{"id":"8088b6f1-882a-4281-abc2-aedf91ea1a23","shortId":"JpXAnR","kind":"x402","title":"Pay-per-call employee data API on Base via x402 — $0.02/request in USDC.","tagline":"Pay-per-call employee data API on Base via x402 — $0.02/request in USDC.","description":"This endpoint at lowpaymentfee.com provides access to employee data (specifically employee record #51) via the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) at a cost of $0.02 per request (20,000 base units with 6 decimals). No API keys, rate limits, or subscriptions are required — each call is individually paid for via the X-PAYMENT header.\n\nThe provider lowpaymentfee.com hosts a broader suite of pay-per-call APIs spanning data & analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints share the same $0.02/request pricing model and x402 payment flow on Base.\n\nDocumentation is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The specific data returned by the /api/v1/employees/51 endpoint is unknown beyond the stated mime type of application/json.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","employee-data","json-api","no-api-key","no-rate-limit"],"categories":["data"],"synonyms":["employee API","employee record lookup","x402 employee endpoint","pay-per-call data API","Base USDC API","lowpaymentfee API","employee data service"],"warnings":["No API documentation available — docs, pricing, and README pages all show only 'Connect wallet'","No OpenAPI or JSON schema for request or response payloads","Unknown what data the /api/v1/employees/51 endpoint actually returns","The endpoint path suggests a single hardcoded employee record (#51); unclear if other IDs are supported"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/51","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/51","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is zero documentation on request parameters, response schema, or what employee data is actually returned. No OpenAPI spec, no examples, and all doc pages are empty beyond a wallet connect prompt. This is effectively a stub 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'/request':13,28,149 '0.02':12,27,72,148 '000':76 '0x8335':66 '20':75 '2913':67 '51':43 '6':80 'Base USDC API' 'accept':50 'access':36 'ai/ml':119 'analysi':122 'analyt':118 'api':7,22,83,115,164 'application/json':210 'avail':193 'base':9,24,61,77,157 'beyond':204 'broader':108 'call':4,19,92,114 'classif':124 'connect':173 'content':179 'contract':65 'convers':141 'cost':70 'data':6,21,39,117,196 'decim':81 'doc':163 'document':158,188 'embed':125 'employe':5,20,38,41 'employee API' 'employee data service' 'employee record lookup' 'employee-data' 'endpoint':32,144,201 'estim':135 'exampl':191 'exchang':130 'extrem':160 'feed':129 'financ':126 'flow':155 'gas':134 'generat':142 'geocod':139 'header':102 'host':106 'individu':94 'infer':120 'infrastructur':137 'json':55 'json-api' 'key':84 'limit':86 'lowpaymentfee API' 'lowpaymentfee.com':34,105 'mime':207 'model':151 'network':62 'no-api-key' 'no-rate-limit' 'openapi':183 'page':168 'paid':95 'pay':2,17,112 'pay-per-cal':1,16,111 'pay-per-call data API' 'pay-per-request' 'payload':192 'payment':47,56,101,154 'per':3,18,73,113 'post':51 'price':128,150,165 'prompt':175 'protocol':48 'provid':35,104 'quot':133 'rate':85,131 'readm':167 'record':42 'render':170 'request':52,74 'request/response':186 'requir':90 'return':54,197 'schema':187 'sentiment':121 'settl':58 'share':145 'span':116 'spars':161 'spec':184 'specif':40,195 'state':206 'subscript':88 'suit':109 'summar':123 'token':132 'type':208 'unit':78 'unknown':203 'usdc':15,30,64 'usdc-base' 'use':63 'util':138 'valid':140 'via':10,25,44,97 'wallet':174 'web3':127 'x':100 'x-payment':99 'x402':11,26,46,153 'x402 employee endpoint' 'x402-payment'","prices":[{"id":"cd8394dd-7be5-4b29-8010-fbdf3ac6fa28","listingId":"8088b6f1-882a-4281-abc2-aedf91ea1a23","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/51","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:17.187Z"}],"sources":[{"listingId":"8088b6f1-882a-4281-abc2-aedf91ea1a23","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/51","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:17.187Z","lastSeenAt":"2026-04-24T09:33:12.221Z"}],"details":{"listingId":"8088b6f1-882a-4281-abc2-aedf91ea1a23","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/51 \\\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/51"},{"claim":"maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02","source_url":"https://lowpaymentfee.com/api/v1/employees/51"},{"claim":"All endpoints priced at $0.02/request with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Provider offers APIs across data & analytics, AI/ML, finance & Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, API, pricing, and README pages render only 'Connect wallet' with no documentation content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee record data on a per-request payment basis without needing an API key","Integrating employee data lookups into agent workflows that support x402 micropayments","Accessing structured employee information with instant, keyless access via crypto payment"],"bestFor":["Agents or applications that support x402 payment protocol on Base","Use cases requiring keyless, subscription-free access to employee data","Developers wanting to test x402 payment flows with a low-cost endpoint"],"notFor":["Bulk employee data retrieval (pay-per-request model would be costly at scale)","Users who need detailed API documentation or schema guarantees before integration","Applications that cannot settle payments in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:14.069Z"},"updatedAt":"2026-04-24T09:33:12.221Z"}}