{"id":"0229c316-6ff2-4763-872e-48086f5a4c57","shortId":"hv7G5T","kind":"x402","title":"x402-gated premium API access on Base, paid per-request in USDC.","tagline":"x402-gated premium API access on Base, paid per-request in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol. It is one of many endpoints offered by the lowpaymentfee.com platform, which hosts a variety of API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints on the platform are pay-per-request with no API keys, no rate limits, and settlement on the Base network using USDC.\n\nThe specific endpoint `/api/v1/stripe/subscriptions/151` is labeled \"Premium API Access\" and requires a payment of up to 20,000 base units of USDC (0.02 USD) per request, consistent with the platform's uniform $0.02/request pricing. The x402 challenge confirms it accepts POST requests, settles on Base via the \"exact\" scheme, and pays to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`. The asset contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` is USDC on Base.\n\nDocumentation is extremely sparse — the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no further content. The endpoint's actual functionality beyond the label \"Premium API Access\" is unclear; the URL path suggests it may relate to Stripe subscription management, but no schema, request/response examples, or detailed documentation are available to confirm what data or service it returns.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key","post-method"],"categories":["api-gateway","payments"],"synonyms":["premium API","x402 API","pay-per-call API","USDC API","Base network API","lowpaymentfee","micropayment API"],"warnings":["No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'","Actual functionality of this specific endpoint is unknown; 'Premium API Access' is a generic label","No request or response schema provided","The URL path '/api/v1/stripe/subscriptions/151' suggests Stripe subscription management but this is unconfirmed"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/151","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/151","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, but there is no documentation, no request/response schema, and no explanation of what the endpoint actually does beyond the generic label 'Premium API Access'. The docs pages are empty. Functionality must be entirely guessed from the URL 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'/request':129 '0.02':118,128 '000':113 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':150 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':154 '20':112 'Base network API' 'USDC API' 'accept':136 'access':6,20,36,104,191 'actual':184 'address':149 'ai':63 'analyt':62 'api':5,19,35,58,83,103,166,190 'asset':152 'avail':214 'base':8,22,92,114,141,158 'base-network' 'beyond':186 'categori':59 'challeng':133 'confirm':134,216 'connect':174 'consist':122 'content':180 'contract':153 'data':61,218 'detail':211 'doc':164 'document':159,212 'endpoint':30,47,72,98,182 'exact':144 'exampl':209 'extrem':161 'financ':66 'function':185 'gate':3,17 'host':54 'includ':60 'infrastructur':69 'key':84 'label':101,188 'learn':65 'limit':87 'lowpaymentfee' 'lowpaymentfee.com':32,51 'machin':64 'manag':204 'mani':46 'may':199 'micropayment API' 'network':93 'no-api-key' 'offer':48 'one':44 'page':169 'paid':9,23 'path':196 'pay':78,147 'pay-per-call API' 'pay-per-request':77 'payment':40,108 'per':11,25,79,120 'per-request':10,24 'platform':52,75,125 'post':137 'post-method' 'premium':4,18,34,102,189 'premium API' 'price':130,165 'prompt':176 'protocol':41 'provid':33 'rate':86 'readm':168 'relat':200 'render':171 'request':12,26,80,121,138 'request/response':208 'requir':106 'return':222 'schema':207 'scheme':145 'servic':220 'settl':139 'settlement':89 'spars':162 'specif':97 'stripe':202 'subscript':203 'suggest':197 'unclear':193 'uniform':127 'unit':115 'url':195 'usd':119 'usdc':14,28,95,117,156 'usdc-settlement' 'use':94 'util':70 'varieti':56 'via':37,142 'wallet':175 'web3':67 'x402':2,16,39,132 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"cd6b0c8a-ab04-4530-a26a-6f0adc425e9c","listingId":"0229c316-6ff2-4763-872e-48086f5a4c57","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/151","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:56:27.108Z"}],"sources":[{"listingId":"0229c316-6ff2-4763-872e-48086f5a4c57","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/151","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:56:27.108Z","lastSeenAt":"2026-04-22T16:31:56.008Z"}],"details":{"listingId":"0229c316-6ff2-4763-872e-48086f5a4c57","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/151 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","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/151"},{"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 contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/151"},{"claim":"Docs, pricing, API, and README pages render only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Accessing a premium API service with per-request USDC micropayments on Base","Agent-driven API consumption without pre-registration or API keys","Programmatic access to subscription-related data or services"],"bestFor":["Developers wanting keyless, pay-per-use API access","AI agents that can settle x402 payments in USDC on Base","Users who prefer crypto micropayments over traditional subscription billing"],"notFor":["Users needing detailed API documentation or schemas before integrating","Applications requiring free or fiat-only payment methods","High-volume use cases where per-request pricing may not be cost-effective compared to bulk plans"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:49.614Z"},"updatedAt":"2026-04-22T16:31:56.008Z"}}