{"id":"fb19c501-8b89-41c7-a96f-2da5ceb6aa54","shortId":"P3C7yR","kind":"x402","title":"Pay-per-call medical records endpoint on Base via x402, settled in USDC.","tagline":"Pay-per-call medical records endpoint on Base via x402, settled in USDC.","description":"This endpoint at `/api/v1/medical/records/39` is part of the lowpaymentfee.com platform, which offers a broad catalog of pay-per-request APIs spanning data analytics, AI/ML inference, finance, and infrastructure utilities. All endpoints use the x402 protocol for payment, settling in USDC on the Base network with no API keys, no rate limits, and no subscriptions required.\n\nThe specific resource at `/api/v1/medical/records/39` is listed under the title \"Premium API Access\" and accepts POST requests. The x402 challenge indicates a maximum cost of 20,000 base units of USDC (0.02 USD per request), consistent with the site-wide $0.02/request pricing. Payment is made to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base, using the USDC contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`.\n\nImportant caveats: the endpoint path suggests it returns medical records, but no documentation, request schema, or response schema is available beyond the x402 challenge metadata. The crawled site lists many API categories but does not include a medical/records category on its landing page, and the /api, /pricing, and /README pages all returned only a \"Connect wallet\" prompt with no further content. The actual data returned by this endpoint, its input parameters, and the nature of \"record 39\" are entirely unknown from the available material.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","medical-records","pay-per-request","no-api-key","post-endpoint"],"categories":["data","health"],"synonyms":["medical records API","health data endpoint","x402 medical API","pay-per-call health records","USDC medical data","lowpaymentfee medical","Base network health API"],"warnings":["No request or response schema available — input parameters and output format are completely unknown.","Endpoint path suggests medical/health data but no compliance, HIPAA, or data-source information is provided.","This specific endpoint (/api/v1/medical/records/39) does not appear in the site's published API catalog, raising questions about its provenance.","The /api, /pricing, and /README pages returned no useful content beyond a wallet-connect prompt.","The nature of 'record 39' is unclear — it may be synthetic/demo data or real medical information."],"endpointUrl":"https://lowpaymentfee.com/api/v1/medical/records/39","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/39","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no request/response schema, no examples, and the endpoint's actual functionality is opaque. The medical records path raises regulatory concerns with zero compliance information 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'/api/v1/medical/records/39':32,89 '/pricing':188 '/readme':190 '/request':127 '0.02':116,126 '000':111 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':134 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':141 '20':110 '39':218 'Base network health API' 'USDC medical data' 'accept':99 'access':97 'actual':204 'address':133 'ai/ml':53 'analyt':52 'api':49,76,96,172 'avail':161,224 'base':9,23,72,112,136 'base-network' 'beyond':162 'broad':42 'call':4,18 'catalog':43 'categori':173,180 'caveat':143 'challeng':104,165 'connect':196 'consist':120 'content':202 'contract':140 'cost':108 'crawl':168 'data':51,205 'document':154 'endpoint':7,21,30,60,145,209 'entir':220 'financ':55 'health data endpoint' 'import':142 'includ':177 'indic':105 'infer':54 'infrastructur':57 'input':211 'key':77 'land':183 'limit':80 'list':91,170 'lowpaymentfee medical' 'lowpaymentfee.com':37 'made':131 'mani':171 'materi':225 'maximum':107 'medic':5,19,150 'medical records API' 'medical-records' 'medical/records':179 'metadata':166 'natur':215 'network':73 'no-api-key' 'offer':40 'page':184,191 'paramet':212 'part':34 'path':146 'pay':2,16,46 'pay-per-cal':1,15 'pay-per-call health records' 'pay-per-request':45 'payment':66,129 'per':3,17,47,118 'platform':38 'post':100 'post-endpoint' 'premium':95 'price':128 'prompt':198 'protocol':64 'rate':79 'record':6,20,151,217 'request':48,101,119,155 'requir':84 'resourc':87 'respons':158 'return':149,193,206 'schema':156,159 'settl':12,26,67 'site':124,169 'site-wid':123 'span':50 'specif':86 'subscript':83 'suggest':147 'titl':94 'unit':113 'unknown':221 'usd':117 'usdc':14,28,69,115,139 'usdc-settlement' 'use':61,137 'util':58 'via':10,24 'wallet':197 'wide':125 'x402':11,25,63,103,164 'x402 medical API' 'x402-payment'","prices":[{"id":"793bb524-590f-46ec-9597-7611ab6a56da","listingId":"fb19c501-8b89-41c7-a96f-2da5ceb6aa54","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/39","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:25.053Z"}],"sources":[{"listingId":"fb19c501-8b89-41c7-a96f-2da5ceb6aa54","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/medical/records/39","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:25.053Z","lastSeenAt":"2026-04-22T01:02:21.054Z"}],"details":{"listingId":"fb19c501-8b89-41c7-a96f-2da5ceb6aa54","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/medical/records/39 \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\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 x402 challenge returns a maxAmountRequired of 20000 base units of USDC (6 decimals = $0.02) on Base network.","source_url":"https://lowpaymentfee.com/api/v1/medical/records/39"},{"claim":"Site-wide pricing is listed as $0.02 per request with no API keys, no rate limits, and instant access on Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset contract used is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base.","source_url":"https://lowpaymentfee.com/api/v1/medical/records/39"}],"useCases":["Retrieving medical record data (record ID 39) via a single pay-per-call request","Agent-driven workflows that need on-demand access to health-related data without subscription management","Programmatic access to medical information settled instantly in USDC on Base"],"bestFor":["Developers or agents needing low-cost, keyless API access to medical record data","x402-compatible agents that can settle USDC payments on Base","Use cases where per-request billing with no commitment is preferred"],"notFor":["Production healthcare applications requiring HIPAA-compliant, auditable data pipelines — compliance status is unknown","Users who need detailed API documentation, request/response schemas, or SLA guarantees before integrating"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:03.123Z"},"updatedAt":"2026-04-22T01:02:21.054Z"}}