{"id":"bd28e72f-cc1c-48a3-9094-213ff8178927","shortId":"xyhhZS","kind":"x402","title":"x402-gated Stripe subscription endpoint on Base, paying $0.02 in USDC per request.","tagline":"x402-gated Stripe subscription endpoint on Base, paying $0.02 in USDC per request.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol. It is part of a broader platform offering a variety of pay-per-request APIs spanning data & analytics, AI/ML inference, finance & Web3 data, and infrastructure utilities — all gated behind x402 challenges settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/stripe/subscriptions/123` appears to be a Stripe subscription-related resource. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335… on Base), which equals $0.02 per request. Payment is made via an `X-PAYMENT` header using the \"exact\" scheme. The endpoint accepts POST requests and returns `application/json`. No API keys or rate limits are advertised; access is granted purely through per-call micropayments.\n\nDocumentation is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI spec, no request/response schema, and no explanation of what this particular subscription endpoint returns or what POST body it expects. The platform's landing page confirms the $0.02/request pricing model and lists many sibling endpoints, but provides no detail on input parameters or response formats for any of them.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","stripe-subscriptions","json-api","no-api-key","micropayment"],"categories":["finance","infrastructure"],"synonyms":["stripe subscription API","x402 micropayment API","pay-per-call API","USDC gated endpoint","Base network API","lowpaymentfee","402 payment required API"],"warnings":["No OpenAPI or schema available — request body and response format are completely unknown","All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content","The endpoint path '/api/v1/stripe/subscriptions/123' with a hardcoded ID suggests this may be a demo or placeholder resource","No information on what data this endpoint actually returns"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/123","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/123","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 purpose of this specific endpoint (Stripe subscriptions/123) is unclear — it could be a demo or placeholder. Effectively a stub 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'/request':208 '0.02':10,24,113,207 '000':103 '0x8335':108 '20':102 '402 payment required API' 'Base network API' 'USDC gated endpoint' 'accept':131 'access':36,145 'advertis':97,144 'ai/ml':61 'analyt':60 'api':35,57,138,160 'appear':85 'application/json':136 'base':8,22,79,104,110 'behind':71 'bodi':197 'broader':47 'call':152 'challeng':73,96 'confirm':205 'connect':169 'content':175 'cost':100 'data':59,65 'detail':219 'doc':159 'document':154 'endpoint':6,20,30,83,130,192,215 'equal':112 'exact':127 'expect':199 'explan':186 'extrem':156 'financ':63 'format':225 'gate':3,17,70 'grant':147 'header':124 'infer':62 'infrastructur':67 'input':221 'json-api' 'key':139 'land':203 'limit':142 'list':212 'lowpaymentfee' 'lowpaymentfee.com':32 'made':118 'mani':213 'maximum':99 'micropay':153 'micropayment' 'model':210 'network':80 'no-api-key' 'offer':49 'openapi':179 'page':164,204 'paramet':222 'part':44 'particular':190 'pay':9,23,54 'pay-per-call API' 'pay-per-request':53 'payment':40,116,123 'per':13,27,55,114,151 'per-cal':150 'platform':48,201 'post':132,196 'premium':34 'price':161,209 'prompt':171 'protocol':41 'provid':33,217 'pure':148 'rate':141 'readm':163 'relat':92 'render':166 'request':14,28,56,115,133 'request/response':182 'resourc':93 'respons':224 'return':135,193 'schema':183 'scheme':128 'settl':74 'sibl':214 'span':58 'spars':157 'spec':180 'specif':82 'stripe':4,18,89 'stripe subscription API' 'stripe-subscriptions' 'subscript':5,19,91,191 'subscription-rel':90 'substant':174 'unit':105 'usdc':12,26,76,107 'usdc-base' 'use':125 'util':68 'varieti':51 'via':37,119 'wallet':170 'web3':64 'x':122 'x-payment':121 'x402':2,16,39,72,95 'x402 micropayment API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"2a8d4858-4201-4d1d-b457-75f2a4653c19","listingId":"bd28e72f-cc1c-48a3-9094-213ff8178927","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/123","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:56:30.668Z"}],"sources":[{"listingId":"bd28e72f-cc1c-48a3-9094-213ff8178927","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/123","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:56:30.668Z","lastSeenAt":"2026-04-25T04:32:54.241Z"}],"details":{"listingId":"bd28e72f-cc1c-48a3-9094-213ff8178927","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/123 \\\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 x402 challenge advertises maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/123"},{"claim":"Platform pricing is $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"}],"useCases":["Querying or managing Stripe subscription data via a single micropayment per call","Integrating pay-per-request subscription lookups into agent workflows without API key management","Programmatic access to subscription information settled on-chain in USDC"],"bestFor":["Agents or bots that need keyless, on-demand access to subscription data","Developers experimenting with x402 micropayment-gated APIs","Use cases where per-call billing is preferred over monthly subscriptions"],"notFor":["Production workloads requiring documented request/response schemas","Users who need detailed API documentation or SDKs before integrating","High-volume batch operations where per-call pricing is inefficient"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:49.498Z"},"updatedAt":"2026-04-25T04:32:54.241Z"}}