{"id":"f4f93d12-9a74-4b50-a0d5-89e640b5644f","shortId":"8j2WnU","kind":"x402","title":"Pay-per-call employee data API on Base, settled in USDC via x402 at $0.02/request.","tagline":"Pay-per-call employee data API on Base, settled in USDC via x402 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/33` returns JSON data for employee ID 33, gated behind a per-request USDC micropayment on the Base network. The x402 challenge confirms the endpoint is live and accepts payments of up to 20,000 base units of USDC (i.e., $0.02) per call.\n\nThe broader lowpaymentfee.com platform hosts a variety 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 with no API keys, no rate limits, and no commitments required — payment is handled entirely through the x402 protocol using USDC on Base.\n\nDocumentation is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI schema, no request/response examples, and no description of what fields the employee endpoint actually returns. The endpoint accepts POST requests based on the outputSchema in the x402 challenge, but the expected request body structure is unknown.","tags":[],"capabilities":["x402-payment","usdc-base","per-call-micropayment","employee-data","json-response","no-api-key","post-method"],"categories":["data"],"synonyms":["employee API","employee record lookup","paid data endpoint","x402 micropayment API","Base USDC API","lowpaymentfee","per-request payment API"],"warnings":["No OpenAPI schema or request/response documentation available","All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content","The exact data returned by /api/v1/employees/33 is undocumented — field names and structure are unknown","This endpoint path suggests it returns data for a single hardcoded employee ID (33); generalization to other IDs is unconfirmed"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/33","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/33","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The x402 challenge is live and confirms pricing and payment details, but there is zero documentation on request/response schemas, no OpenAPI spec, and all doc pages render only 'Connect wallet'. The specific employee endpoint's purpose and data shape are entirely unknown beyond the title 'Premium API 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'/request':17,34,143 '0.02':16,33,94,142 '000':88 '20':87 '33':60 'Base USDC API' 'accept':82,213 'access':40 'actual':209 'ai/ml':113 'analysi':116 'analyt':112 'api':7,24,109,148,175 'base':9,26,71,89,168,216 'behind':62 'bodi':228 'broader':98 'call':4,21,96,108 'challeng':75,223 'classif':118 'commit':155 'confirm':76 'connect':184 'convers':135 'data':6,23,43,56,111 'descript':202 'detail':191 'doc':174 'document':169 'embed':119 'employe':5,22,42,58,207 'employee API' 'employee record lookup' 'employee-data' 'endpoint':36,78,138,208,212 'entir':160 'estim':129 'exampl':199 'exchang':124 'expect':226 'extrem':171 'feed':123 'field':205 'financ':120 'gas':128 'gate':61 'generat':136 'geocod':133 'handl':159 'host':101 'i.e':93 'id':59 'infer':114 'infrastructur':131 'json':55 'json-response' 'key':149 'limit':152 'live':80 'lowpaymentfee' 'lowpaymentfee.com':38,99 'micropay':68 'model':145 'network':72 'no-api-key' 'openapi':195 'outputschema':219 'page':179 'paid data endpoint' 'pay':2,19,106 'pay-per-cal':1,18,105 'payment':48,83,157 'per':3,20,65,95,107 'per-call-micropayment' 'per-request':64 'per-request payment API' 'platform':100 'post':214 'post-method' 'price':122,144,176 'prompt':186 'protocol':49,164 'provid':39 'quot':127 'rate':125,151 'readm':178 'record':44 'render':181 'request':66,215,227 'request/response':198 'requir':156 'resourc':52 'return':54,210 'schema':196 'sentiment':115 'settl':10,27 'share':139 'span':110 'spars':172 'specif':51 'structur':229 'summar':117 'technic':190 'token':126 'unit':90 'unknown':231 'usdc':12,29,67,92,166 'usdc-base' 'use':165 'util':132 'valid':134 'varieti':103 'via':13,30,45 'wallet':185 'web3':121 'x402':14,31,47,74,163,222 'x402 micropayment API' 'x402-payment'","prices":[{"id":"a0d33d5e-14e0-4452-87d8-5236c928fa66","listingId":"f4f93d12-9a74-4b50-a0d5-89e640b5644f","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/33","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:16.416Z"}],"sources":[{"listingId":"f4f93d12-9a74-4b50-a0d5-89e640b5644f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/33","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:16.416Z","lastSeenAt":"2026-04-24T15:03:31.059Z"}],"details":{"listingId":"f4f93d12-9a74-4b50-a0d5-89e640b5644f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/33 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","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 of USDC on Base (asset 0x8335…), equating to $0.02 per request","source_url":"https://lowpaymentfee.com/api/v1/employees/33"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on the Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages (docs, API, pricing, README) all render only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving employee data records with per-call payment and no subscription","Demonstrating x402 protocol integration for micropayment-gated APIs","Accessing structured employee information without API key management"],"bestFor":["Developers experimenting with x402 payment protocol","Agents needing on-demand employee data without pre-registration","Low-volume, pay-as-you-go data retrieval"],"notFor":["High-volume bulk employee data exports (no documented batch endpoint)","Users who need detailed API documentation or OpenAPI specs before integrating","Anyone without a Base-network USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:15.19Z"},"updatedAt":"2026-04-24T15:03:31.059Z"}}