{"id":"491f7ef4-43f0-4605-b214-b59283705bd4","shortId":"NxdV9c","kind":"x402","title":"Insurance claims data endpoint on Base, paid per-request via x402 in USDC.","tagline":"Insurance claims data endpoint on Base, paid per-request via x402 in USDC.","description":"This endpoint at lowpaymentfee.com provides access to insurance claims data (specifically claim ID 48) via an x402 pay-per-call model. Payment is settled in USDC on the Base network. The x402 challenge indicates a maximum cost of $0.02 per request (20,000 base units of USDC 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 site (lowpaymentfee.com) hosts a broad catalog of pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services, all priced uniformly at $0.02 per call. This specific endpoint falls under what appears to be an insurance domain, though the site's landing page does not list insurance endpoints among its featured categories. No OpenAPI schema, request/response examples, or detailed documentation were found for this endpoint, so the exact request body format and response structure are unknown.\n\nThe endpoint is live and returns a well-formed x402 challenge (HTTP 402) when called without payment. It accepts POST requests and returns application/json. The payment is routed to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","insurance-claims","json-api","no-api-key"],"categories":["finance","data"],"synonyms":["insurance claim lookup","claims data API","x402 insurance","pay-per-call insurance","USDC API","Base network API","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available for this endpoint","Insurance claims endpoint is not listed among the provider's advertised API categories — unclear if it returns real data","Request body format and response structure are completely unknown","The endpoint path references a specific claim ID (48); it is unclear whether other IDs are supported or what data is returned"],"endpointUrl":"https://lowpaymentfee.com/api/v1/insurance/claims/48","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/insurance/claims/48","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is no OpenAPI schema, no documented request/response format, and the insurance claims category is not listed on the provider's own landing page. Effectively a stub with confirmed 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'000':72 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':215 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':219 '20':71 '402':197 '48':42 '6':78 'Base network API' 'USDC API' 'accept':203 'access':34 'address':214 'ai/ml':119 'among':156 'analyt':118 'api':81,115 'appear':139 'application/json':208 'attach':90 'base':6,20,58,73,221 'bodi':177 'broad':108 'call':49,132,199 'caller':88 'catalog':109 'categori':159 'challeng':62,195 'claim':2,16,37,40 'claims data API' 'contract':218 'cost':66 'crypto':122 'data':3,17,38,117 'decim':79 'detail':166 'document':167 'domain':144 'endpoint':4,18,30,135,155,172,185 'exact':175 'exampl':164 'fall':136 'featur':158 'financ':121 'form':193 'format':178 'found':169 'header':95 'host':106 'http':196 'id':41 'indic':63 'infer':120 'insur':1,15,36,143,154 'insurance claim lookup' 'insurance-claims' 'json-api' 'key':82 'land':149 'limit':85 'list':153 'live':187 'lowpaymentfee' 'lowpaymentfee.com':32,105 'maximum':65 'model':50 'network':59 'no-api-key' 'openapi':161 'page':150 'paid':7,21 'pay':47,112 'pay-per-cal':46 'pay-per-call insurance' 'pay-per-request':111 'payment':51,94,100,201,210 'per':9,23,48,69,113,131 'per-request':8,22 'post':204 'price':127 'proof':101 'provid':33,103 'rate':84 'request':10,24,70,114,176,205 'request/response':163 'requir':87 'respons':180 'return':189,207 'rout':212 'schema':162 'servic':125 'settl':53 'simpli':89 'site':104,147 'span':116 'specif':39,134 'structur':181 'though':145 'uniform':128 'unit':74 'unknown':183 'usdc':14,28,55,76,217 'usdc-base' 'use':216 'util':124 'valid':98 'via':11,25,43 'well':192 'well-form':191 'without':200 'x':93 'x-payment':92 'x402':12,26,45,61,99,194 'x402 insurance' 'x402-payment'","prices":[{"id":"c8956282-29f5-486a-aa69-701dd034bc1e","listingId":"491f7ef4-43f0-4605-b214-b59283705bd4","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/insurance/claims/48","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:22.308Z"}],"sources":[{"listingId":"491f7ef4-43f0-4605-b214-b59283705bd4","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/insurance/claims/48","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:22.308Z","lastSeenAt":"2026-04-22T21:32:10.362Z"}],"details":{"listingId":"491f7ef4-43f0-4605-b214-b59283705bd4","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/insurance/claims/48 \\\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 x402 challenge advertises maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/insurance/claims/48"},{"claim":"The provider advertises $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/insurance/claims/48"}],"useCases":["Retrieving insurance claim details programmatically","Integrating insurance claims data into automated workflows","Agent-driven insurance data lookups with micropayments"],"bestFor":["Developers needing on-demand insurance claims data without subscription commitments","AI agents that can settle USDC payments on Base","Applications requiring low-cost, keyless API access to claims information"],"notFor":["Bulk retrieval of many insurance claims (no batch endpoint documented)","Users who cannot transact in USDC on Base network","Production use cases requiring detailed schema guarantees (no OpenAPI spec available)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:07.543Z"},"updatedAt":"2026-04-22T21:32:10.362Z"}}