{"id":"39f7b24b-aaed-4048-a032-3ea0f3c8bd0a","shortId":"H3jtDP","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 #199) 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 broader 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 at $0.02 per request with no API keys, no rate limits, and no minimum commitments. Payments are handled entirely through the x402 protocol on the Base L2 network.\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 returns or what input it expects beyond a POST body. The endpoint is confirmed live (returns a proper 402 challenge), but the lack of documentation makes it difficult to know what data is actually served.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","employee-data","json-api","pay-per-call"],"categories":["data"],"synonyms":["employee API","employee record lookup","x402 employee data","pay-per-request API","USDC micropayment API","lowpaymentfee","Base network API"],"warnings":["No API documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet'","No OpenAPI or JSON schema describing request parameters or response format","The specific data returned for employee #199 is unknown; no sample responses exist","The broader site lists many endpoint categories but this specific endpoint (/api/v1/employees/199) is not listed on the homepage catalog"],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/199","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/199","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge with clear pricing. However, there is no OpenAPI schema, no request/response examples, and the documentation pages are empty beyond a wallet-connect prompt. The purpose of the employee data endpoint is unclear beyond its URL path. This is effectively a stub 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'/docs':166 '/pricing':168 '/readme':170 '/request':17,34 '0.02':16,33,83,134 '000':78 '0x8335':70 '199':47 '20':77 '2913':71 '402':219 '6':88 'Base network API' 'USDC micropayment API' 'accept':54 'access':40 'actual':234 'ai/ml':106 'analysi':108 'analyt':105 'api':7,24,102,139 'base':9,26,65,79,158 'base-network' 'beyond':207 'bodi':210 'broader':95 'call':4,21,101 'catalog':96 'challeng':220 'classif':110 'commit':147 'confirm':214 'connect':176 'contract':69 'convers':127 'cost':75 'data':6,23,43,104,232 'decim':89 'descript':194 'detail':183 'difficult':228 'document':161,225 'embed':111 'employe':5,22,42,45,199 'employee API' 'employee record lookup' 'employee-data' 'endpoint':36,130,200,212 'entir':151 'equal':82 'estim':121 'exampl':191 'exchang':116 'expect':206 'extrem':163 'feed':115 'field':197 'financ':112 'gas':120 'generat':128 'geocod':125 'handl':150 'host':93 'infrastructur':123 'input':204 'json':59 'json-api' 'key':140 'know':230 'l2':159 'lack':223 'limit':143 'live':215 'lowpaymentfee' 'lowpaymentfee.com':38,92 'make':226 'maximum':74 'minimum':146 'network':66,160 'openapi':187 'page':171 'pay':2,19,99 'pay-per-cal':1,18,98 'pay-per-call' 'pay-per-request API' 'payment':51,60,148 'per':3,20,84,100,135 'post':55,209 'price':114,132 'prompt':178 'proper':218 'protocol':52,155 'provid':39,91 'quot':119 'rate':117,142 'record':46 'render':173 'request':56,85,136 'request/response':190 'return':58,201,216 'schema':188 'sentiment':107 'serv':235 'settl':12,29,62 'span':103 'spars':164 'specif':44 'summar':109 'technic':182 'token':118 'unit':80 'usdc':14,31,68,86 'usdc-settlement' 'use':67,87 'util':124 'valid':126 'via':10,27,48 'wallet':177 'web3':113 'x402':11,28,50,154 'x402 employee data' 'x402-payment'","prices":[{"id":"f5ad6fdb-9734-4414-a282-44779ab78719","listingId":"39f7b24b-aaed-4048-a032-3ea0f3c8bd0a","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/199","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:16.166Z"}],"sources":[{"listingId":"39f7b24b-aaed-4048-a032-3ea0f3c8bd0a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/199","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:16.166Z","lastSeenAt":"2026-04-24T16:03:42.370Z"}],"details":{"listingId":"39f7b24b-aaed-4048-a032-3ea0f3c8bd0a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/199 \\\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 advertising USDC on Base at maxAmountRequired 20000","source_url":"https://lowpaymentfee.com/api/v1/employees/199"},{"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":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/employees/199"}],"useCases":["Retrieving employee record data on a per-call payment basis","Integrating employee information into agent workflows without API key management","Demonstrating x402 payment protocol integration for data access"],"bestFor":["Agents or applications that need on-demand employee data without subscription commitments","Developers experimenting with x402 payment-gated APIs on Base","Low-volume, pay-as-you-go data retrieval"],"notFor":["High-volume bulk employee data exports (no documented batch endpoint)","Use cases requiring detailed API documentation or guaranteed SLAs","Applications needing non-USDC or non-Base payment settlement"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:15.523Z"},"updatedAt":"2026-04-24T16:03:42.370Z"}}