{"id":"a55b2c15-764d-4a3d-86fa-fe585383c3d6","shortId":"dp8NfU","kind":"x402","title":"x402-gated Stripe invoice endpoint on Base, pay-per-call with USDC.","tagline":"x402-gated Stripe invoice endpoint on Base, pay-per-call with USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" behind an x402 payment wall. It is part of a broader platform offering pay-per-request APIs across data & analytics, AI/ML, finance/Web3, and infrastructure categories — all settled on the Base network using USDC.\n\nThe specific endpoint `/api/v1/stripe/invoices/2` accepts POST requests and is gated by an x402 exact-payment scheme. The maximum amount required is 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 response MIME type is application/json.\n\nThe platform advertises a uniform $0.02/request pricing model with no API keys, no rate limits, and instant access. However, the crawled documentation pages (docs, api, pricing, README) all returned only a \"Connect wallet\" prompt with no substantive content, so the actual request/response schema for this Stripe invoices endpoint is unknown. It is unclear what data this endpoint returns — the name suggests it may relate to Stripe invoice retrieval or creation, but no documentation confirms the request body format or response structure.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","stripe-invoices","json-api"],"categories":["finance","infrastructure"],"synonyms":["stripe invoice api","x402 api","pay per call api","usdc payment api","base network api","micropayment api","lowpaymentfee"],"warnings":["No API documentation available — all doc pages return only 'Connect wallet' with no content","Request body schema and response schema are completely unknown","The purpose of '/api/v1/stripe/invoices/2' is unclear — it may involve Stripe invoice data but this is unconfirmed","No OpenAPI spec or AI plugin manifest found"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/invoices/2","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/2","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/request in USDC on Base). However, there is no documentation, no request/response schema, and no examples available — the docs, pricing, and README pages all render only a wallet-connect prompt. The actual functionality of the Stripe invoices endpoint is 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'/request':134 '0.02':104,133 '000':94 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':116 '0x8335':99 '20':93 '300':119 '6':109 'accept':75 'access':36,146 'across':55 'actual':169 'address':115 'advertis':130 'ai/ml':58 'amount':90 'analyt':57 'api':35,54,139,153 'application/json':127 'base':8,22,67,95,101 'base network api' 'base-network' 'behind':37 'bodi':205 'broader':47 'call':12,26 'categori':62 'confirm':202 'connect':160 'content':166 'crawl':149 'creation':198 'data':56,183 'decim':110 'doc':152 'document':150,201 'endpoint':6,20,30,73,176,185 'equal':103 'exact':85 'exact-pay':84 'finance/web3':59 'format':206 'gate':3,17,80 'howev':147 'infrastructur':61 'instant':145 'invoic':5,19,175,195 'json-api' 'key':140 'limit':143 'lowpaymentfee' 'lowpaymentfee.com':32 'maximum':89 'may':191 'micropayment api' 'mime':124 'model':136 'name':188 'network':68 'offer':49 'page':151 'part':44 'pay':10,24,51 'pay per call api' 'pay-per-cal':9,23 'pay-per-request':50 'payment':40,86,111 'per':11,25,52,105 'platform':48,129 'post':76 'premium':34 'price':135,154 'prompt':162 'provid':33 'rate':142 'readm':155 'relat':192 'request':53,77,106,204 'request/response':170 'requir':91 'respons':123,208 'retriev':196 'return':157,186 'schema':171 'scheme':87 'second':120 'sent':113 'settl':64 'specif':72 'stripe':4,18,174,194 'stripe invoice api' 'stripe-invoices' 'structur':209 'substant':165 'suggest':189 'timeout':121 'type':125 'unclear':181 'uniform':132 'unit':96 'unknown':178 'usdc':14,28,70,98,107 'usdc payment api' 'usdc-settlement' 'use':69,108 'wall':41 'wallet':161 'x402':2,16,39,83 'x402 api' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"dddab6d8-bedc-40db-bbc0-68b9df73eebf","listingId":"a55b2c15-764d-4a3d-86fa-fe585383c3d6","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/2","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:55:52.866Z"}],"sources":[{"listingId":"a55b2c15-764d-4a3d-86fa-fe585383c3d6","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/invoices/2","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:55:52.866Z","lastSeenAt":"2026-04-25T10:03:27.502Z"}],"details":{"listingId":"a55b2c15-764d-4a3d-86fa-fe585383c3d6","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/2 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The x402 challenge requires maxAmountRequired of 20000 base units of USDC on Base with a 300-second timeout","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/2"},{"claim":"Documentation, pricing, API, and README pages all returned only a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving or creating Stripe invoice data via a pay-per-call model","Integrating invoice functionality into agent workflows without API keys","Programmatic access to Stripe invoice operations settled in USDC on Base"],"bestFor":["Agents needing keyless, pay-per-request access to invoice-related data","Developers who prefer crypto micropayments over traditional API subscriptions","Workflows requiring on-demand Stripe invoice interactions without rate limits"],"notFor":["Users who need detailed API documentation before integrating","High-volume use cases where per-request pricing may add up compared to flat-rate plans","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:51.304Z"},"updatedAt":"2026-04-25T10:03:27.502Z"}}