{"id":"55953123-0103-4acb-8731-79f68bc8936a","shortId":"xcA6CD","kind":"x402","title":"x402-gated Stripe subscription endpoint on Base, paid per-call in USDC.","tagline":"x402-gated Stripe subscription endpoint on Base, paid per-call in USDC.","description":"This endpoint at lowpaymentfee.com provides a \"Premium API Access\" resource at the path `/api/v1/stripe/subscriptions/100`. 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 utility services — all gated via the x402 payment protocol on the Base network, settling in USDC.\n\nThe specific endpoint probed here returns a 402 challenge requesting up to $0.02 USDC (20,000 base units with 6 decimals) per POST request, paid to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using USDC on Base (`0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`). The platform advertises no API keys, no rate limits, and instant access. The response MIME type is `application/json`.\n\nDocumentation is extremely sparse — the /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no examples of what the endpoint actually returns. The endpoint name suggests it relates to Stripe subscription management, but without documentation it is unclear what data or functionality is provided. Prospective callers should be aware that the actual behavior of this endpoint is undocumented.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","per-call-pricing","json-response","stripe-subscriptions"],"categories":["finance","infrastructure"],"synonyms":["x402 API","pay-per-call API","USDC micropayment","Base network API","Stripe subscription API","lowpaymentfee","crypto-gated endpoint"],"warnings":["No documentation available — /docs, /pricing, /api, and /README all return only a wallet-connect prompt with no content.","No OpenAPI spec or request/response schema provided.","Actual functionality of the /api/v1/stripe/subscriptions/100 endpoint is unknown — the name is suggestive but unverified.","The broader platform lists many endpoints but none have documented behavior."],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/100","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/100","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is zero documentation on what the endpoint actually does, no request/response schemas, and no examples. The docs pages are empty. The endpoint path suggests Stripe subscription functionality but this is 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'/api/v1/stripe/subscriptions/100':42 '/docs':140 '/pricing':141 '/readme':144 '0.02':96 '000':99 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':111 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':116 '20':98 '402':91 '6':103 'Base network API' 'Stripe subscription API' 'USDC micropayment' 'access':37,128 'actual':173,204 'address':110 'advertis':119 'ai/ml':63 'analyt':62 'api':36,58,121 'application/json':134 'awar':201 'base':8,22,79,100,115 'base-network' 'behavior':205 'broader':48 'call':12,26,57 'caller':198 'challeng':92 'connect':150 'content':156 'crypto-gated endpoint' 'data':61,66,192 'decim':104 'document':135,165,187 'dozen':52 'endpoint':6,20,30,59,86,172,176,208 'exampl':168 'extrem':137 'finance/web3':65 'function':194 'gate':3,17,71 'infer':64 'instant':127 'json-response' 'key':122 'limit':125 'lowpaymentfee' 'lowpaymentfee.com':32 'manag':184 'mime':131 'name':177 'network':80 'offer':51 'openapi':160 'page':145 'paid':9,23,108 'part':45 'path':41 'pay':55 'pay-per-cal':54 'pay-per-call API' 'payment':75 'per':11,25,56,105 'per-cal':10,24 'per-call-pricing' 'platform':49,118 'post':106 'premium':35 'probe':87 'prompt':152 'prospect':197 'protocol':76 'provid':33,196 'rate':124 'relat':180 'render':147 'request':93,107 'request/response':163 'resourc':38 'respons':130 'return':89,174 'schema':164 'servic':69 'settl':81 'span':60 'spars':138 'spec':161 'specif':85 'stripe':4,18,182 'stripe-subscriptions' 'subscript':5,19,183 'suggest':178 'type':132 'unclear':190 'undocu':210 'unit':101 'usdc':14,28,83,97,113 'usdc-settlement' 'use':112 'util':68 'via':72 'wallet':151 'without':186 'x402':2,16,74 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"243779c1-1020-49ef-bc2a-f23c1513eb30","listingId":"55953123-0103-4acb-8731-79f68bc8936a","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/100","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:56:18.021Z"}],"sources":[{"listingId":"55953123-0103-4acb-8731-79f68bc8936a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/100","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:56:18.021Z","lastSeenAt":"2026-04-25T04:03:27.131Z"}],"details":{"listingId":"55953123-0103-4acb-8731-79f68bc8936a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/100\n# Returns 402 with x402 payment challenge.\n# Attach X-PAYMENT header with a valid x402 payment proof to complete the request.","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge requesting up to 20000 base units of USDC on Base (≈$0.02).","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/100"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access.","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/100"},{"claim":"Documentation pages (/docs, /pricing, /api, /README) render only a 'Connect wallet' prompt.","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Programmatic access to Stripe subscription data or management via crypto micropayments","Agent-driven API calls that settle payment in USDC on Base without API keys","Integrating pay-per-use subscription endpoints into automated workflows"],"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":["Anyone needing documented request/response schemas before integrating","High-volume callers who would benefit from bulk pricing or rate-limited plans","Users without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:50.079Z"},"updatedAt":"2026-04-25T04:03:27.131Z"}}