{"id":"88269659-2cbd-4abe-bdf6-be663b29d134","shortId":"EeeUGN","kind":"x402","title":"x402-gated Stripe invoice endpoint on Base, pay $0.02 per request in USDC.","tagline":"x402-gated Stripe invoice endpoint on Base, pay $0.02 per request in USDC.","description":"This endpoint at lowpaymentfee.com provides access to a Stripe invoice resource (invoice ID 69) via the x402 payment protocol. It is part of a broader platform offering pay-per-request APIs across data analytics, AI/ML inference, finance, and utility categories — all gated behind x402 challenges on the Base network using USDC.\n\nThe specific endpoint `/api/v1/stripe/invoices/69` accepts POST requests and returns JSON. Payment is settled on-chain on Base using USDC (contract 0x8335…2913) with an exact-scheme challenge. The maximum amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 per request — consistent with the platform's uniform $0.02/request pricing across all endpoints. The payment is directed to address 0x1A2B…85F3 with a 300-second timeout.\n\nThe platform advertises no API keys, no rate limits, and instant access. Documentation pages (/docs, /pricing, /README) appear to require a wallet connection and contain no substantive content when crawled without one. No OpenAPI schema, request/response examples, or detailed documentation about what the Stripe invoices endpoint actually returns were found in the crawl. The endpoint is live and responding with a valid x402 challenge.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","stripe-invoice-access","pay-per-request","json-response","post-method"],"categories":["finance","infrastructure"],"synonyms":["stripe invoice API","x402 paid API","USDC micropayment API","pay-per-call API","Base network API","crypto payment gateway","lowpaymentfee"],"warnings":["No documentation available — /docs, /pricing, /README all require wallet connection and return no content when crawled.","No OpenAPI or schema describing request parameters or response format for this endpoint.","The specific purpose and data returned by /api/v1/stripe/invoices/69 is undocumented; 'Premium API Access' is a generic label.","This endpoint references Stripe invoices but it is unclear whether it proxies real Stripe data or is a demo/placeholder."],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/invoices/69","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/stripe/invoices/69","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live with a valid x402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages require wallet connection, yielding no useful content. The purpose of this specific Stripe invoices endpoint is unclear beyond its 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'/docs':167 '/pricing':168 '/readme':169 '/request':135 '0.02':10,24,125,134 '000':116 '0x1a2b':146 '0x8335':102 '20':115 '2913':103 '300':150 '6':121 '69':42 '85f3':147 'Base network API' 'USDC micropayment API' 'accept':85 'access':34,164 'across':61,137 'actual':199 'address':145 'advertis':155 'ai/ml':64 'amount':112 'analyt':63 'api':60,157 'appear':170 'base':8,22,77,98,117 'base-network' 'behind':72 'broader':53 'categori':69 'chain':96 'challeng':74,109,216 'connect':175 'consist':128 'contain':177 'content':180 'contract':101 'crawl':182,205 'crypto payment gateway' 'data':62 'decim':122 'detail':191 'direct':143 'document':165,192 'endpoint':6,20,30,83,139,198,207 'equal':124 'exact':107 'exact-schem':106 'exampl':189 'financ':66 'found':202 'gate':3,17,71 'id':41 'infer':65 'instant':163 'invoic':5,19,38,40,197 'json':90 'json-response' 'key':158 'limit':161 'live':209 'lowpaymentfee' 'lowpaymentfee.com':32 'maximum':111 'network':78 'offer':55 'on-chain':94 'one':184 'openapi':186 'page':166 'part':50 'pay':9,23,57 'pay-per-call API' 'pay-per-request':56 'payment':46,91,141 'per':11,25,58,126 'platform':54,131,154 'post':86 'post-method' 'price':136 'protocol':47 'provid':33 'rate':160 'request':12,26,59,87,127 'request/response':188 'requir':113,172 'resourc':39 'respond':211 'return':89,200 'schema':187 'scheme':108 'second':151 'settl':93 'specif':82 'stripe':4,18,37,196 'stripe invoice API' 'stripe-invoice-access' 'substant':179 'timeout':152 'uniform':133 'unit':118 'usdc':14,28,80,100,120 'usdc-settlement' 'use':79,99 'util':68 'valid':214 'via':43 'wallet':174 'without':183 'x402':2,16,45,73,215 'x402 paid API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"e5850d44-ef84-4cfc-b71d-37767fac2259","listingId":"88269659-2cbd-4abe-bdf6-be663b29d134","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/stripe/invoices/69","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:56:09.698Z"}],"sources":[{"listingId":"88269659-2cbd-4abe-bdf6-be663b29d134","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/invoices/69","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:56:09.698Z","lastSeenAt":"2026-04-25T05:33:15.624Z"}],"details":{"listingId":"88269659-2cbd-4abe-bdf6-be663b29d134","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/69 \\\n  -H \"X-PAYMENT: <x402-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 endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 USDC base units on Base network","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/69"},{"claim":"Platform-wide pricing is $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/69"}],"useCases":["Retrieving Stripe invoice data via a single micropayment without API key registration","Programmatic access to invoice information for agents that can settle x402 payments","Integrating pay-per-request invoice lookups into automated financial workflows"],"bestFor":["Agents or bots that can settle x402 USDC payments on Base","Developers wanting keyless, pay-as-you-go access to invoice data","Low-volume consumers who prefer per-call pricing over subscriptions"],"notFor":["Users who need free or traditional API-key-based access","High-volume consumers who would benefit from bulk pricing or subscriptions","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:50.541Z"},"updatedAt":"2026-04-25T05:33:15.624Z"}}