{"id":"2df31532-57ac-4e50-8aa9-0185f8a8e27f","shortId":"LEafFZ","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\" 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 are pay-per-request with no API keys, no rate limits, and no commitments required.\n\nThe specific endpoint `/api/v1/stripe/subscriptions/90` is labeled \"Premium API Access\" and costs $0.02 per request (20,000 base units of USDC on the Base network, where USDC has 6 decimals). Payment is settled on-chain via the x402 exact scheme to a specified wallet address. The endpoint accepts POST requests and returns JSON.\n\nHowever, the actual functionality behind this particular endpoint is unclear. The path suggests it relates to Stripe subscriptions, but the provider's landing page does not list or describe this specific route among its documented APIs. The docs, pricing, and API pages all appear to require wallet connection and provide no additional detail. Without further documentation, the precise behavior and response format of this endpoint remain unknown.","tags":[],"capabilities":["x402-payment","usdc-base","per-request-billing","json-response","post-method"],"categories":["api-gateway","payments"],"synonyms":["premium API","x402 API","pay-per-call API","USDC API access","lowpaymentfee","stripe subscriptions API","Base network API"],"warnings":["No documentation available for this specific endpoint — its actual functionality is unknown","The endpoint path '/api/v1/stripe/subscriptions/90' is not listed among the provider's documented APIs on the landing page","All doc/pricing/API pages require wallet connection and provide no readable content","No OpenAPI spec or output schema beyond basic HTTP method info","The 'Premium API Access' label is generic and does not describe what the endpoint does"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/90","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/90","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 402 challenge, confirming it is operational. However, there is no documentation, no OpenAPI schema, no example requests or responses, and the specific functionality of this endpoint is unclear. The crawled docs/pricing/API pages are all blank beyond a wallet-connect 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'0.02':100 '000':104 '20':103 '6':116 'Base network API' 'USDC API access' 'accept':136 'access':6,20,36,97 'actual':144 'addit':193 'address':133 'ai':63 'among':174 'analyt':62 'api':5,19,35,58,80,96,177,182 'appear':185 'base':8,22,105,111 'behavior':200 'behind':146 'call':12,26 'categori':59 'chain':123 'commit':87 'connect':189 'cost':99 'data':61 'decim':117 'describ':170 'detail':194 'doc':179 'document':176,197 'endpoint':30,47,72,91,135,149,206 'exact':127 'financ':66 'format':203 'function':145 'gate':3,17 'host':54 'howev':142 'includ':60 'infrastructur':69 'json':141 'json-response' 'key':81 'label':94 'land':164 'learn':65 'limit':84 'list':168 'lowpaymentfee' 'lowpaymentfee.com':32,51 'machin':64 'mani':46 'network':112 'offer':48 'on-chain':121 'one':44 'page':165,183 'paid':9,23 'particular':148 'path':153 'pay':75 'pay-per-call API' 'pay-per-request':74 'payment':40,118 'per':11,25,76,101 'per-cal':10,24 'per-request-billing' 'platform':52 'post':137 'post-method' 'precis':199 'premium':4,18,34,95 'premium API' 'price':180 'protocol':41 'provid':33,162,191 'rate':83 'relat':156 'remain':207 'request':77,102,138 'requir':88,187 'respons':202 'return':140 'rout':173 'scheme':128 'settl':120 'specif':90,172 'specifi':131 'stripe':158 'stripe subscriptions API' 'subscript':159 'suggest':154 'unclear':151 'unit':106 'unknown':208 'usdc':14,28,108,114 'usdc-base' 'util':70 'varieti':56 'via':37,124 'wallet':132,188 'web3':67 'without':195 'x402':2,16,39,126 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"93c89ef7-6124-42d5-be80-425ecc53c81a","listingId":"2df31532-57ac-4e50-8aa9-0185f8a8e27f","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/90","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:57:00.876Z"}],"sources":[{"listingId":"2df31532-57ac-4e50-8aa9-0185f8a8e27f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/90","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:57:00.876Z","lastSeenAt":"2026-04-22T08:31:38.294Z"}],"details":{"listingId":"2df31532-57ac-4e50-8aa9-0185f8a8e27f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/90 \\\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 402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/90"},{"claim":"The platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on the Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/90"}],"useCases":["Accessing a premium API resource with per-call USDC micropayments on Base","Agent-driven API consumption without API keys or accounts","Programmatic access to subscription-related functionality via x402 payment"],"bestFor":["Developers wanting keyless, pay-per-use API access","AI agents that can settle x402 payments on Base","Users who prefer on-chain micropayments over traditional billing"],"notFor":["Users needing detailed API documentation or OpenAPI specs before integrating","Applications requiring free or high-volume batch access","Users without USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:48.039Z"},"updatedAt":"2026-04-22T08:31:38.294Z"}}