{"id":"92f4232c-976b-428c-b25b-a719333a1e22","shortId":"thxGvy","kind":"x402","title":"Pay-per-call EHR data endpoint on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call EHR data endpoint on Base via x402, settled in USDC at $0.02/request.","description":"This endpoint at `/api/v1/ehr/6` is part of the lowpaymentfee.com platform, which offers a collection of x402-protocol APIs spanning data analytics, AI/ML, finance, infrastructure, and apparently electronic health record (EHR) data. Each call costs $0.02 in USDC on the Base network, with no API keys, rate limits, or subscriptions required — you simply attach an x402 payment header to each request.\n\nThe specific `/api/v1/ehr/6` path suggests an endpoint that returns health-related or electronic health record data for a particular resource (ID 6). However, this endpoint is not listed on the provider's public landing page among the documented API categories (Data & Analytics, AI & ML, Finance & Web3, Infrastructure). No schema, field definitions, or example responses are documented for this path. The x402 challenge confirms the endpoint is live and accepts POST requests, settling payments to `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` in USDC (`0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) on Base.\n\nBecause the endpoint name implies electronic health records — a regulated data category — users should exercise caution regarding data provenance, HIPAA compliance, and whether the returned data is synthetic, anonymized, or real. No documentation clarifies this.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","ehr-data","post-endpoint","no-api-key"],"categories":["health","data"],"synonyms":["electronic health record API","EHR endpoint","health data API","medical records API","x402 health data","lowpaymentfee EHR"],"warnings":["Endpoint /api/v1/ehr/6 is not listed among the provider's publicly documented APIs — its purpose and data content are unverified.","EHR (Electronic Health Record) data is a regulated category; no information is provided about HIPAA compliance, data provenance, or whether data is synthetic/anonymized.","No request or response schema is available; callers cannot know what fields to send or expect back.","Documentation pages (/docs, /api, /pricing, /README) returned only a 'Connect wallet' prompt with no substantive content."],"endpointUrl":"https://lowpaymentfee.com/api/v1/ehr/6","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/ehr/6","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is zero documentation for this specific /ehr/6 path — no request schema, no response schema, no examples, and the endpoint isn't even listed on the provider's own landing page. The EHR label raises regulatory concerns with no clarification 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'/request':17,34 '0.02':16,33,70 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':171 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':174 '6':118 'EHR endpoint' 'accept':165 'ai':139 'ai/ml':57 'among':132 'analyt':56,138 'anonym':205 'api':53,79,135 'appar':61 'attach':88 'base':9,26,75,176 'call':4,21,68 'categori':136,188 'caution':192 'challeng':158 'clarifi':210 'collect':48 'complianc':197 'confirm':159 'cost':69 'data':6,23,55,66,112,137,187,194,202 'definit':147 'document':134,152,209 'ehr':5,22,65 'ehr-data' 'electron':62,109,182 'electronic health record API' 'endpoint':7,24,36,102,121,161,179 'exampl':149 'exercis':191 'field':146 'financ':58,141 'header':92 'health':63,106,110,183 'health data API' 'health-rel':105 'hipaa':196 'howev':119 'id':117 'impli':181 'infrastructur':59,143 'key':80 'land':130 'limit':82 'list':124 'live':163 'lowpaymentfee EHR' 'lowpaymentfee.com':43 'medical records API' 'ml':140 'name':180 'network':76 'no-api-key' 'offer':46 'page':131 'part':40 'particular':115 'path':99,155 'pay':2,19 'pay-per-cal':1,18 'pay-per-request' 'payment':91,169 'per':3,20 'platform':44 'post':166 'post-endpoint' 'protocol':52 'proven':195 'provid':127 'public':129 'rate':81 'real':207 'record':64,111,184 'regard':193 'regul':186 'relat':107 'request':95,167 'requir':85 'resourc':116 'respons':150 'return':104,201 'schema':145 'settl':12,29,168 'simpli':87 'span':54 'specif':97 'subscript':84 'suggest':100 'synthet':204 'usdc':14,31,72,173 'usdc-base' 'user':189 'via':10,27 'web3':142 'whether':199 'x402':11,28,51,90,157 'x402 health data' 'x402-payment' 'x402-protocol':50","prices":[{"id":"420996e4-252d-433c-a3d0-dbd335045307","listingId":"92f4232c-976b-428c-b25b-a719333a1e22","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/ehr/6","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:09.915Z"}],"sources":[{"listingId":"92f4232c-976b-428c-b25b-a719333a1e22","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/ehr/6","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:09.915Z","lastSeenAt":"2026-04-22T18:04:46.612Z"}],"details":{"listingId":"92f4232c-976b-428c-b25b-a719333a1e22","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/ehr/6 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge requesting USDC payment on Base network","source_url":"https://lowpaymentfee.com/api/v1/ehr/6"},{"claim":"Platform pricing is $0.02 per request with no API keys, rate limits, or minimums","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/ehr/6"},{"claim":"The /api/v1/ehr/6 path is not listed among the provider's documented API categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving electronic health record data on a per-call payment basis","Integrating EHR data into agent workflows without subscription overhead","Testing x402 micropayment flows against a health data endpoint"],"bestFor":["Developers exploring x402 pay-per-call patterns","Agents needing on-demand health data without API key management","Prototyping micropayment-gated data access"],"notFor":["Production healthcare applications requiring HIPAA-compliant, audited data pipelines","Use cases needing detailed API documentation, schemas, or SLAs","High-volume batch EHR data retrieval (per-call pricing adds up)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:22.916Z"},"updatedAt":"2026-04-22T18:04:46.612Z"}}