{"id":"1dbce7db-7140-4460-86fa-e8239999fc96","shortId":"P8w6Wd","kind":"x402","title":"x402-gated Stripe subscription endpoint on Base, paying with USDC per call.","tagline":"x402-gated Stripe subscription endpoint on Base, paying with USDC per call.","description":"This endpoint at lowpaymentfee.com provides a \"Premium API Access\" resource gated behind the x402 payment protocol. It is 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 settled on the Base network using USDC.\n\nThe specific endpoint `/api/v1/stripe/subscriptions/60` accepts POST requests and requires an X-PAYMENT header carrying an x402 payment proof. The x402 challenge indicates a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). The payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a timeout of 300 seconds.\n\nHowever, the actual functionality behind this particular endpoint is unclear. The name \"Premium API Access\" and the path segment \"stripe/subscriptions/60\" suggest it may relate to managing or activating a Stripe subscription, but no documentation, request schema, or response schema is available. The docs, pricing, API, and README pages on the site all render only a \"Connect wallet\" prompt with no further content. Without documentation or example responses, it is impossible to confirm what data or action this endpoint returns upon successful payment.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","stripe-subscription"],"categories":["payments","infrastructure"],"synonyms":["x402 API","pay-per-call API","USDC micropayment","Base network API","lowpaymentfee","stripe subscription API","402 payment required"],"warnings":["No API documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'","No request or response schema provided; unclear what this endpoint returns on successful payment","The path 'stripe/subscriptions/60' suggests subscription management but no details confirm this","Functionality is entirely unverified beyond the x402 challenge"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/60","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/subscriptions/60","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, but there is no documentation, no request/response schema, and no explanation of what the endpoint actually does beyond its name. The docs pages are empty (\"Connect wallet\" only). This is effectively a stub 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'0.02':117 '000':106 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':130 '0x8335':111 '20':105 '2913':112 '300':135 '402 payment required' '6':122 'Base network API' 'USDC micropayment' 'accept':82 'access':35,151 'action':212 'activ':164 'actual':139 'address':129 'ai/ml':63 'analyt':62 'api':34,59,150,181 'avail':177 'base':8,21,74,107,114 'base-network' 'behind':38,141 'broader':48 'call':13,26 'carri':92 'challeng':99 'confirm':208 'connect':192 'content':198 'cost':103 'data':61,66,210 'decim':123 'doc':179 'document':170,200 'endpoint':6,19,28,80,144,214 'equal':116 'exampl':202 'finance/web3':65 'function':140 'gate':3,16,37 'header':91 'howev':137 'imposs':206 'indic':100 'infer':64 'lowpaymentfee' 'lowpaymentfee.com':30 'manag':162 'maximum':102 'may':159 'name':148 'network':75 'offer':51 'page':184 'part':45 'particular':143 'path':154 'pay':9,22,56 'pay-per-call API' 'pay-per-request':55 'payment':41,90,95,125,218 'per':12,25,57,118 'platform':49 'post':83 'premium':33,149 'price':180 'prompt':194 'proof':96 'protocol':42 'provid':31 'readm':183 'relat':160 'render':189 'request':58,84,119,171 'requir':86 'resourc':36 'respons':174,203 'return':215 'schema':172,175 'second':136 'segment':155 'sent':127 'servic':69 'settl':71 'site':187 'span':60 'specif':79 'stripe':4,17,166 'stripe subscription API' 'stripe-subscription' 'stripe/subscriptions/60':156 'subscript':5,18,167 'success':217 'suggest':157 'timeout':133 'unclear':146 'unit':108 'upon':216 'usdc':11,24,77,110,120 'usdc-settlement' 'use':76,121 'util':68 'varieti':53 'wallet':193 'without':199 'x':89 'x-payment':88 'x402':2,15,40,94,98 'x402 API' 'x402-gated':1,14 'x402-payment'","prices":[{"id":"a130d370-8056-440e-8ddb-b0b97117c13f","listingId":"1dbce7db-7140-4460-86fa-e8239999fc96","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/subscriptions/60","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:56:51.833Z"}],"sources":[{"listingId":"1dbce7db-7140-4460-86fa-e8239999fc96","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/60","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:56:51.833Z","lastSeenAt":"2026-04-22T10:02:16.851Z"}],"details":{"listingId":"1dbce7db-7140-4460-86fa-e8239999fc96","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/60\n# Returns 402 with x402 challenge. Supply X-PAYMENT header with valid payment proof to access.","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 maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/60"},{"claim":"The platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/60"},{"claim":"Docs, pricing, API, and README pages render only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Programmatically activating or managing a Stripe subscription via a crypto-settled x402 payment","Integrating pay-per-request API access into agent workflows without API keys","Paying for premium API access using USDC on Base"],"bestFor":["Developers wanting keyless, pay-per-call API access settled in USDC on Base","AI agents that can handle x402 payment challenges natively","Users who prefer crypto micropayments over traditional subscription billing"],"notFor":["Users who need detailed API documentation or response schemas before integrating","Anyone without a Base-compatible USDC wallet","Production use cases requiring guaranteed SLAs or support"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:48.483Z"},"updatedAt":"2026-04-22T10:02:16.851Z"}}