeenAt":"2026-04-25T05:33:45.877Z"}],"details":{"listingId":"4ccbc9e0-610f-494a-a3e6-514d36064716","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/123 \\\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":"Endpoint returns 402 with x402 challenge requiring USDC payment on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/123"},{"claim":"maxAmountRequired is 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913), equaling $0.02","source_url":"https://lowpaymentfee.com/api/v1/employees/123"},{"claim":"All APIs priced at $0.02/request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Platform offers APIs across data & analytics, AI & ML, finance & Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving employee records by ID with per-call USDC micropayments","Integrating employee data into agent workflows without API key management","On-demand HR data access with no subscription commitment"],"bestFor":["Agents or services needing one-off employee data lookups without signup","Developers testing x402 payment protocol integrations","Use cases requiring keyless, pay-as-you-go API access on Base"],"notFor":["Bulk employee data exports or high-volume batch processing (no documented batch endpoint)","Users who need detailed API documentation or response schema guarantees before integrating","Non-crypto users who cannot settle payments in USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:18.401Z"},"updatedAt":"2026-04-25T05:33:45.877Z"}}