{"id":"fd10471c-cf93-47bf-9741-5b2a5b8cebab","shortId":"G269Nj","kind":"x402","title":"x402-gated Stripe customer endpoint on Base, paying $0.02 per request in USDC.","tagline":"x402-gated Stripe customer endpoint on Base, paying $0.02 per request in USDC.","description":"This endpoint at lowpaymentfee.com exposes a Stripe customer resource (`/api/v1/stripe/customers/51`) behind an x402 paywall. It is part of a broader platform that offers dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all priced at $0.02 per request, settled in USDC on the Base network.\n\nThe specific endpoint probed returns an x402 challenge requesting up to 20,000 base units of USDC (0x8335…2913 on Base, 6 decimals → $0.02) via the \"exact\" payment scheme. Payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3. The endpoint accepts HTTP POST and is discoverable. No API keys or rate limits are advertised; access is granted purely through on-chain micropayment.\n\nDocumentation beyond the landing page is extremely thin — the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available. The exact data returned by this Stripe customers endpoint is unknown; the description simply says \"Premium API Access.\" Prospective callers should be aware that the actual functionality behind this endpoint is unverified and undocumented.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","stripe-customer-data","micropayment-api"],"categories":["finance","infrastructure"],"synonyms":["x402 API","pay-per-call API","USDC micropayment endpoint","Base network API","Stripe customer API","lowpaymentfee","crypto-paid API"],"warnings":["No API documentation available — /docs, /pricing, /api, and /README all show only 'Connect wallet'","No OpenAPI or JSON schema describing request parameters or response format","The purpose of retrieving '/stripe/customers/51' is unclear — it may be a demo or placeholder endpoint","Actual response data and functionality are unverified"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/customers/51","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/customers/51","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 with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The actual functionality behind 'Premium API Access' for a Stripe customer resource is entirely 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'/api/v1/stripe/customers/51':38 '/docs':152 '/pricing':154 '/readme':156 '0.02':10,24,73,106 '000':95 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':117 '0x8335':100 '20':94 '2913':101 '6':104 'Base network API' 'Stripe customer API' 'USDC micropayment endpoint' 'accept':120 'access':134,200 'actual':208 'addit':167 'address':116 'advertis':133 'ai/ml':63 'analyt':62 'api':58,127,199 'avail':182 'awar':205 'base':8,22,81,96,103 'behind':39,210 'beyond':144 'broader':48 'call':57 'caller':202 'chain':141 'challeng':90 'connect':162 'crypto-paid API' 'custom':5,19,36,190 'data':61,66,185 'decim':105 'descript':195 'detail':169 'discover':125 'document':143 'dozen':52 'endpoint':6,20,30,59,85,119,191,212 'exact':109,184 'exampl':180 'expos':33 'extrem':149 'finance/web3':65 'function':209 'gate':3,17 'grant':136 'http':121 'infer':64 'infrastructur':68 'key':128 'land':146 'limit':131 'lowpaymentfee' 'lowpaymentfee.com':32 'micropay':142 'micropayment-api' 'network':82 'offer':51 'on-chain':139 'openapi':173 'page':147,157 'part':45 'pay':9,23,55 'pay-per-cal':54 'pay-per-call API' 'pay-per-request' 'payload':181 'payment':110,112 'paywal':42 'per':11,25,56,74 'platform':49 'post':122 'premium':198 'price':71 'probe':86 'prompt':164 'prospect':201 'pure':137 'rate':130 'render':159 'request':12,26,75,91 'request/response':176 'resourc':37 'return':87,186 'say':197 'schema':177 'scheme':111 'sent':114 'settl':76 'simpli':196 'span':60 'spec':174 'specif':84 'stripe':4,18,35,189 'stripe-customer-data' 'technic':168 'thin':150 'undocu':216 'unit':97 'unknown':193 'unverifi':214 'usdc':14,28,78,99 'usdc-base' 'util':69 'via':107 'wallet':163 'x402':2,16,41,89 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"bb6cbb51-0a87-4d73-9441-89a5f29b66f1","listingId":"fd10471c-cf93-47bf-9741-5b2a5b8cebab","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/customers/51","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:55:08.961Z"}],"sources":[{"listingId":"fd10471c-cf93-47bf-9741-5b2a5b8cebab","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/customers/51","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:55:08.961Z","lastSeenAt":"2026-04-25T19:32:27.882Z"}],"details":{"listingId":"fd10471c-cf93-47bf-9741-5b2a5b8cebab","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/customers/51 \\\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 endpoint returns an x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/stripe/customers/51"},{"claim":"All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/stripe/customers/51"}],"useCases":["Retrieving Stripe customer data for customer ID 51 via a single micropayment","Programmatic agent access to premium API resources without API keys","Demonstrating x402 payment-gated API patterns on Base"],"bestFor":["Agents or scripts that can settle USDC payments on Base automatically","Developers exploring x402 protocol integrations","Use cases requiring keyless, pay-per-call API access"],"notFor":["Users who need detailed API documentation or guaranteed SLAs","High-volume batch operations where per-request fees add up quickly","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:53.315Z"},"updatedAt":"2026-04-25T19:32:27.882Z"}}