{"id":"b1b320d8-622f-4fcb-aecc-846086d01450","shortId":"LYYYeT","kind":"x402","title":"Pay-per-call HR reviews data endpoint on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call HR reviews data endpoint on Base via x402, settled in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides access to HR review data (specifically resource ID 15) 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 endpoint is part of a broader platform (lowpaymentfee.com) that offers a variety of pay-per-call APIs spanning data & analytics, AI/ML inference, finance & Web3 data, and infrastructure utilities — all priced at $0.02 per request. The platform advertises no API keys, no rate limits, and instant access. Payment is handled entirely through the x402 protocol's X-PAYMENT header mechanism on the Base L2 network.\n\nDocumentation is extremely sparse. The /docs, /pricing, /api, and /README pages all returned only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no detailed description of what the HR reviews endpoint actually returns. The specific path `/api/v1/hr/reviews/15` is not listed on the homepage's API catalog, suggesting it may be an unlisted or legacy endpoint. The endpoint is confirmed live (returns a proper 402 x402 challenge), but the lack of documentation makes it difficult to know what data to send or what response to expect.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","hr-data","pay-per-call","no-api-key","json-response"],"categories":["data"],"synonyms":["HR reviews API","employee reviews","human resources data","x402 API","pay-per-request API","lowpaymentfee","Base USDC API"],"warnings":["No documentation available — /docs, /pricing, /api, and /README pages all return only 'Connect wallet' with no content.","The endpoint path /api/v1/hr/reviews/15 is not listed in the provider's public API catalog on the homepage.","No OpenAPI schema or request/response examples are available; input and output formats are unknown.","No robots.txt or agents.txt found on the origin.","HR/employee data may be subject to privacy regulations (e.g., GDPR, CCPA) depending on jurisdiction and data contents."],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/reviews/15","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/hr/reviews/15","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is no OpenAPI schema, no request/response examples, and no meaningful documentation. The specific HR reviews path is not listed on the provider's homepage catalog. Without knowing the expected input or output format, this is effectively a stub 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'/api/v1/hr/reviews/15':205 '/docs':165 '/pricing':166 '/readme':169 '/request':18,36 '0.02':17,35,86,126 '000':81 '0x8335':73 '15':50 '20':80 '2913':74 '402':232 '6':91 'Base USDC API' 'HR reviews API' 'accept':57 'access':42,140 'actual':200 'advertis':131 'ai/ml':115 'analyt':114 'api':111,133,213 'base':10,28,68,82,157 'base-network' 'broader':99 'call':4,22,110 'catalog':214 'challeng':234 'confirm':227 'connect':175 'content':181 'contract':72 'cost':78 'data':7,25,46,113,119,246 'decim':92 'descript':193 'detail':192 'difficult':242 'document':160,239 'employee reviews' 'endpoint':8,26,38,94,199,223,225 'entir':144 'equal':85 'exampl':189 'expect':253 'extrem':162 'financ':117 'handl':143 'header':153 'homepag':211 'hr':5,23,44,197 'hr-data' 'human resources data' 'id':49 'infer':116 'infrastructur':121 'instant':139 'json':62 'json-response' 'key':134 'know':244 'l2':158 'lack':237 'legaci':222 'limit':137 'list':208 'live':228 'lowpaymentfee' 'lowpaymentfee.com':40,101 'make':240 'maximum':77 'may':217 'mechan':154 'network':69,159 'no-api-key' 'offer':103 'openapi':185 'page':170 'part':96 'path':204 'pay':2,20,108 'pay-per-cal':1,19,107 'pay-per-call' 'pay-per-request API' 'payment':54,63,141,152 'per':3,21,87,109,127 'platform':100,130 'post':58 'price':124 'prompt':177 'proper':231 'protocol':55,148 'provid':41 'rate':136 'request':59,88,128 'request/response':188 'resourc':48 'respons':251 'return':61,172,201,229 'review':6,24,45,198 'schema':186 'send':248 'settl':13,31,65 'span':112 'spars':163 'specif':47,203 'substant':180 'suggest':215 'unit':83 'unlist':220 'usdc':15,33,71,89 'usdc-settlement' 'use':70,90 'util':122 'varieti':105 'via':11,29,51 'wallet':176 'web3':118 'x':151 'x-payment':150 'x402':12,30,53,147,233 'x402 API' 'x402-payment'","prices":[{"id":"40a88188-56b5-4a60-b2fe-2b37f8f50986","listingId":"b1b320d8-622f-4fcb-aecc-846086d01450","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/hr/reviews/15","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.540Z"}],"sources":[{"listingId":"b1b320d8-622f-4fcb-aecc-846086d01450","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/reviews/15","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.540Z","lastSeenAt":"2026-04-23T19:02:14.123Z"}],"details":{"listingId":"b1b320d8-622f-4fcb-aecc-846086d01450","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/reviews/15 \\\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 endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units in USDC on Base network.","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/15"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/15"},{"claim":"Documentation pages (/docs, /pricing, /api, /README) contain only 'Connect wallet' with no substantive content.","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving HR review data for a specific resource (ID 15) on demand","Integrating pay-per-call HR data into agent workflows without API key management","Accessing employee review information with crypto micropayments"],"bestFor":["Agents or applications needing on-demand HR review data with no subscription","Developers experimenting with x402 payment-gated APIs on Base","Workflows requiring keyless, pay-as-you-go data access"],"notFor":["Bulk HR data retrieval (no documented batch endpoints)","Users who need detailed API documentation or guaranteed SLAs","Non-crypto payment workflows (only USDC on Base is accepted)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.348Z"},"updatedAt":"2026-04-23T19:02:14.123Z"}}