{"id":"30891787-56de-433d-8e37-ce54be94c07a","shortId":"kBN3ex","kind":"x402","title":"x402-gated EHR data endpoint on Base, pay $0.02 per request in USDC.","tagline":"x402-gated EHR data endpoint on Base, pay $0.02 per request in USDC.","description":"This endpoint at `/api/v1/ehr/12` is part of the lowpaymentfee.com platform, a collection of x402-protocol pay-per-request APIs settled in USDC on the Base network. The specific endpoint appears to serve Electronic Health Record (EHR) data, though the crawled documentation provides no details about the schema, fields, or data source behind this particular resource. The platform advertises a flat $0.02 per request across all its endpoints, and the x402 challenge confirms a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base, 6 decimals), which equals $0.02.\n\nThe platform requires no API keys and advertises no rate limits. Payment is handled entirely via the x402 protocol: callers send an `X-PAYMENT` header containing a signed payment authorization, and the server fulfills the request upon verification. The endpoint accepts POST requests and returns `application/json`. However, there is no OpenAPI spec, no request/response schema documentation, and no example payloads available from the crawled pages. The `/docs`, `/pricing`, `/api`, and `/README` pages all returned only a \"Connect wallet\" prompt with no substantive content.\n\nBecause the endpoint path suggests health record data (`/ehr/12`), this may involve regulated or sensitive information. The lack of documentation about what data is returned, its provenance, and any compliance considerations is a significant gap. Prospective users should exercise caution and verify the nature of the data before integrating.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","ehr-data","json-response","no-api-key"],"categories":["health","data"],"synonyms":["electronic health record","EHR API","medical data API","health record endpoint","x402 EHR","pay-per-call health data"],"warnings":["No request or response schema documentation available — input/output formats are unknown","Endpoint path suggests Electronic Health Record data, which may be subject to HIPAA or other health data regulations; no compliance information is provided","All documentation pages (/docs, /pricing, /api, /README) returned only 'Connect wallet' with no content","The specific resource '/ehr/12' is undocumented; it is unclear what entity ID 12 represents or whether other IDs are available"],"endpointUrl":"https://lowpaymentfee.com/api/v1/ehr/12","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/12","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). However, there is zero documentation on request/response schemas, no OpenAPI spec, no examples, and the docs pages are empty. The nature of the EHR data is entirely undocumented, raising both usability and compliance 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'/api/v1/ehr/12':32 '/docs':188 '/ehr/12':213 '/pricing':189 '/readme':192 '0.02':10,24,91,120 '000':107 '0x8335':112 '20':106 '2913':113 '6':116 'EHR API' 'accept':162 'across':94 'advertis':88,128 'api':49,125 'appear':60 'application/json':167 'author':151 'avail':182 'base':8,22,55,108,115 'base-network' 'behind':82 'caller':140 'caution':244 'challeng':101 'collect':40 'complianc':234 'confirm':102 'connect':198 'consider':235 'contain':147 'content':204 'crawl':70,185 'data':5,19,67,80,212,227,251 'decim':117 'detail':74 'document':71,177,224 'ehr':4,18,66 'ehr-data' 'electron':63 'electronic health record' 'endpoint':6,20,30,59,97,161,207 'entir':135 'equal':119 'exampl':180 'exercis':243 'field':78 'flat':90 'fulfil':155 'gap':239 'gate':3,17 'handl':134 'header':146 'health':64,210 'health record endpoint' 'howev':168 'inform':220 'integr':253 'involv':216 'json-response' 'key':126 'lack':222 'limit':131 'lowpaymentfee.com':37 'maxamountrequir':104 'may':215 'medical data API' 'natur':248 'network':56 'no-api-key' 'openapi':172 'page':186,193 'part':34 'particular':84 'path':208 'pay':9,23,46 'pay-per-call health data' 'pay-per-request':45 'payload':181 'payment':132,145,150 'per':11,25,47,92 'platform':38,87,122 'post':163 'prompt':200 'prospect':240 'protocol':44,139 'proven':231 'provid':72 'rate':130 'record':65,211 'regul':217 'request':12,26,48,93,157,164 'request/response':175 'requir':123 'resourc':85 'return':166,195,229 'schema':77,176 'send':141 'sensit':219 'serv':62 'server':154 'settl':50 'sign':149 'signific':238 'sourc':81 'spec':173 'specif':58 'substant':203 'suggest':209 'though':68 'unit':109 'upon':158 'usdc':14,28,52,111 'usdc-settlement' 'user':241 'verif':159 'verifi':246 'via':136 'wallet':199 'x':144 'x-payment':143 'x402':2,16,43,100,138 'x402 EHR' 'x402-gated':1,15 'x402-payment' 'x402-protocol':42","prices":[{"id":"f4b3809a-6d2d-4997-b461-142c1f4632df","listingId":"30891787-56de-433d-8e37-ce54be94c07a","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/12","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:09.680Z"}],"sources":[{"listingId":"30891787-56de-433d-8e37-ce54be94c07a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/ehr/12","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:09.680Z","lastSeenAt":"2026-04-22T19:32:39.209Z"}],"details":{"listingId":"30891787-56de-433d-8e37-ce54be94c07a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/ehr/12 \\\n  -H \"X-PAYMENT: <x402-signed-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 maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network","source_url":"https://lowpaymentfee.com/api/v1/ehr/12"},{"claim":"The platform advertises $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The endpoint accepts POST method and returns application/json","source_url":"https://lowpaymentfee.com/api/v1/ehr/12"}],"useCases":["Retrieving electronic health record data for a specific resource (ID 12)","Agent-driven health data lookups with per-request crypto payment","Integrating EHR data into workflows without subscription or API key management"],"bestFor":["Developers needing on-demand EHR data access without subscriptions","AI agents that can settle x402 payments on Base","Prototyping health data integrations with minimal setup"],"notFor":["Production healthcare applications requiring HIPAA-compliant, audited data pipelines","Users who need detailed API documentation or guaranteed SLAs","Anyone unable to transact in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:23.182Z"},"updatedAt":"2026-04-22T19:32:39.209Z"}}