{"id":"e92ad086-bab9-4654-8b2f-2d6debfaa72e","shortId":"sBdgfx","kind":"x402","title":"x402-gated premium API endpoint on Base, paying per-call with USDC.","tagline":"x402-gated premium API endpoint on Base, paying per-call with USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" behind an x402 paywall. The specific path `/api/v1/stripe/charges/101` suggests a Stripe charges-related resource, though the crawled documentation does not describe this particular endpoint in detail. The provider's site advertises a broad catalog of pay-per-request APIs spanning data & analytics, AI/ML inference, finance & Web3, and infrastructure utilities — all gated via x402 on the Base network.\n\nThe x402 challenge for this endpoint specifies payment in USDC (contract 0x8335…2913 on Base) with a maxAmountRequired of 20,000 base units. Since USDC uses 6 decimals, this translates to $0.02 per request, consistent with the site's advertised flat $0.02/request pricing across all endpoints. Payment is sent to address 0x1A2B…85F3 using the \"exact\" scheme. The endpoint accepts POST requests and returns application/json.\n\nThe provider emphasizes simplicity: no API keys, no rate limits, no commitments — just pay-per-call via x402. Documentation pages (/docs, /pricing, /api, /README) all returned only a \"Connect wallet\" prompt with no substantive content, so the actual request/response schema for this specific endpoint is unknown. Without input/output schema documentation, callers will need to experiment or contact the provider to understand what payload to send and what response to expect.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","stripe-charges","json-api","no-api-key","post-method"],"categories":["finance","infrastructure"],"synonyms":["stripe charges API","x402 premium API","pay-per-call API","USDC micropayment endpoint","Base network API","lowpaymentfee"],"warnings":["No request or response schema documented for this endpoint","All documentation pages (/docs, /pricing, /api, /README) returned only 'Connect wallet' with no useful content","The endpoint path '/api/v1/stripe/charges/101' is not listed among the provider's advertised APIs on the homepage","Purpose and expected payload of this specific endpoint are unknown"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/charges/101","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/101","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 confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation for this specific endpoint's input/output schema. All doc pages returned only 'Connect wallet' with no content. The purpose of '/api/v1/stripe/charges/101' is unclear beyond the generic 'Premium API Access' 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'/api/v1/stripe/charges/101':44 '/docs':183 '/pricing':184 '/readme':186 '/request':138 '0.02':127,137 '000':116 '0x1a2b':148 '0x8335':107 '20':115 '2913':108 '6':122 '85f3':149 'Base network API' 'USDC micropayment endpoint' 'accept':156 'access':36 'across':140 'actual':200 'address':147 'advertis':68,135 'ai/ml':81 'analyt':80 'api':5,19,35,77,167 'application/json':161 'base':8,22,94,110,117 'behind':37 'broad':70 'call':12,26,178 'caller':213 'catalog':71 'challeng':98 'charg':49 'charges-rel':48 'commit':173 'connect':191 'consist':130 'contact':219 'content':197 'contract':106 'crawl':54 'data':79 'decim':123 'describ':58 'detail':63 'document':55,181,212 'emphas':164 'endpoint':6,20,30,61,101,142,155,206 'exact':152 'expect':232 'experi':217 'financ':83 'flat':136 'gate':3,17,89 'infer':82 'infrastructur':86 'input/output':210 'json-api' 'key':168 'limit':171 'lowpaymentfee' 'lowpaymentfee.com':32 'maxamountrequir':113 'need':215 'network':95 'no-api-key' 'page':182 'particular':60 'path':43 'pay':9,23,74,176 'pay-per-cal':175 'pay-per-call API' 'pay-per-request':73 'payload':225 'payment':103,143 'paywal':40 'per':11,25,75,128,177 'per-cal':10,24 'post':157 'post-method' 'premium':4,18,34 'price':139 'prompt':193 'provid':33,65,163,221 'rate':170 'relat':50 'request':76,129,158 'request/response':201 'resourc':51 'respons':230 'return':160,188 'schema':202,211 'scheme':153 'send':227 'sent':145 'simplic':165 'sinc':119 'site':67,133 'span':78 'specif':42,205 'specifi':102 'stripe':47 'stripe charges API' 'stripe-charges' 'substant':196 'suggest':45 'though':52 'translat':125 'understand':223 'unit':118 'unknown':208 'usdc':14,28,105,120 'usdc-base' 'use':121,150 'util':87 'via':90,179 'wallet':192 'web3':84 'without':209 'x402':2,16,39,91,97,180 'x402 premium API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"5ee62092-a8b2-4210-b6de-1c3c4c5f9c1d","listingId":"e92ad086-bab9-4654-8b2f-2d6debfaa72e","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/101","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:53:53.217Z"}],"sources":[{"listingId":"e92ad086-bab9-4654-8b2f-2d6debfaa72e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/charges/101","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:53:53.217Z","lastSeenAt":"2026-04-25T23:32:32.680Z"}],"details":{"listingId":"e92ad086-bab9-4654-8b2f-2d6debfaa72e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/101 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"maxAmountRequired is 20000 base units of USDC on Base (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913), equating to $0.02","source_url":"https://lowpaymentfee.com/api/v1/stripe/charges/101"},{"claim":"Provider advertises $0.02/request flat pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The x402 challenge confirms the endpoint is live, accepts POST, and returns application/json","source_url":"https://lowpaymentfee.com/api/v1/stripe/charges/101"}],"useCases":["Programmatic access to Stripe charge data or operations via x402 micropayment","Agent-driven payment workflows that need per-call billing without API keys","Integrating pay-as-you-go API access into automated pipelines on Base"],"bestFor":["Developers wanting keyless, pay-per-request API access","AI agents that can settle x402 payments in USDC on Base","Projects needing low-friction API billing at $0.02/call"],"notFor":["Users who need detailed API documentation before integrating","High-volume use cases where per-request pricing may add up vs. subscription models","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:57.052Z"},"updatedAt":"2026-04-25T23:32:32.680Z"}}