{"id":"41ea9327-08b6-47d2-8be4-dee59ae15345","shortId":"9e7aWV","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 pay-per-request APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints on the platform use the x402 protocol on the Base network, settling payments in USDC.\n\nThe specific endpoint `/api/v1/stripe/subscriptions/32` is labeled \"Premium API Access\" and requires a maximum payment of 20,000 base units of USDC (0.02 USD) per request. The x402 challenge confirms the endpoint is live, accepts POST requests, and settles to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base. The response MIME type is `application/json`.\n\nHowever, the actual functionality behind this specific endpoint is unclear. The path suggests something related to Stripe subscriptions, but no documentation, request schema, or response schema is available beyond the x402 challenge metadata. The platform's docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no substantive content. Without knowing what data or service this endpoint returns, agents should treat this as an opaque premium endpoint until further documentation is published.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","per-request-billing","json-response","post-method"],"categories":["api","payments"],"synonyms":["x402 API","pay-per-call API","USDC API access","lowpaymentfee","Base network API","crypto-paid API","premium subscription endpoint"],"warnings":["No request or response schema available — the actual functionality of this endpoint is unknown","All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content","The URL path references 'stripe/subscriptions' but the payment is x402/USDC — the relationship to Stripe is unclear","No examples, error codes, or rate limit information documented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/32","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/32","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is confirmed live via a valid 402 challenge, but there is no documentation, no request/response schema, and the actual functionality behind 'Premium API Access' at a Stripe subscriptions path is unexplained. Docs pages are empty beyond a wallet connect 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'0.02':112 '000':107 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':131 '20':106 'Base network API' 'USDC API access' 'accept':124 'access':6,20,36,99 'actual':142 'address':130 'agent':202 'ai':66 'analyt':65 'api':5,19,35,62,98,177 'application/json':139 'avail':167 'base':8,22,85,108,133 'base-network' 'behind':144 'beyond':168 'call':12,26 'challeng':118,171 'confirm':119 'connect':186 'content':192 'crypto-paid API' 'data':64,196 'doc':176 'document':160,213 'endpoint':30,47,75,93,121,147,200,210 'financ':69 'function':143 'gate':3,17 'host':54 'howev':140 'infrastructur':72 'json-response' 'know':194 'label':96 'learn':68 'live':123 'lowpaymentfee' 'lowpaymentfee.com':32,51 'machin':67 'mani':46 'maximum':103 'metadata':172 'mime':136 'network':86 'offer':48 'one':44 'opaqu':208 'page':181 'paid':9,23 'path':151 'pay':59 'pay-per-call API' 'pay-per-request':58 'payment':40,88,104 'per':11,25,60,114 'per-cal':10,24 'per-request-billing' 'platform':52,78,174 'post':125 'post-method' 'premium':4,18,34,97,209 'premium subscription endpoint' 'price':178 'prompt':188 'protocol':41,82 'provid':33 'publish':215 'readm':180 'relat':154 'render':183 'request':61,115,126,161 'requir':101 'respons':135,164 'return':201 'schema':162,165 'servic':198 'settl':87,128 'someth':153 'span':63 'specif':92,146 'stripe':156 'subscript':157 'substant':191 'suggest':152 'treat':204 'type':137 'unclear':149 'unit':109 'usd':113 'usdc':14,28,90,111 'usdc-settlement' 'use':79 'util':73 'varieti':56 'via':37 'wallet':187 'web3':70 'without':193 'x402':2,16,39,81,117,170 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"e232ee41-c46b-4584-bebe-52bfd661509c","listingId":"41ea9327-08b6-47d2-8be4-dee59ae15345","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/32","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:56:49.451Z"}],"sources":[{"listingId":"41ea9327-08b6-47d2-8be4-dee59ae15345","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/32","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:56:49.451Z","lastSeenAt":"2026-04-22T05:31:34.016Z"}],"details":{"listingId":"41ea9327-08b6-47d2-8be4-dee59ae15345","quickStartSnippet":"# The endpoint requires an x402 payment header. First, obtain the 402 challenge:\ncurl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/32\n# Returns 402 with x402 challenge. Construct and attach X-PAYMENT header\n# per x402 protocol spec, then re-send the POST with payment proof.","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/32"},{"claim":"The platform advertises $0.02 per 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/32"},{"claim":"Documentation pages render only a 'Connect wallet' prompt with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Programmatic access to a premium API resource paid per-call in USDC on Base","Agent-driven workflows that need x402-compatible endpoints","Demonstrating x402 payment protocol integration"],"bestFor":["Developers or agents already set up with x402 payment flows on Base","Use cases requiring no API keys or rate limits","Micro-payment API consumption at $0.02 per request"],"notFor":["Users who need detailed documentation or request/response schemas before integrating","Anyone without a Base-compatible USDC wallet","Production workloads requiring SLA guarantees or support"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:48.569Z"},"updatedAt":"2026-04-22T05:31:34.016Z"}}