{"id":"f3744a70-3dc9-404a-b80d-1f0b7c88e7a8","shortId":"4N7cBj","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/147` returns JSON data for employee ID 147 when called with a POST request and a valid X-PAYMENT header containing a USDC micropayment on the Base network.\n\nThe endpoint is part of a broader platform (lowpaymentfee.com) that offers dozens of pay-per-call APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request. Payment is handled natively via x402: no API keys, no accounts, no rate limits. The caller simply attaches a USDC payment (on Base L2) in the request header and receives the response immediately.\n\nThe x402 challenge confirms the endpoint is live and accepts the \"exact\" payment scheme on the Base network. The asset address `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` corresponds to USDC on Base. The maxAmountRequired of 20000 base units equals $0.02 (USDC uses 6 decimals). Documentation beyond the landing page is essentially empty (all sub-pages just show \"Connect wallet\"), so the exact schema of the employee record returned is unknown.","tags":[],"capabilities":["x402-payment","usdc-base","employee-data","pay-per-call","no-api-key","json-response"],"categories":["data"],"synonyms":["employee API","employee record lookup","x402 employee endpoint","USDC micropayment API","Base network API","lowpaymentfee","pay-per-request data"],"warnings":["No documentation available — all doc pages render only 'Connect wallet'","No OpenAPI or output schema provided; the structure of the employee record is unknown","The /api/v1/employees/147 path is not listed among the advertised APIs on the landing page, so its purpose and data contents are unclear","No SLA, rate-limit, or uptime guarantees documented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/147","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/147","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 pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no example responses, and no description of what the employee data object contains. All doc/pricing/README pages return only 'Connect wallet' with no useful 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'/request':17,34 '0.02':16,33,114,184 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':171 '147':60 '20000':180 '6':187 'Base network API' 'USDC micropayment API' 'accept':159 'access':40 'account':127 'address':170 'ai':103 'analyt':102 'api':7,24,99,124 'asset':169 'attach':134 'base':9,26,80,139,166,176,181 'beyond':190 'broader':88 'call':4,21,62,98 'caller':132 'challeng':152 'confirm':153 'connect':203 'contain':74 'correspond':172 'data':6,23,43,56,101 'decim':188 'document':189 'dozen':93 'employe':5,22,42,58,211 'employee API' 'employee record lookup' 'employee-data' 'empti':196 'endpoint':36,83,155 'equal':183 'essenti':195 'exact':161,207 'financ':106 'handl':119 'header':73,144 'id':59 'immedi':149 'infrastructur':109 'json':55 'json-response' 'key':125 'l2':140 'land':192 'learn':105 'limit':130 'live':157 'lowpaymentfee' 'lowpaymentfee.com':38,90 'machin':104 'maxamountrequir':178 'micropay':77 'nativ':120 'network':81,167 'no-api-key' 'offer':92 'page':193,200 'part':85 'pay':2,19,96 'pay-per-cal':1,18,95 'pay-per-call' 'pay-per-request data' 'payment':48,72,117,137,162 'per':3,20,97,115 'platform':89 'post':65 'price':112 'protocol':49 'provid':39 'rate':129 'receiv':146 'record':44,212 'request':66,116,143 'resourc':52 'respons':148 'return':54,213 'schema':208 'scheme':163 'settl':12,29 'show':202 'simpli':133 'span':100 'specif':51 'sub':199 'sub-pag':198 'unit':182 'unknown':215 'usdc':14,31,76,136,174,185 'usdc-base' 'use':186 'util':110 'valid':69 'via':10,27,45,121 'wallet':204 'web3':107 'x':71 'x-payment':70 'x402':11,28,47,122,151 'x402 employee endpoint' 'x402-payment'","prices":[{"id":"12b57e8a-f100-48ec-a648-3c2cf57168ba","listingId":"f3744a70-3dc9-404a-b80d-1f0b7c88e7a8","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/147","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:14.523Z"}],"sources":[{"listingId":"f3744a70-3dc9-404a-b80d-1f0b7c88e7a8","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/147","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:14.523Z","lastSeenAt":"2026-04-25T03:03:58.937Z"}],"details":{"listingId":"f3744a70-3dc9-404a-b80d-1f0b7c88e7a8","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/147 \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\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 x402 challenge requiring USDC payment on Base","source_url":"https://lowpaymentfee.com/api/v1/employees/147"},{"claim":"USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/147"},{"claim":"Platform advertises $0.02 per request, no API keys, no rate limits","source_url":"https://lowpaymentfee.com"},{"claim":"maxAmountRequired is 20000 base units (= $0.02 with 6 decimals for USDC)","source_url":"https://lowpaymentfee.com/api/v1/employees/147"}],"useCases":["Retrieving employee records by ID in an automated agent workflow","Demonstrating x402 micropayment integration on Base","Building paywall-gated data services without traditional auth"],"bestFor":["Developers experimenting with x402 payment protocol","Agents that need on-demand employee data without API key management","Low-volume, pay-as-you-go data access"],"notFor":["Bulk employee data exports (single-record endpoint, $0.02 each)","Users without a Base-network USDC wallet","Production HR systems needing guaranteed SLAs (no documented uptime guarantees)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:17.801Z"},"updatedAt":"2026-04-25T03:03:58.937Z"}}