{"id":"5d45fb0e-866e-4c68-be99-81bee94c3837","shortId":"8xV8UM","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. The specific resource `/api/v1/stripe/invoices/116` appears to be part of a broader platform that offers a variety of pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and utility services — all gated via the x402 protocol on the Base network.\n\nThe x402 challenge confirms the endpoint is live and accepts payment in USDC (contract 0x8335…2913 on Base) with a maximum amount of 20,000 base units, which translates to $0.02 per request (USDC uses 6 decimals). The platform advertises uniform $0.02/request pricing across all endpoints, with no API keys, no rate limits, and no minimum commitments required. Payment is made inline via the X-PAYMENT header per the x402 protocol.\n\nThe specific functionality of the `/api/v1/stripe/invoices/116` endpoint is not well-documented. The path suggests it relates to Stripe invoice data (possibly retrieving or interacting with a specific invoice record), but no request/response schema, parameter documentation, or example payloads are available. The broader site's docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no additional content. Without further documentation, the exact input parameters and response format remain unknown.","tags":[],"capabilities":["x402-payment","usdc-payment","base-network","pay-per-request","stripe-invoices","no-api-key"],"categories":["finance","infrastructure"],"synonyms":["stripe invoice API","x402 paid API","USDC micropayment API","pay-per-call endpoint","Base network API","lowpaymentfee"],"warnings":["No request or response schema available for this endpoint","All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no content","The specific purpose of /api/v1/stripe/invoices/116 is undocumented — the path suggests Stripe invoice data but this is inferred from the URL only","No OpenAPI spec or ai-plugin manifest found"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/invoices/116","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/116","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation for this specific endpoint's request/response schema, no examples, and the docs pages are empty. The exact functionality of /api/v1/stripe/invoices/116 is 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'/request':126 '0.02':114,125 '000':108 '0x8335':98 '20':107 '2913':99 '6':119 'Base network API' 'USDC micropayment API' 'accept':93 'access':36 'across':128 'addit':216 'advertis':123 'ai/ml':67 'amount':105 'analyt':66 'api':35,63,133,205 'appear':46 'avail':197 'base':8,22,82,101,109 'base-network' 'behind':37 'broader':52,199 'call':12,26 'challeng':86 'commit':141 'confirm':87 'connect':211 'content':217 'contract':97 'data':65,70,177 'decim':120 'doc':202 'document':168,192,220 'endpoint':6,20,30,89,130,163 'exact':222 'exampl':194 'finance/web3':69 'format':227 'function':159 'gate':3,17,75 'header':152 'infer':68 'inlin':146 'input':223 'interact':181 'invoic':5,19,176,185 'key':134 'limit':137 'live':91 'lowpaymentfee' 'lowpaymentfee.com':32 'made':145 'maximum':104 'minimum':140 'network':83 'no-api-key' 'offer':55 'page':206 'paramet':191,224 'part':49 'path':170 'pay':10,24,60 'pay-per-cal':9,23 'pay-per-call endpoint' 'pay-per-request':59 'payload':195 'payment':40,94,143,151 'per':11,25,61,115,153 'platform':53,122 'possibl':178 'premium':34 'price':127,203 'prompt':213 'protocol':79,156 'provid':33 'rate':136 'record':186 'relat':173 'remain':228 'render':208 'request':62,116 'request/response':189 'requir':142 'resourc':44 'respons':226 'retriev':179 'schema':190 'servic':73 'site':200 'span':64 'specif':43,158,184 'stripe':4,18,175 'stripe invoice API' 'stripe-invoices' 'suggest':171 'translat':112 'uniform':124 'unit':110 'unknown':229 'usdc':14,28,96,117 'usdc-payment' 'use':118 'util':72 'varieti':57 'via':76,147 'wall':41 'wallet':212 'well':167 'well-docu':166 'without':218 'x':150 'x-payment':149 'x402':2,16,39,78,85,155 'x402 paid API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"f2e1f6e9-595f-4aac-a789-c0274f97e6f0","listingId":"5d45fb0e-866e-4c68-be99-81bee94c3837","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/116","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:55:25.290Z"}],"sources":[{"listingId":"5d45fb0e-866e-4c68-be99-81bee94c3837","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/invoices/116","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:55:25.290Z","lastSeenAt":"2026-04-25T16:03:44.535Z"}],"details":{"listingId":"5d45fb0e-866e-4c68-be99-81bee94c3837","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/116 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a valid x402 challenge with USDC on Base, maxAmountRequired 20000 base units ($0.02)","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/116"},{"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":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/116"}],"useCases":["Retrieving or interacting with Stripe invoice data via a crypto-paid API call","Programmatic access to invoice records without traditional API key management","Agent-driven payment workflows where per-call USDC settlement is preferred"],"bestFor":["Developers or agents wanting keyless, pay-per-request access to invoice data","x402-compatible agents that can settle USDC on Base","Use cases requiring low-friction, no-commitment API access"],"notFor":["Users needing detailed API documentation or guaranteed SLAs before integrating","High-volume invoice processing where $0.02/call adds up significantly","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:52.535Z"},"updatedAt":"2026-04-25T16:03:44.535Z"}}