{"id":"5d33c66b-49f5-475c-bc49-f823bd3fd49e","shortId":"ZjDwaq","kind":"x402","title":"Pay-per-call Stripe invoice API on Base network via x402 protocol at $0.02/request.","tagline":"Pay-per-call Stripe invoice API on Base network via x402 protocol at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides premium API access to a Stripe invoices resource (invoice #163) via the x402 payment protocol. It accepts POST requests and settles payments in USDC on the Base network. The cost per request is 20,000 base units of USDC (6 decimals), which equals $0.02 per call.\n\nThe provider operates a broader platform offering multiple pay-per-call APIs across categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request. The platform advertises no API keys, no rate limits, and instant access. Payments are made via the x402 protocol's X-PAYMENT header using USDC on Base.\n\nThe specific endpoint `/api/v1/stripe/invoices/163` appears to be a Stripe invoice-related resource, though the exact response payload and functionality are not documented beyond the generic \"Premium API Access\" label. No OpenAPI schema, detailed documentation, or example responses were available from the crawled pages (most pages only showed a \"Connect wallet\" prompt).","tags":[],"capabilities":["x402-payment","usdc-base-network","pay-per-call","stripe-invoices","http-post"],"categories":["finance","infrastructure"],"synonyms":["stripe invoice api","x402 payment endpoint","pay-per-request api","usdc micropayment","base network api","lowpaymentfee"],"warnings":["No API documentation available — most pages only show 'Connect wallet' prompt","Exact functionality and response schema for /api/v1/stripe/invoices/163 is unknown","No OpenAPI spec or detailed endpoint description provided by the provider","The endpoint references a specific invoice ID (163), which may be a demo or placeholder"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/invoices/163","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/163","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no example request/response, and the actual functionality behind 'Premium API Access' for a specific Stripe invoice ID is 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'/request':16,32 '0.02':15,31,81,113 '000':72 '163':47 '20':71 '6':77 'accept':54 'access':40,127,172 'across':97 'advertis':118 'ai':102 'analyt':101 'api':7,23,39,96,120,171 'appear':148 'avail':183 'base':9,25,64,73,143 'base network api' 'beyond':167 'broader':88 'call':4,20,83,95 'categori':98 'connect':193 'cost':67 'crawl':186 'data':100 'decim':78 'detail':177 'document':166,178 'endpoint':34,146 'equal':80 'exact':159 'exampl':180 'financ':105 'function':163 'generic':169 'header':139 'http-post' 'includ':99 'infrastructur':108 'instant':126 'invoic':6,22,44,46,154 'invoice-rel':153 'key':121 'label':173 'learn':104 'limit':124 'lowpaymentfee' 'lowpaymentfee.com':36 'machin':103 'made':130 'multipl':91 'network':10,26,65 'offer':90 'openapi':175 'oper':86 'page':187,189 'pay':2,18,93 'pay-per-cal':1,17,92 'pay-per-call' 'pay-per-request api' 'payload':161 'payment':51,59,128,138 'per':3,19,68,82,94,114 'platform':89,117 'post':55 'premium':38,170 'price':111 'prompt':195 'protocol':13,29,52,134 'provid':37,85 'rate':123 'relat':155 'request':56,69,115 'resourc':45,156 'respons':160,181 'schema':176 'settl':58 'show':191 'specif':145 'stripe':5,21,43,152 'stripe invoice api' 'stripe-invoices' 'though':157 'unit':74 'usdc':61,76,141 'usdc micropayment' 'usdc-base-network' 'use':140 'util':109 'via':11,27,48,131 'wallet':194 'web3':106 'x':137 'x-payment':136 'x402':12,28,50,133 'x402 payment endpoint' 'x402-payment'","prices":[{"id":"6ef086cd-e61f-4195-ba44-8be9a1a89291","listingId":"5d33c66b-49f5-475c-bc49-f823bd3fd49e","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/163","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:55:40.855Z"}],"sources":[{"listingId":"5d33c66b-49f5-475c-bc49-f823bd3fd49e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/invoices/163","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:55:40.855Z","lastSeenAt":"2026-04-25T13:03:04.248Z"}],"details":{"listingId":"5d33c66b-49f5-475c-bc49-f823bd3fd49e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/163 \\\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":"Endpoint returns 402 with x402 challenge accepting USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/163"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/163"}],"useCases":["Programmatically accessing Stripe invoice data without API key management","Agent-driven payment workflows that settle in USDC on Base","Integrating pay-per-call invoice retrieval into automated pipelines"],"bestFor":["Developers wanting keyless API access with crypto micropayments","AI agents that can settle x402 challenges autonomously","Users who prefer pay-as-you-go pricing without subscriptions"],"notFor":["Users who need free or traditional API-key-based access","High-volume batch processing where per-call costs add up","Anyone needing detailed documentation or guaranteed SLAs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:51.828Z"},"updatedAt":"2026-04-25T13:03:04.248Z"}}