{"id":"473e9b80-e7e5-4a9e-a37b-66575f45418f","shortId":"NVA5jG","kind":"x402","title":"x402-gated Stripe charges endpoint on Base, pay $0.02 per request in USDC.","tagline":"x402-gated Stripe charges endpoint on Base, pay $0.02 per request in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" behind an x402 payment wall. The specific path `/api/v1/stripe/charges/30` appears to be part of a broader platform offering dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and utility services — all priced at $0.02 per request settled in USDC on the Base network.\n\nThe x402 challenge confirms the endpoint is live, accepting POST requests, and requires an exact payment of 20,000 base units of USDC (0x8335…2913 on Base, 6 decimals → $0.02) to the payee address 0x1A2B…85F3. The payment timeout is 300 seconds. No API keys or rate limits are advertised; access is granted purely through the x402 payment header.\n\nDocumentation is extremely sparse. The landing page lists available API categories and endpoints but the /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI spec, no request/response schema documentation, and no examples of what the `/api/v1/stripe/charges/30` endpoint actually returns. The endpoint name suggests it may relate to Stripe charge creation or retrieval (possibly charges of $30), but this is speculative. Without documentation or sample responses, the actual functionality of this specific endpoint remains unclear.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","stripe-charges","no-api-key","no-rate-limit"],"categories":["finance","infrastructure"],"synonyms":["stripe charges API","x402 payment API","USDC micropayment","pay-per-call API","Base network API","lowpaymentfee","crypto payment gateway"],"warnings":["No OpenAPI spec or request/response schema available","All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no content","The actual functionality of /api/v1/stripe/charges/30 is unclear — 'Premium API Access' is the only description","No examples of successful responses exist in the crawl material","Platform appears to list many endpoints but none have documented behavior"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/charges/30","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/charges/30","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is zero documentation on what this endpoint actually does, no request/response schemas, and no examples. The docs/pricing/README pages are all empty wallet-connect stubs. The endpoint's purpose (Stripe charges) is only inferred from the URL 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'/api/v1/stripe/charges/30':45,191 '/docs':159 '/pricing':160 '/readme':163 '0.02':10,24,75,114 '000':103 '0x1a2b':119 '0x8335':108 '20':102 '2913':109 '30':211 '300':125 '6':112 '85f3':120 'Base network API' 'USDC micropayment' 'accept':93 'access':36,135 'actual':193,222 'address':118 'advertis':134 'ai/ml':65 'analyt':64 'api':35,61,128,153 'appear':46 'avail':152 'base':8,22,83,104,111 'behind':37 'broader':52 'call':60 'categori':154 'challeng':87 'charg':5,19,204,209 'confirm':88 'connect':169 'content':175 'creation':205 'crypto payment gateway' 'data':63,68 'decim':113 'document':144,184,217 'dozen':55 'endpoint':6,20,30,90,156,192,196,227 'exact':99 'exampl':187 'extrem':146 'finance/web3':67 'function':223 'gate':3,17 'grant':137 'header':143 'infer':66 'key':129 'land':149 'limit':132 'list':151 'live':92 'lowpaymentfee' 'lowpaymentfee.com':32 'may':200 'name':197 'network':84 'no-api-key' 'no-rate-limit' 'offer':54 'openapi':179 'page':150,164 'part':49 'path':44 'pay':9,23,58 'pay-per-cal':57 'pay-per-call API' 'pay-per-request' 'paye':117 'payment':40,100,122,142 'per':11,25,59,76 'platform':53 'possibl':208 'post':94 'premium':34 'price':73 'prompt':171 'provid':33 'pure':138 'rate':131 'relat':201 'remain':228 'render':166 'request':12,26,77,95 'request/response':182 'requir':97 'respons':220 'retriev':207 'return':194 'sampl':219 'schema':183 'second':126 'servic':71 'settl':78 'span':62 'spars':147 'spec':180 'specif':43,226 'specul':215 'stripe':4,18,203 'stripe charges API' 'stripe-charges' 'substant':174 'suggest':198 'timeout':123 'unclear':229 'unit':105 'usdc':14,28,80,107 'usdc-base' 'util':70 'wall':41 'wallet':170 'without':216 'x402':2,16,39,86,141 'x402 payment API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"4c5fc6eb-6b0d-4c28-8ab5-3a75a7c8decd","listingId":"473e9b80-e7e5-4a9e-a37b-66575f45418f","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/charges/30","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:54:24.067Z"}],"sources":[{"listingId":"473e9b80-e7e5-4a9e-a37b-66575f45418f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/charges/30","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:54:24.067Z","lastSeenAt":"2026-04-25T22:32:33.288Z"}],"details":{"listingId":"473e9b80-e7e5-4a9e-a37b-66575f45418f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/30 \\\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 402 challenge requiring 20,000 base units of USDC on Base (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)","source_url":"https://lowpaymentfee.com/api/v1/stripe/charges/30"},{"claim":"All APIs 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":"The platform offers APIs across Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages (/docs, /pricing, /api, /README) contain only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Programmatic access to Stripe charge data or creation via crypto micropayment","Agent-driven API calls without traditional API key management","Pay-per-use access to financial infrastructure endpoints"],"bestFor":["Developers wanting keyless, pay-per-call API access settled in USDC on Base","AI agents that can handle x402 payment challenges autonomously","Users who prefer crypto micropayments over subscription billing"],"notFor":["Users needing detailed API documentation or guaranteed SLAs before integrating","High-volume use cases where per-request pricing may add up versus flat-rate plans","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:55.613Z"},"updatedAt":"2026-04-25T22:32:33.288Z"}}