{"id":"9a4d14a9-4571-45c5-8bfd-0e6fc95f13f8","shortId":"BKgX5E","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 #81) 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 provider lowpaymentfee.com hosts a broad catalog of pay-per-call APIs spanning data & analytics, AI/ML (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 with no API keys, no rate limits, and no minimum commitments. Payments are made inline via the x402 protocol's X-PAYMENT header.\n\nThis specific endpoint (/api/v1/employees/81) is not listed on the provider's landing page among the advertised API categories, so its exact response schema and data source are unclear. The 402 challenge confirms it is live and accepting payment, but no documentation, OpenAPI spec, or example responses were found for this particular resource. The endpoint's description in the x402 challenge is simply \"Premium API Access,\" which is generic and does not clarify the data returned.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","pay-per-call","no-api-key","json-response"],"categories":["data"],"synonyms":["employee API","employee record lookup","x402 API","pay-per-request API","USDC micropayment API","lowpaymentfee","Base network API"],"warnings":["No OpenAPI or schema documentation available for this endpoint","Endpoint /api/v1/employees/81 is not listed on the provider's landing page among advertised APIs","No example responses found; actual data returned is unknown","Docs, pricing, API, and README pages all rendered only 'Connect wallet' with no useful content"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/81","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/81","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no documentation, no example request/response, and the endpoint is not listed among the provider's advertised APIs. The response schema and purpose of the employee data are entirely 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'/request':17,34 '0.02':16,33,83,135 '000':78 '0x8335':70 '20':77 '2913':71 '402':191 '6':88 '81':47 'Base network API' 'USDC micropayment API' 'accept':54,198 'access':40,226 'advertis':177 'ai/ml':106 'among':175 'analysi':108 'analyt':105 'api':7,24,102,140,178,225 'base':9,26,65,79 'base-network' 'broad':95 'call':4,21,101 'catalog':96 'categori':179 'challeng':192,221 'clarifi':233 'classif':110 'commit':148 'confirm':193 'contract':69 'convers':127 'cost':75 'data':6,23,43,104,186,235 'decim':89 'descript':217 'document':202 'embed':111 'employe':5,22,42,45 'employee API' 'employee record lookup' 'employee-data' 'endpoint':36,130,164,215 'equal':82 'estim':121 'exact':182 'exampl':206 'exchang':116 'feed':115 'financ':112 'found':209 'gas':120 'generat':128 'generic':229 'geocod':125 'header':161 'host':93 'infrastructur':123 'inlin':152 'json':59 'json-response' 'key':141 'land':173 'limit':144 'list':168 'live':196 'lowpaymentfee' 'lowpaymentfee.com':38,92 'made':151 'maximum':74 'minimum':147 'network':66 'no-api-key' 'openapi':203 'page':174 'particular':212 'pay':2,19,99 'pay-per-cal':1,18,98 'pay-per-call' 'pay-per-request API' 'payment':51,60,149,160,199 'per':3,20,84,100,136 'post':55 'premium':224 'price':114,132 'protocol':52,156 'provid':39,91,171 'quot':119 'rate':117,143 'record':46 'request':56,85,137 'resourc':213 'respons':183,207 'return':58,236 'schema':184 'sentiment':107 'settl':12,29,62 'simpli':223 'sourc':187 'span':103 'spec':204 'specif':44,163 'summar':109 'token':118 'unclear':189 'uniform':133 'unit':80 'usdc':14,31,68,86 'usdc-settlement' 'use':67,87 'util':124 'valid':126 'via':10,27,48,153 'web3':113 'x':159 'x-payment':158 'x402':11,28,50,155,220 'x402 API' 'x402-payment'","prices":[{"id":"a0d98098-9d3f-4984-8962-31d113b9374d","listingId":"9a4d14a9-4571-45c5-8bfd-0e6fc95f13f8","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/81","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:17.952Z"}],"sources":[{"listingId":"9a4d14a9-4571-45c5-8bfd-0e6fc95f13f8","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/81","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:17.952Z","lastSeenAt":"2026-04-24T04:33:15.498Z"}],"details":{"listingId":"9a4d14a9-4571-45c5-8bfd-0e6fc95f13f8","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/81 \\\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 x402 challenge returns maxAmountRequired of 20000 base units in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/employees/81"},{"claim":"All endpoints on lowpaymentfee.com are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/81"}],"useCases":["Retrieving employee data records on demand with per-call USDC micropayments","Integrating pay-per-use data access into agent workflows without API key management","Demonstrating x402 protocol payment flows on the Base network"],"bestFor":["Agents or applications that need on-demand employee data without subscription commitments","Developers experimenting with x402 payment protocol integrations","Use cases requiring keyless, pay-as-you-go API access on Base"],"notFor":["Bulk employee data retrieval where per-call pricing would be cost-prohibitive","Applications requiring well-documented, schema-validated API contracts","Users who need fiat-only payment options with no crypto wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:12.897Z"},"updatedAt":"2026-04-24T04:33:15.498Z"}}