{"id":"40b04faf-1ebc-405b-b182-c76a70127640","shortId":"8yLAyh","kind":"x402","title":"x402-gated premium API access on Base, paid per-call in USDC.","tagline":"x402-gated premium API access on Base, paid per-call in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" behind an x402 payment wall. It is part of a broader platform offering multiple API categories — data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all payable per-request in USDC on the Base network with no API keys, no rate limits, and no commitments.\n\nThe specific endpoint `/api/v1/stripe/subscriptions/47` is listed as \"Premium API Access\" and returns a valid x402 challenge requesting up to 20,000 base units of USDC (0x8335…2913 on Base). Since USDC uses 6 decimals, this translates to $0.02 per request, consistent with the platform's uniform $0.02/request pricing. Payment is made via the x402 \"exact\" scheme to the specified payTo address, with a 300-second timeout.\n\nThe platform's documentation, pricing, and API reference pages all appear to require a wallet connection and contain no additional rendered content in the crawl. There is no OpenAPI schema, no request/response examples, and no detailed documentation available for this specific endpoint. The endpoint name suggests it may relate to Stripe subscription management, but no further details about its functionality, accepted input parameters, or response format are available from the crawled material.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","per-request-pricing","no-api-key","premium-access"],"categories":["payments","api-gateway"],"synonyms":["premium API","subscription API","x402 endpoint","pay-per-call API","USDC API","Base network API","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available for this endpoint","All documentation/pricing/API pages require wallet connection and render no useful content","The endpoint path references 'stripe/subscriptions' but no details about its actual functionality are documented","No request body schema or response format is known"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/47","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/47","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and no documentation beyond the endpoint name. The actual functionality behind 'Premium API Access' is unclear, making this effectively a stub 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'/request':131 '0.02':121,130 '000':104 '0x8335':109 '20':103 '2913':110 '300':148 '6':116 'Base network API' 'USDC API' 'accept':211 'access':6,20,36,93 'addit':170 'address':145 'ai':55 'analyt':54 'api':5,19,35,51,76,92,157 'appear':161 'avail':188,218 'base':8,22,72,105,112 'base-network' 'behind':37 'broader':47 'call':12,26 'categori':52 'challeng':99 'commit':83 'connect':166 'consist':124 'contain':168 'content':172 'crawl':175,221 'data':53 'decim':117 'detail':186,207 'document':154,187 'endpoint':30,86,192,194 'exact':139 'exampl':183 'financ':58 'format':216 'function':210 'gate':3,17 'infrastructur':61 'input':212 'key':77 'learn':57 'limit':80 'list':89 'lowpaymentfee' 'lowpaymentfee.com':32 'machin':56 'made':135 'manag':203 'materi':222 'may':198 'multipl':50 'name':195 'network':73 'no-api-key' 'offer':49 'openapi':179 'page':159 'paid':9,23 'paramet':213 'part':44 'pay-per-call API' 'payabl':64 'payment':40,133 'payto':144 'per':11,25,66,122 'per-cal':10,24 'per-request':65 'per-request-pricing' 'platform':48,127,152 'premium':4,18,34,91 'premium API' 'premium-access' 'price':132,155 'provid':33 'rate':79 'refer':158 'relat':199 'render':171 'request':67,100,123 'request/response':182 'requir':163 'respons':215 'return':95 'schema':180 'scheme':140 'second':149 'sinc':113 'specif':85,191 'specifi':143 'stripe':201 'subscript':202 'subscription API' 'suggest':196 'timeout':150 'translat':119 'uniform':129 'unit':106 'usdc':14,28,69,108,114 'usdc-settlement' 'use':115 'util':62 'valid':97 'via':136 'wall':41 'wallet':165 'web3':59 'x402':2,16,39,98,138 'x402 endpoint' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"702edebf-c1c4-4c03-8942-ddedac19b3e5","listingId":"40b04faf-1ebc-405b-b182-c76a70127640","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/47","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:56:47.026Z"}],"sources":[{"listingId":"40b04faf-1ebc-405b-b182-c76a70127640","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/47","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:56:47.026Z","lastSeenAt":"2026-04-22T12:04:25.448Z"}],"details":{"listingId":"40b04faf-1ebc-405b-b182-c76a70127640","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/47 \\\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/47"},{"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":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/47"}],"useCases":["Accessing premium API features with per-call USDC micropayments","Agent-driven API consumption without pre-registration or API keys","Programmatic subscription or premium-tier access via x402 protocol"],"bestFor":["Developers wanting keyless, pay-per-use API access","AI agents that can settle x402 payments on Base","Users who prefer crypto micropayments over traditional subscriptions"],"notFor":["Users who need detailed API documentation before purchasing","Applications requiring fiat-only payment methods","High-volume use cases where per-call pricing may not be economical"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:48.714Z"},"updatedAt":"2026-04-22T12:04:25.448Z"}}