{"id":"111bd92c-144a-4ad1-8a37-e4283844407f","shortId":"QkfWFM","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 lowpaymentfee.com provides access to a medical records resource (record ID 80) via the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (USD Coin) at a cost of $0.02 per request (20,000 base units with 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.\n\nThe provider, lowpaymentfee.com, hosts a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services, all priced at $0.02 per request. This specific endpoint falls under a \"medical/records\" path, but no documentation, schema, or sample responses are available to clarify what data fields are returned or what input the POST body expects. The endpoint is live and returns a well-formed 402 challenge, confirming it is operational.\n\nBecause no OpenAPI spec, request/response schema, or detailed documentation was found, the exact structure of requests and responses is unknown. The \"medical\" category in the URL path suggests health-related data, which may carry regulatory implications (e.g., HIPAA in the US). Prospective callers should exercise caution and verify compliance requirements before integrating.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-call","medical-records","json-response","no-api-key","post-method"],"categories":["health","data"],"synonyms":["medical records API","health data endpoint","x402 medical API","pay-per-call health records","USDC medical data","Base network API","lowpaymentfee medical"],"warnings":["No request or response schema available — input/output structure is completely unknown","Endpoint path suggests medical/health data which may be subject to HIPAA or other healthcare regulations","No documentation beyond the landing page listing; /api, /pricing, and /README pages are empty (wallet-connect only)","Record ID 80 is hardcoded in the endpoint path; unclear if other record IDs are accessible or what they represent"],"endpointUrl":"https://lowpaymentfee.com/api/v1/medical/records/80","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/80","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid 402 challenge, but there is no OpenAPI spec, no request/response schema, no documentation, and no example payloads. The medical records path is undocumented and the data returned is entirely unknown. The regulated health-data category adds 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'000':74 '20':73 '402':172 '6':78 '80':42 'Base network API' 'USDC medical data' 'accept':49 'access':34 'ai/ml':118 'analyt':117 'api':81,114 'attach':90 'avail':147 'base':9,23,60,75 'base-network' 'bodi':160 'broad':107 'call':4,18,113 'caller':88,221 'carri':212 'catalog':108 'categori':200 'caution':224 'challeng':173 'clarifi':149 'coin':65 'complianc':227 'confirm':174 'cost':68 'crypto':121 'data':116,151,209 'decim':79 'detail':185 'document':141,186 'e.g':215 'endpoint':7,21,30,133,163 'exact':190 'exercis':223 'expect':161 'fall':134 'field':152 'financ':120 'form':171 'found':188 'header':95 'health':207 'health data endpoint' 'health-rel':206 'hipaa':216 'host':105 'id':41 'implic':214 'infer':119 'input':157 'integr':230 'json':54 'json-response' 'key':82 'limit':85 'live':165 'lowpaymentfee medical' 'lowpaymentfee.com':32,104 'may':211 'medic':5,19,37,199 'medical records API' 'medical-records' 'medical/records':137 'network':61 'no-api-key' 'openapi':180 'oper':177 'path':138,204 'pay':2,16,111 'pay-per-cal':1,15,110 'pay-per-call' 'pay-per-call health records' 'payment':46,55,94,100 'per':3,17,71,112,129 'post':50,159 'post-method' 'price':126 'proof':101 'prospect':220 'protocol':47 'provid':33,103 'rate':84 'record':6,20,38,40 'regulatori':213 'relat':208 'request':51,72,130,193 'request/response':182 'requir':87,228 'resourc':39 'respons':145,195 'return':53,154,167 'sampl':144 'schema':142,183 'servic':124 'settl':12,26,57 'simpli':89 'span':115 'spec':181 'specif':132 'structur':191 'suggest':205 'unit':76 'unknown':197 'url':203 'us':219 'usd':64 'usdc':14,28,63 'usdc-settlement' 'use':62 'util':123 'valid':98 'verifi':226 'via':10,24,43 'well':170 'well-form':169 'x':93 'x-payment':92 'x402':11,25,45,99 'x402 medical API' 'x402-payment'","prices":[{"id":"fb761edb-23e8-40bc-9cc4-5e75c735928e","listingId":"111bd92c-144a-4ad1-8a37-e4283844407f","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/80","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:25.622Z"}],"sources":[{"listingId":"111bd92c-144a-4ad1-8a37-e4283844407f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/medical/records/80","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:25.622Z","lastSeenAt":"2026-04-22T02:32:05.674Z"}],"details":{"listingId":"111bd92c-144a-4ad1-8a37-e4283844407f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/medical/records/80 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_proof>\"","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 x402Version 1, accepting USDC on Base network with maxAmountRequired of 20000 base units","source_url":"https://lowpaymentfee.com/api/v1/medical/records/80"},{"claim":"All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on the Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/medical/records/80"}],"useCases":["Retrieving medical record data for record ID 80 via a single paid API call","Integrating health data into agent workflows that support x402 micropayments","Programmatic access to medical records without traditional API key provisioning"],"bestFor":["Agents or applications that can settle x402 payments in USDC on Base","Developers needing quick, keyless access to medical record data","Micropayment-based data retrieval without subscription commitments"],"notFor":["Use cases requiring documented request/response schemas before integration","Applications subject to strict healthcare data regulations (HIPAA) without prior compliance verification","Users who cannot transact in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:02.346Z"},"updatedAt":"2026-04-22T02:32:05.674Z"}}