{"id":"6814899a-478d-402c-b9ca-fec134588051","shortId":"3dUyZA","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/20` returns JSON data for employee ID 20, gated behind a per-request USDC micropayment on the Base network. The x402 challenge confirms the endpoint is live and accepts exact-scheme payments.\n\nThe provider, lowpaymentfee.com, hosts a broad catalog of pay-per-call APIs spanning data & analytics, AI/ML inference (sentiment, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request, payable in USDC on Base with no API keys, no rate limits, and no minimum commitments.\n\nThe probed endpoint specifically charges a maximum of 20,000 base units of USDC (asset 0x8335…2913 on Base, 6 decimals), which equals $0.02 per call. Payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout. The response MIME type is application/json. No OpenAPI schema, detailed documentation, or example responses were found in the crawl — the docs, pricing, and API pages all rendered only a \"Connect wallet\" prompt with no additional content.","tags":[],"capabilities":["x402-payment","usdc-base","employee-data","per-request-micropayment","json-response","no-api-key"],"categories":["data"],"synonyms":["employee API","employee record lookup","staff data endpoint","HR data API","personnel API","lowpaymentfee","x402 employee endpoint","micropayment data API"],"warnings":["No OpenAPI or schema documentation available — request and response formats are unknown","Docs, pricing, and API pages render only 'Connect wallet' with no substantive content","The employee data endpoint's fields, filtering options, and error handling are undocumented","It is unclear whether this is sample/demo data or a production data source"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/20","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/20","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 confirms pricing and payment details, but there is no OpenAPI schema, no documented request/response format, no example payloads, and the docs/pricing/API pages are empty beyond a wallet-connect prompt. The endpoint's actual data shape and fields are entirely 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'/request':17,34 '0.02':16,33,131,173 '000':159 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':181 '0x8335':165 '20':60,158 '2913':166 '300':184 '6':169 'HR data API' 'accept':82 'access':40 'addit':221 'address':180 'ai/ml':103 'analyt':102 'api':7,24,99,141,210 'application/json':192 'asset':164 'base':9,26,71,138,160,168 'behind':62 'broad':92 'call':4,21,98,175 'catalog':93 'challeng':75 'charg':154 'classif':107 'commit':149 'confirm':76 'connect':216 'content':222 'convers':124 'crawl':205 'data':6,23,43,56,101 'decim':170 'detail':196 'doc':207 'document':197 'embed':108 'employe':5,22,42,58 'employee API' 'employee record lookup' 'employee-data' 'endpoint':36,78,127,152 'equal':172 'estim':118 'exact':84 'exact-schem':83 'exampl':199 'exchang':113 'feed':112 'financ':109 'found':202 'gas':117 'gate':61 'generat':125 'geocod':122 'host':90 'id':59 'infer':104 'infrastructur':120 'json':55 'json-response' 'key':142 'limit':145 'list':129 'live':80 'lowpaymentfee' 'lowpaymentfee.com':38,89 'maximum':156 'micropay':68 'micropayment data API' 'mime':189 'minimum':148 'network':72 'no-api-key' 'openapi':194 'page':211 'pay':2,19,96 'pay-per-cal':1,18,95 'payabl':134 'payment':48,86,176 'per':3,20,65,97,132,174 'per-request':64 'per-request-micropayment' 'personnel API' 'price':111,208 'probe':151 'prompt':218 'protocol':49 'provid':39,88 'quot':116 'rate':114,144 'record':44 'render':213 'request':66,133 'resourc':52 'respons':188,200 'return':54 'schema':195 'scheme':85 'second':185 'sent':178 'sentiment':105 'settl':12,29 'span':100 'specif':51,153 'staff data endpoint' 'summar':106 'timeout':186 'token':115 'type':190 'unit':161 'usdc':14,31,67,136,163 'usdc-base' 'util':121 'valid':123 'via':10,27,45 'wallet':217 'web3':110 'x402':11,28,47,74 'x402 employee endpoint' 'x402-payment'","prices":[{"id":"9380b4b5-98bd-4b08-90b6-6a06dd481acf","listingId":"6814899a-478d-402c-b9ca-fec134588051","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/20","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:16.091Z"}],"sources":[{"listingId":"6814899a-478d-402c-b9ca-fec134588051","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/20","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:16.091Z","lastSeenAt":"2026-04-24T16:32:47.163Z"}],"details":{"listingId":"6814899a-478d-402c-b9ca-fec134588051","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/20 \\\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 HTTP 402 with an x402 challenge advertising USDC payment on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/20"},{"claim":"maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02","source_url":"https://lowpaymentfee.com/api/v1/employees/20"},{"claim":"All listed APIs are priced at $0.02/request with no API keys, no rate limits, and instant access on Base","source_url":"https://lowpaymentfee.com"},{"claim":"The provider offers APIs across data & analytics, AI/ML, finance & Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving individual employee records by ID for HR or payroll integrations","Agent-driven data lookups that pay per call without pre-registration","Demonstrating x402 micropayment flows on the Base network"],"bestFor":["Developers experimenting with x402 payment-gated APIs","Agents needing on-demand employee data without API key management","Low-volume, pay-as-you-go data retrieval"],"notFor":["Bulk employee data exports or batch processing (single-record endpoint)","Users without a Base-network USDC wallet","Production HR systems requiring authenticated, auditable access controls"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:15.644Z"},"updatedAt":"2026-04-24T16:32:47.163Z"}}