{"id":"d6d49b1a-8556-471a-99b0-04cbe499948d","shortId":"rERUkH","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 behind an x402 payment challenge. 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 via the x402 protocol.\n\nThe specific endpoint `/api/v1/stripe/subscriptions/160` appears to relate to Stripe subscription management. The x402 challenge indicates a maximum cost of 20,000 base units of USDC (0x8335… on Base), which equals $0.02 per request (USDC uses 6 decimals). The platform advertises uniform $0.02/request pricing across all its endpoints, with no API keys, no rate limits, and instant access. Payment is made via the x402 `exact` scheme, meaning the caller must attach a cryptographic payment proof in the `X-PAYMENT` header for each request.\n\nDocumentation is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what the endpoint actually returns or what parameters it accepts beyond the POST method. The endpoint is confirmed live (returns a valid 402 challenge), but the lack of documentation makes it difficult to determine the exact functionality or expected input/output format.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","stripe-subscriptions","pay-per-request","no-api-key"],"categories":["finance","infrastructure"],"synonyms":["stripe subscription API","x402 payment endpoint","USDC micropayment API","pay-per-call API","Base network API","crypto-paid API"],"warnings":["Documentation pages (docs, API, pricing, README) all render only 'Connect wallet' with no usable content.","No OpenAPI or schema available — request parameters and response format are unknown.","The purpose of '/api/v1/stripe/subscriptions/160' is unclear; it may be a demo or placeholder endpoint.","No request or response examples are available anywhere in the crawled material."],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/160","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/160","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 documentation is effectively nonexistent — all doc pages show only 'Connect wallet'. There is no OpenAPI schema, no request/response examples, and no explanation of what the endpoint does beyond the label 'Premium API Access'. The actual functionality of the Stripe subscriptions endpoint is 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'/request':125 '0.02':113,124 '000':103 '0x8335':108 '20':102 '402':223 '6':118 'Base network API' 'USDC micropayment API' 'accept':210 'access':37,140 'across':127 'actual':204 'advertis':122 'ai/ml':64 'analyt':63 'api':36,60,133,173 'appear':87 'attach':153 'base':8,22,75,104,110 'base-network' 'behind':39 'beyond':211 'broader':49 'call':12,26 'caller':151 'challeng':43,96,224 'confirm':218 'connect':182 'content':188 'cost':100 'crypto-paid API' 'cryptograph':155 'data':62,67 'decim':119 'descript':199 'determin':234 'difficult':232 'doc':172 'document':167,229 'endpoint':6,20,30,85,130,203,216 'equal':112 'exact':147,236 'exampl':196 'expect':239 'extrem':169 'finance/web3':66 'format':241 'function':237 'gate':3,17 'header':163 'indic':97 'infer':65 'input/output':240 'instant':139 'key':134 'lack':227 'limit':137 'live':219 'lowpaymentfee.com':32 'made':143 'make':230 'manag':93 'maximum':99 'mean':149 'method':214 'must':152 'network':76 'no-api-key' 'offer':52 'openapi':192 'page':177 'paid':9,23 'paramet':208 'part':46 'pay':57 'pay-per-call API' 'pay-per-request':56 'payment':42,141,156,162 'per':11,25,58,114 'per-cal':10,24 'platform':50,121 'post':213 'premium':35 'price':126,174 'prompt':184 'proof':157 'protocol':82 'provid':33 'rate':136 'readm':176 'relat':89 'render':179 'request':59,115,166 'request/response':195 'resourc':38 'return':205,220 'schema':193 'scheme':148 'servic':70 'settl':72 'span':61 'spars':170 'specif':84 'stripe':4,18,91 'stripe subscription API' 'stripe-subscriptions' 'subscript':5,19,92 'uniform':123 'unit':105 'usdc':14,28,78,107,116 'usdc-settlement' 'use':77,117 'util':69 'valid':222 'varieti':54 'via':79,144 'wallet':183 'x':161 'x-payment':160 'x402':2,16,41,81,95,146 'x402 payment endpoint' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"2cb21eba-ea70-41fb-9f99-8d562444f9ac","listingId":"d6d49b1a-8556-471a-99b0-04cbe499948d","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/160","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:56:25.279Z"}],"sources":[{"listingId":"d6d49b1a-8556-471a-99b0-04cbe499948d","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/160","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:56:25.279Z","lastSeenAt":"2026-04-25T04:03:27.342Z"}],"details":{"listingId":"d6d49b1a-8556-471a-99b0-04cbe499948d","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/160 \\\n  -H \"X-PAYMENT: <x402-payment-proof>\" \\\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 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/160"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/160"}],"useCases":["Programmatically managing or querying Stripe subscription data via a crypto-settled API call","Integrating pay-per-request subscription management into an agent workflow without traditional API keys","Accessing Stripe subscription information from a Web3-native application"],"bestFor":["Developers who want API-key-free, pay-per-call access to subscription data","Agent systems that can natively settle x402 payments on Base","Web3 applications needing Stripe integration without traditional auth"],"notFor":["Users who need detailed API documentation or OpenAPI specs before integrating","High-volume use cases where $0.02/request adds up significantly","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:49.743Z"},"updatedAt":"2026-04-25T04:03:27.342Z"}}