{"id":"55252ff7-9fc9-4d2a-ba53-00c2e58bae00","shortId":"WPLE32","kind":"x402","title":"x402-gated medical records endpoint on Base, pay-per-request with USDC.","tagline":"x402-gated medical records endpoint on Base, pay-per-request with USDC.","description":"This endpoint at lowpaymentfee.com provides access to a medical records resource (record ID 99) behind an x402 payment wall. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) via the x402 \"exact\" scheme. The maximum amount required per request is 20,000 base units of USDC, which equals $0.02 (USDC uses 6 decimals).\n\nThe provider's landing page advertises a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, infrastructure utilities, and more — all priced at $0.02 per request with no API keys, no rate limits, and no commitments. However, this specific listing is for the `/api/v1/medical/records/99` path, which is not listed on the provider's public catalog page. No documentation, request/response schema, or example payloads are available for this endpoint. It is unclear what data this endpoint returns, what input it expects in the POST body, or whether it serves real medical data or placeholder/demo content.\n\nThe endpoint is confirmed live: the probe received a proper HTTP 402 x402 challenge with version 1 headers. The root site returns HTTP 200. No OpenAPI spec, ai-plugin manifest, or agents.txt was found.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","medical-records","pay-per-request","json-response"],"categories":["data","health"],"synonyms":["medical records API","health data endpoint","x402 medical","pay-per-call medical data","USDC medical API","lowpaymentfee medical"],"warnings":["No documentation or schema available for this endpoint — request body and response format are unknown.","The /api/v1/medical/records/99 path is not listed on the provider's public catalog; it may be a demo or placeholder.","Endpoint claims to serve 'medical records' but no compliance, privacy, or data-source information is provided.","This may involve regulated health data — exercise caution regarding HIPAA and other healthcare data regulations.","No examples, no OpenAPI spec, no agents.txt, no ai-plugin manifest found."],"endpointUrl":"https://lowpaymentfee.com/api/v1/medical/records/99","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/medical/records/99","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 challenge, but there is no documentation, no OpenAPI spec, no request/response schema, and the specific medical records path is not listed on the provider's own catalog. The nature and legitimacy of the data returned is entirely unknown. This is effectively a stub 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'0.02':88,122 '000':81 '0x8335':66 '1':209 '20':80 '200':216 '2913':67 '402':204 '6':91 '99':42 'USDC medical API' 'accept':50 'access':34 'advertis':98 'agents.txt':225 'ai':221 'ai-plugin':220 'ai/ml':111 'amount':75 'analyt':110 'api':107,127 'avail':163 'base':8,22,61,82 'base-network' 'behind':43 'bodi':182 'broad':100 'call':106 'catalog':101,153 'challeng':206 'commit':134 'confirm':196 'content':192 'contract':65 'crypto':114 'data':109,171,189 'decim':92 'document':156 'endpoint':6,20,30,49,166,173,194 'equal':87 'exact':71 'exampl':160 'expect':178 'financ':113 'found':227 'gate':3,17 'header':210 'health data endpoint' 'howev':135 'http':203,215 'id':41 'infer':112 'infrastructur':115 'input':176 'json':55 'json-response' 'key':128 'land':96 'limit':131 'list':138,147 'live':197 'lowpaymentfee medical' 'lowpaymentfee.com':32 'manifest':223 'maximum':74 'medic':4,18,37,188 'medical records API' 'medical-records' 'network':62 'openapi':218 'page':97,154 'path':143 'pay':10,24,104 'pay-per-cal':103 'pay-per-call medical data' 'pay-per-request':9,23 'payload':161 'payment':46,56 'per':11,25,77,105,123 'placeholder/demo':191 'plugin':222 'post':51,181 'price':120 'probe':199 'proper':202 'provid':33,94,150 'public':152 'rate':130 'real':187 'receiv':200 'record':5,19,38,40 'request':12,26,52,78,124 'request/response':157 'requir':76 'resourc':39 'return':54,174,214 'root':212 'schema':158 'scheme':72 'serv':186 'settl':58 'site':213 'span':108 'spec':219 'specif':137 'unclear':169 'unit':83 'usdc':14,28,64,85,89 'usdc-settlement' 'use':63,90 'util':116 'version':208 'via':68 'wall':47 'whether':184 'x402':2,16,45,70,205 'x402 medical' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"39d7bc43-9dd5-438f-972a-881ae9195582","listingId":"55252ff7-9fc9-4d2a-ba53-00c2e58bae00","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/medical/records/99","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:25.643Z"}],"sources":[{"listingId":"55252ff7-9fc9-4d2a-ba53-00c2e58bae00","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/medical/records/99","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:25.643Z","lastSeenAt":"2026-04-22T02:32:05.700Z"}],"details":{"listingId":"55252ff7-9fc9-4d2a-ba53-00c2e58bae00","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/medical/records/99 \\\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 HTTP 402 with x402 version 1 challenge requiring USDC payment on Base network","source_url":"https://lowpaymentfee.com/api/v1/medical/records/99"},{"claim":"maxAmountRequired is 20000 base units of USDC (USD Coin, 6 decimals) = $0.02","source_url":"https://lowpaymentfee.com/api/v1/medical/records/99"},{"claim":"The provider advertises all APIs at $0.02/request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The provider's catalog lists analytics, AI/ML, finance, crypto, and utility endpoints but does not list /api/v1/medical/records/99","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving medical record data for record ID 99 via a single paid API call","Demonstrating x402 micropayment flows against a medical data endpoint","Integrating pay-per-request health data into agent workflows"],"bestFor":["Developers experimenting with x402 payment protocol on Base","Agents needing on-demand medical record retrieval without API keys","Testing micropayment-gated data access patterns"],"notFor":["Production healthcare applications requiring HIPAA compliance guarantees (no compliance info available)","Bulk medical data retrieval or batch processing (single-record endpoint)","Users who need detailed API documentation before integrating"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:02.249Z"},"updatedAt":"2026-04-22T02:32:05.700Z"}}