{"id":"288a171b-670e-4341-b447-ead544696027","shortId":"XGRhWk","kind":"x402","title":"x402-gated EHR endpoint on Base, pay $0.02 per request in USDC — no API keys required.","tagline":"x402-gated EHR endpoint on Base, pay $0.02 per request in USDC — no API keys required.","description":"This endpoint at lowpaymentfee.com provides premium API access to an Electronic Health Record (EHR) resource via the x402 payment protocol. The specific resource path `/api/v1/ehr/5` suggests retrieval or interaction with a particular EHR record (ID 5). Payment is settled on the Base network using USDC (contract 0x8335…2913) at a cost of $0.02 per request (20,000 base units with 6 decimals). The endpoint accepts POST requests and returns application/json.\n\nThe broader lowpaymentfee.com platform advertises a wide catalog of x402-gated APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced uniformly at $0.02 per call. The platform emphasizes a no-API-key, no-rate-limit, pay-per-use model with instant access. However, documentation beyond the landing page is essentially empty (all doc/pricing/README pages only show a \"Connect wallet\" prompt), so there is no detailed schema, field-level documentation, or example responses available for this specific EHR endpoint.\n\nBecause the endpoint path references EHR (Electronic Health Records), this likely involves health-related data. No information is provided about data provenance, compliance (HIPAA, etc.), or whether the data is synthetic/demo versus real patient records. Consumers should exercise caution and verify the nature of the data before relying on it for any health-related application.","tags":[],"capabilities":["x402-payment","ehr-data","usdc-base-network","pay-per-request","no-api-key","json-response","post-method"],"categories":["health","data"],"synonyms":["electronic health record API","EHR endpoint","health data API","medical record API","x402 health API","pay-per-call EHR","Base USDC API"],"warnings":["No documentation available — all doc pages show only 'Connect wallet' with no content","EHR (Electronic Health Record) data may be subject to HIPAA or other health data regulations; no compliance information is provided","No request or response schema is documented for this endpoint","Unknown whether data is real patient data or synthetic/demo data","The specific resource '/api/v1/ehr/5' is not listed on the provider's landing page catalog, raising questions about its intended availability"],"endpointUrl":"https://lowpaymentfee.com/api/v1/ehr/5","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/5","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 captured) and pricing is clear ($0.02 USDC on Base), but there is zero documentation for the EHR endpoint — no request/response schema, no examples, no explanation of what data is returned. All documentation pages render only a wallet-connect prompt. The health data context raises compliance concerns that are completely 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'0.02':9,26,87,131 '000':91 '0x8335':81 '20':90 '2913':82 '5':70 '6':95 'Base USDC API' 'EHR endpoint' 'accept':99 'access':42,153 'advertis':109 'ai/ml':121 'analyt':120 'api':15,32,41,117,140 'applic':247 'application/json':104 'avail':185 'base':7,24,76,92 'beyond':156 'broader':106 'call':133 'catalog':112 'caution':230 'complianc':214 'connect':169 'consum':227 'contract':80 'cost':85 'data':119,206,212,220,237 'decim':96 'detail':176 'doc/pricing/readme':164 'document':155,181 'ehr':4,21,48,67,189,196 'ehr-data' 'electron':45,197 'electronic health record API' 'emphas':136 'empti':162 'endpoint':5,22,36,98,190,193 'essenti':161 'etc':216 'exampl':183 'exercis':229 'field':179 'field-level':178 'finance/web3':123 'gate':3,20,116 'health':46,198,204,245 'health data API' 'health-rel':203,244 'hipaa':215 'howev':154 'id':69 'infer':122 'inform':208 'infrastructur':125 'instant':152 'interact':63 'involv':202 'json-response' 'key':16,33,141 'land':158 'level':180 'like':201 'limit':145 'lowpaymentfee.com':38,107 'medical record API' 'model':150 'natur':234 'network':77 'no-api-key':138 'no-rate-limit':142 'page':159,165 'particular':66 'path':58,194 'patient':225 'pay':8,25,147 'pay-per-call EHR' 'pay-per-request' 'pay-per-us':146 'payment':53,71 'per':10,27,88,132,148 'platform':108,135 'post':100 'post-method' 'premium':40 'price':128 'prompt':171 'protocol':54 'proven':213 'provid':39,210 'rate':144 'real':224 'record':47,68,199,226 'refer':195 'relat':205,246 'reli':239 'request':11,28,89,101 'requir':17,34 'resourc':49,57 'respons':184 'retriev':61 'return':103 'schema':177 'settl':73 'show':167 'span':118 'specif':56,188 'suggest':60 'synthetic/demo':222 'uniform':129 'unit':93 'usdc':13,30,79 'usdc-base-network' 'use':78,149 'util':126 'verifi':232 'versus':223 'via':50 'wallet':170 'whether':218 'wide':111 'x402':2,19,52,115 'x402 health API' 'x402-gated':1,18,114 'x402-payment'","prices":[{"id":"cd3a1fb0-5e34-4eef-98b5-134f58f1a9b4","listingId":"288a171b-670e-4341-b447-ead544696027","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/5","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:10.196Z"}],"sources":[{"listingId":"288a171b-670e-4341-b447-ead544696027","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/ehr/5","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:10.196Z","lastSeenAt":"2026-04-22T15:02:40.847Z"}],"details":{"listingId":"288a171b-670e-4341-b447-ead544696027","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/ehr/5 \\\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":"Endpoint returns 402 with x402 challenge advertising USDC on Base network at 20000 base units","source_url":"https://lowpaymentfee.com/api/v1/ehr/5"},{"claim":"Platform advertises $0.02 per request, no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/ehr/5"},{"claim":"Documentation, pricing, and README pages only display 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving electronic health record data for a specific patient or record ID","Integrating EHR data into health analytics pipelines with per-request billing","Agent-driven health data lookups without pre-provisioned API keys"],"bestFor":["Developers needing on-demand EHR data access without subscription commitments","AI agents that need to pay per call for health record lookups","Prototyping health data integrations with minimal setup"],"notFor":["Production healthcare applications requiring HIPAA-compliant, audited data pipelines","Bulk EHR data exports where per-request pricing would be cost-prohibitive","Use cases requiring detailed API documentation and guaranteed SLAs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:22.515Z"},"updatedAt":"2026-04-22T15:02:40.847Z"}}