{"id":"82e88bed-5135-44eb-901e-03993d9666e2","shortId":"Bc2vBC","kind":"x402","title":"HR reviews data endpoint on Base, pay-per-call via x402 with USDC at $0.02/request.","tagline":"HR reviews data endpoint on Base, pay-per-call via x402 with USDC at $0.02/request.","description":"This endpoint at `/api/v1/hr/reviews/22` is part of the lowpaymentfee.com platform, a collection of x402-enabled APIs spanning data analytics, AI/ML, finance, infrastructure, and more. Each endpoint charges $0.02 per request, settled in USDC on the Base network, with no API keys, rate limits, or subscriptions required.\n\nThe specific resource at `/hr/reviews/22` appears to serve HR review data (likely a single review record identified by ID 22), though it is not listed among the categories shown on the provider's landing page (Data & Analytics, AI & ML, Finance & Web3, Infrastructure). The endpoint is live and returns a valid x402 challenge with `maxAmountRequired` of 20,000 base units of USDC (6 decimals), which equals $0.02. Payment is made via the x402 \"exact\" scheme to a specified wallet address, and the response MIME type is `application/json`.\n\nDocumentation is minimal — the provider's site offers no OpenAPI spec, no request/response schema details, and no examples for this or any other endpoint. The `/api`, `/pricing`, and `/README` pages all resolve to a bare \"Connect wallet\" prompt with no additional content. Because of this, the exact request body format and response structure are unknown. Agents should be prepared to experiment with POST payloads or treat this as a simple POST-with-payment endpoint.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-call","hr-data","json-response","no-api-key","no-rate-limit"],"categories":["data"],"synonyms":["HR reviews API","human resources review","employee review data","x402 USDC endpoint","lowpaymentfee API","pay-per-request API","Base network API"],"warnings":["No OpenAPI or schema documentation available for any endpoint on this provider","The /api/v1/hr/reviews/22 path is not listed among the provider's advertised API categories — it may be a test or undocumented endpoint","Request body format and response structure are completely unknown","Provider's /pricing, /README, and /api pages contain no useful content beyond 'Connect wallet'"],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/reviews/22","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/22","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge, confirming it accepts USDC payments on Base at $0.02. However, there is no OpenAPI spec, no request/response schema, no documentation, and the /hr/reviews path is not even listed on the provider's own landing page. The actual data returned is entirely 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'/api/v1/hr/reviews/22':38 '/hr/reviews/22':86 '/pricing':194 '/readme':196 '/request':17,34 '0.02':16,33,63,147 '000':138 '20':137 '22':101 '6':143 'Base network API' 'HR reviews API' 'addit':208 'address':160 'agent':223 'ai':119 'ai/ml':55 'among':107 'analyt':54,118 'api':51,75 'appear':87 'application/json':167 'bare':202 'base':6,23,71,139 'bodi':216 'call':10,27 'categori':109 'challeng':133 'charg':62 'collect':46 'connect':203 'content':209 'data':3,20,53,92,117 'decim':144 'detail':182 'document':168 'employee review data' 'enabl':50 'endpoint':4,21,36,61,125,191,242 'equal':146 'exact':154,214 'exampl':185 'experi':228 'financ':56,121 'format':217 'hr':1,18,90 'hr-data' 'human resources review' 'id':100 'identifi':98 'infrastructur':57,123 'json-response' 'key':76 'land':115 'like':93 'limit':78 'list':106 'live':127 'lowpaymentfee API' 'lowpaymentfee.com':43 'made':150 'maxamountrequir':135 'mime':164 'minim':170 'ml':120 'network':72 'no-api-key' 'no-rate-limit' 'offer':175 'openapi':177 'page':116,197 'part':40 'pay':8,25 'pay-per-cal':7,24 'pay-per-call' 'pay-per-request API' 'payload':231 'payment':148,241 'per':9,26,64 'platform':44 'post':230,239 'post-with-pay':238 'prepar':226 'prompt':205 'provid':113,172 'rate':77 'record':97 'request':65,215 'request/response':180 'requir':81 'resolv':199 'resourc':84 'respons':163,219 'return':129 'review':2,19,91,96 'schema':181 'scheme':155 'serv':89 'settl':66 'shown':110 'simpl':237 'singl':95 'site':174 'span':52 'spec':178 'specif':83 'specifi':158 'structur':220 'subscript':80 'though':102 'treat':233 'type':165 'unit':140 'unknown':222 'usdc':14,31,68,142 'usdc-base' 'valid':131 'via':11,28,151 'wallet':159,204 'web3':122 'x402':12,29,49,132,153 'x402 USDC endpoint' 'x402-enabled':48 'x402-payment'","prices":[{"id":"b79bd575-ec29-49b3-8024-c9726343ea1e","listingId":"82e88bed-5135-44eb-901e-03993d9666e2","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/22","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.407Z"}],"sources":[{"listingId":"82e88bed-5135-44eb-901e-03993d9666e2","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/reviews/22","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.407Z","lastSeenAt":"2026-04-23T19:02:13.991Z"}],"details":{"listingId":"82e88bed-5135-44eb-901e-03993d9666e2","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/reviews/22 \\\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 valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/22"},{"claim":"The provider advertises $0.02 per request across all endpoints with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is the canonical USDC contract on Base","source_url":"https://lowpaymentfee.com/api/v1/hr/reviews/22"}],"useCases":["Retrieving HR review records programmatically","Integrating employee review data into HR dashboards","Agent-driven data retrieval with micropayments"],"bestFor":["Developers needing keyless, pay-per-call access to HR review data","AI agents that can settle x402 payments on Base","Quick one-off data lookups without subscription overhead"],"notFor":["Bulk HR data exports (no documented batch endpoint)","Users who need detailed API documentation or SDKs before integrating","Non-crypto payment workflows (only USDC on Base is accepted)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.581Z"},"updatedAt":"2026-04-23T19:02:13.991Z"}}