{"id":"082f5370-85d2-4372-a390-ac64d6d53fd7","shortId":"cQqJQg","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 x402-protocol access to a Stripe invoice resource (invoice ID 96). It is part of a broader platform offering pay-per-request APIs across data analytics, AI/ML, finance, and utility categories — all gated behind x402 payment challenges settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/stripe/invoices/96` is labeled \"Premium API Access\" and accepts POST requests. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335… on Base), which equals $0.02 per request (USDC uses 6 decimals). Payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout. The platform advertises no API keys, no rate limits, and instant access.\n\nDocumentation is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional content. There is no OpenAPI schema, no request/response examples, and no description of what data the invoice endpoint actually returns. The platform lists many other endpoints (analytics, AI, finance, infrastructure) at the same $0.02 price point, but none have documented schemas or sample payloads. The actual functionality behind this specific Stripe invoices endpoint is unclear from available materials.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","stripe-invoices","post-method"],"categories":["finance","infrastructure"],"synonyms":["stripe invoice API","x402 paid API","USDC micropayment API","Base network API","pay-per-call API","lowpaymentfee","crypto payment gateway"],"warnings":["No API documentation available — all doc pages render only 'Connect wallet'","No OpenAPI or request/response schema provided","Actual functionality of the /stripe/invoices/96 endpoint is undocumented and unclear","No examples of what data is returned by this endpoint","The platform lists many endpoints but none appear to have documented behavior"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/invoices/96","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/96","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 x402 challenge, but documentation is essentially nonexistent — all doc pages show only 'Connect wallet'. There is no OpenAPI schema, no request/response examples, and the actual functionality of this Stripe invoices endpoint is undocumented. Pricing is clear ($0.02/request) but the value proposition is 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'0.02':10,24,112,196 '000':102 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':124 '0x8335':107 '20':101 '300':127 '6':117 '96':45 'Base network API' 'USDC micropayment API' 'accept':90 'access':37,88,141 'across':59 'actual':181,208 'addit':162 'address':123 'advertis':96,132 'ai':190 'ai/ml':62 'analyt':61,189 'api':58,87,134,148 'avail':219 'base':8,22,78,103,109 'base-network' 'behind':69,210 'broader':51 'categori':66 'challeng':72,95 'connect':157 'content':163 'cost':99 'crypto payment gateway' 'data':60,177 'decim':118 'descript':174 'doc':147 'document':142,202 'endpoint':6,20,30,82,180,188,215 'equal':111 'exampl':171 'extrem':144 'financ':63,191 'function':209 'gate':3,17,68 'id':44 'infrastructur':192 'instant':140 'invoic':5,19,41,43,179,214 'key':135 'label':85 'limit':138 'list':185 'lowpaymentfee' 'lowpaymentfee.com':32 'mani':186 'materi':220 'maximum':98 'network':79 'none':200 'offer':53 'openapi':167 'page':152 'part':48 'pay':9,23,55 'pay-per-call API' 'pay-per-request':54 'payload':206 'payment':71,119 'per':11,25,56,113 'platform':52,131,184 'point':198 'post':91 'post-method' 'premium':86 'price':149,197 'prompt':159 'protocol':36 'provid':33 'rate':137 'readm':151 'render':154 'request':12,26,57,92,114 'request/response':170 'resourc':42 'return':182 'sampl':205 'schema':168,203 'second':128 'sent':121 'settl':73 'spars':145 'specif':81,212 'stripe':4,18,40,213 'stripe invoice API' 'stripe-invoices' 'timeout':129 'unclear':217 'unit':104 'usdc':14,28,75,106,115 'usdc-settlement' 'use':116 'util':65 'wallet':158 'x402':2,16,35,70,94 'x402 paid API' 'x402-gated':1,15 'x402-payment' 'x402-protocol':34","prices":[{"id":"e650252b-042b-49ea-bd1e-4e4452e0fa4b","listingId":"082f5370-85d2-4372-a390-ac64d6d53fd7","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/96","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:56:12.685Z"}],"sources":[{"listingId":"082f5370-85d2-4372-a390-ac64d6d53fd7","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/invoices/96","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:56:12.685Z","lastSeenAt":"2026-04-25T05:33:15.714Z"}],"details":{"listingId":"082f5370-85d2-4372-a390-ac64d6d53fd7","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/96 \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\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 x402 challenge advertises maxAmountRequired of 20000 base units of USDC on Base network with a 300-second timeout","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/96"},{"claim":"Platform advertises $0.02 per request, no API keys, no rate limits, instant access, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, API, pricing, and README pages all render only 'Connect wallet' with no additional content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving or interacting with Stripe invoice data via a crypto-settled pay-per-request model","Agent-driven invoice access without API key registration","Programmatic invoice lookups settled in USDC on Base"],"bestFor":["Developers wanting keyless, pay-per-use access to invoice data","AI agents that can settle x402 payments in USDC on Base","Users who prefer crypto micropayments over subscription billing"],"notFor":["Anyone needing detailed API documentation or response schemas before integrating","High-volume invoice processing where per-request fees add up","Users without USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:50.416Z"},"updatedAt":"2026-04-25T05:33:15.714Z"}}