{"id":"623a6aa8-057f-4abc-a7df-46d37fb0ea4e","shortId":"6VFC6U","kind":"x402","title":"Premium API access via x402 payment on Base network, paid per-request in USDC.","tagline":"Premium API access via x402 payment on Base network, 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 platform, which spans data & analytics, AI & machine learning, finance & Web3, and infrastructure utility services. All endpoints use a pay-per-request model settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/stripe/subscriptions/161` is labeled \"Premium API Access\" and costs $0.02 per request (20000 base units of USDC with 6 decimals). Payment is made via the x402 protocol's `exact` scheme — callers attach an X-PAYMENT header with a signed payment to the `payTo` address. No API keys, rate limits, or upfront commitments are required.\n\nThe platform's documentation pages are minimal (only showing a \"Connect wallet\" prompt), so the exact functionality behind this particular subscription endpoint is unclear. It may represent a bundled or premium tier of the platform's other listed APIs, but no detailed schema or response format is documented. The endpoint accepts HTTP POST requests and returns application/json.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key","http-post"],"categories":["api-gateway","payments"],"synonyms":["x402 API","pay-per-call API","USDC API access","Base network API","lowpaymentfee","crypto-paid API","micropayment API"],"warnings":["No documentation available — all doc pages show only 'Connect wallet' prompt","Exact functionality of this endpoint is unclear; 'Premium API Access' is not described anywhere","No request or response schema provided","The endpoint path includes 'stripe/subscriptions' which is unusual for an x402-settled endpoint — purpose is ambiguous"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/161","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/161","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02/request in USDC on Base), but there is no documentation of what the endpoint actually returns, no request/response schema, and the docs pages are empty. The purpose of this specific 'Premium API Access' subscription endpoint is 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'0.02':94 '20000':97 '6':103 'Base network API' 'USDC API access' 'accept':190 'access':3,18,38,91 'address':129 'ai':58 'analyt':57 'api':2,17,37,90,131,178 'application/json':196 'attach':116 'base':8,23,81,98 'base-network' 'behind':157 'bundl':168 'caller':115 'commit':137 'connect':150 'cost':93 'crypto-paid API' 'data':56 'decim':104 'detail':181 'document':143,187 'endpoint':32,49,68,85,161,189 'exact':113,155 'financ':61 'format':185 'function':156 'header':121 'http':191 'http-post' 'infrastructur':64 'key':132 'label':88 'learn':60 'limit':134 'list':177 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':59 'made':107 'mani':48 'may':165 'micropayment API' 'minim':146 'model':75 'network':9,24,82 'no-api-key' 'offer':50 'one':46 'page':144 'paid':10,25 'particular':159 'pay':72 'pay-per-call API' 'pay-per-request':71 'payment':6,21,42,105,120,125 'payto':128 'per':12,27,73,95 'per-request':11,26 'platform':53,141,174 'post':192 'premium':1,16,36,89,170 'prompt':152 'protocol':43,111 'provid':35 'rate':133 'repres':166 'request':13,28,74,96,193 'requir':139 'respons':184 'return':195 'schema':182 'scheme':114 'servic':66 'settl':76 'show':148 'sign':124 'span':55 'specif':84 'subscript':160 'tier':171 'unclear':163 'unit':99 'upfront':136 'usdc':15,30,78,101 'usdc-settlement' 'use':69 'util':65 'via':4,19,39,108 'wallet':151 'web3':62 'x':119 'x-payment':118 'x402':5,20,41,110 'x402 API' 'x402-payment'","prices":[{"id":"764597b2-8620-454a-9338-874528071522","listingId":"623a6aa8-057f-4abc-a7df-46d37fb0ea4e","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/161","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:56:23.498Z"}],"sources":[{"listingId":"623a6aa8-057f-4abc-a7df-46d37fb0ea4e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/161","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:56:23.498Z","lastSeenAt":"2026-04-22T18:32:18.146Z"}],"details":{"listingId":"623a6aa8-057f-4abc-a7df-46d37fb0ea4e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/161 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <signed-x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns 402 with x402 challenge accepting USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/161"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/161"}],"useCases":["Accessing premium API features without traditional subscription management","Programmatic pay-per-use access to bundled API services","Agent-driven API consumption with on-chain USDC payments"],"bestFor":["Developers wanting keyless, pay-as-you-go API access","AI agents that can settle payments via x402 protocol","Users who prefer crypto-native micropayments over traditional billing"],"notFor":["Users needing detailed API documentation before purchasing","Applications requiring guaranteed SLAs or support contracts","Users without USDC on Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:49.856Z"},"updatedAt":"2026-04-22T18:32:18.146Z"}}