{"id":"1fd12293-0cfd-4d18-a123-d55bd4744ada","shortId":"ZfmHxS","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/17` is part of the lowpaymentfee.com platform, which offers a broad catalog of pay-per-request APIs accessible via the x402 payment protocol 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 uniform $0.02 per request pricing model across all its endpoints.\n\nPayment is handled via x402 with USDC on Base (contract 0x8335…2913). The 402 challenge confirms the endpoint is live and accepts POST requests with a max amount of 20,000 base units of USDC (6 decimals), which equals $0.02. No API keys or rate limits are advertised — access is granted purely through per-call micropayment. The timeout for payment settlement is 300 seconds.\n\nImportant caveats: the endpoint's actual response schema is undocumented. The crawled site pages beyond the landing page returned only \"Connect wallet\" stubs with no meaningful documentation. The EHR endpoint is not listed among the publicly advertised API categories (Data & Analytics, AI & ML, Finance & Web3, Infrastructure), which raises questions about whether it is a production resource or a test/demo endpoint. Users working with health data should be aware of potential regulatory implications (HIPAA, etc.) that are not addressed anywhere in the available materials.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","ehr-data","http-post"],"categories":["health","data"],"synonyms":["electronic health record API","EHR endpoint","medical data API","health record access","lowpaymentfee EHR","x402 health data"],"warnings":["No documentation exists for the /api/v1/ehr/17 endpoint — request body and response schema are completely unknown.","This endpoint is not listed among the provider's publicly advertised API categories, raising questions about its status.","EHR (Electronic Health Record) data may be subject to HIPAA or other health data regulations; no compliance information is provided.","All site pages beyond the landing page returned only 'Connect wallet' with no usable content.","No OpenAPI spec, AI plugin manifest, or agents.txt found."],"endpointUrl":"https://lowpaymentfee.com/api/v1/ehr/17","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/17","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 confirmed) and pricing is clear ($0.02 USDC on Base), but there is zero documentation on the EHR endpoint's request/response schema, data source, or purpose. The EHR path is not listed among the site's advertised APIs, and all doc/pricing/API pages returned only 'Connect wallet' stubs. This is effectively a stub 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'/request':17,34 '0.02':16,33,100,148 '000':139 '0x8335':119 '20':138 '2913':120 '300':172 '402':122 '6':144 'EHR endpoint' 'accept':130 'access':56,157 'across':105 'actual':179 'address':251 'advertis':97,156,210 'ai':215 'among':207 'amount':136 'analyt':214 'anywher':252 'api':55,150,211 'appear':69 'avail':255 'awar':241 'base':9,26,64,117,140 'behind':91 'beyond':188 'broad':48 'call':4,21,164 'catalog':49 'categori':212 'caveat':175 'challeng':123 'confirm':124 'connect':194 'contract':118 'crawl':79,185 'data':6,23,76,89,213,238 'decim':145 'detail':83 'document':80,200 'ehr':5,22,75,202 'ehr-data' 'electron':72 'electronic health record API' 'endpoint':7,24,36,68,108,126,177,203,233 'equal':147 'etc':247 'field':87 'financ':217 'grant':159 'handl':111 'health':73,237 'health record access' 'hipaa':246 'http-post' 'implic':245 'import':174 'infrastructur':219 'key':151 'land':190 'limit':154 'list':206 'live':128 'lowpaymentfee EHR' 'lowpaymentfee.com':43 'materi':256 'max':135 'meaning':199 'medical data API' 'micropay':165 'ml':216 'model':104 'network':65 'offer':46 'page':187,191 'part':40 'particular':93 'pay':2,19,52 'pay-per-cal':1,18 'pay-per-request':51 'payment':60,109,169 'per':3,20,53,101,163 'per-cal':162 'platform':44,96 'post':131 'potenti':243 'price':103 'product':228 'protocol':61 'provid':81 'public':209 'pure':160 'question':222 'rais':221 'rate':153 'record':74 'regulatori':244 'request':54,102,132 'resourc':94,229 'respons':180 'return':192 'schema':86,181 'second':173 'serv':71 'settl':12,29 'settlement':170 'site':186 'sourc':90 'specif':67 'stub':196 'test/demo':232 'though':77 'timeout':167 'undocu':183 'uniform':99 'unit':141 'usdc':14,31,115,143 'usdc-base' 'user':234 'via':10,27,57,112 'wallet':195 'web3':218 'whether':224 'work':235 'x402':11,28,59,113 'x402 health data' 'x402-payment'","prices":[{"id":"37a21b35-8b9c-4de0-87db-b8473dfa8e09","listingId":"1fd12293-0cfd-4d18-a123-d55bd4744ada","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/17","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:09.598Z"}],"sources":[{"listingId":"1fd12293-0cfd-4d18-a123-d55bd4744ada","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/ehr/17","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:09.598Z","lastSeenAt":"2026-04-22T20:01:53.179Z"}],"details":{"listingId":"1fd12293-0cfd-4d18-a123-d55bd4744ada","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/ehr/17 \\\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 with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/ehr/17"},{"claim":"The platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/ehr/17"}],"useCases":["Retrieving electronic health record data for a specific resource (ID 17)","Integrating EHR data into agent workflows with per-call micropayments","Accessing health data without API key registration"],"bestFor":["Developers needing on-demand EHR data access without subscription commitments","Agent-based systems that can settle x402 payments in USDC on Base","Prototyping health data integrations with low per-call cost"],"notFor":["Production healthcare applications requiring HIPAA-compliant, audited data pipelines","Users who need detailed documentation or guaranteed SLAs for health data","Bulk retrieval of large EHR datasets (pay-per-request model may be costly at scale)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:23.293Z"},"updatedAt":"2026-04-22T20:01:53.179Z"}}