{"id":"10ca465a-8c47-4ce8-aa5f-46de0765d746","shortId":"ZE7ueZ","kind":"x402","title":"x402-gated premium API access on Base, pay $0.02 per request in USDC.","tagline":"x402-gated premium API access on Base, pay $0.02 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 share a uniform pricing model of $0.02 per request, settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/benefits/96` is listed as \"Premium API Access\" but no further documentation describes what data or functionality it returns. The x402 challenge confirms the endpoint is live, accepts POST requests, and requires payment of up to 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) to the address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`. The response MIME type is `application/json`.\n\nThe platform advertises no API keys, no rate limits, and instant access. However, documentation pages (`/docs`, `/pricing`, `/api`, `/README`) all render only a \"Connect wallet\" prompt with no substantive content, so the actual behavior and response schema of this endpoint remain undocumented. Without knowing what \"Premium API Access\" concretely returns, agents should treat this as an opaque paid endpoint until more information is available.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","json-response","post-method","per-request-billing"],"categories":["api","misc"],"synonyms":["premium api","paid api access","x402 api","lowpaymentfee","low payment fee","micropayment api","base usdc api"],"warnings":["No documentation available — /docs, /pricing, /api, and /README all render only a wallet-connect prompt with no content","The endpoint name 'Premium API Access' is generic and does not describe what data or service is returned","No request or response schema is provided; agents cannot predict what this endpoint does","The 'benefits/96' path suggests one of many numbered resources, but no catalog or description of these resources exists"],"endpointUrl":"https://lowpaymentfee.com/api/v1/benefits/96","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/benefits/96","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is no documentation, no OpenAPI schema, no example requests or responses, and the description 'Premium API Access' is entirely generic. The actual functionality of this specific endpoint is 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'/api/v1/benefits/96':95 '/docs':168 '/pricing':169 '/readme':171 '0.02':10,24,82,136 '000':131 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':146 '20':130 '6':141 'accept':121 'access':6,20,36,101,164,200 'actual':185 'address':145 'advertis':155 'agent':203 'ai':63 'analyt':62 'api':5,19,35,58,100,157,199 'application/json':152 'avail':216 'base':8,22,90,132 'base usdc api' 'base-network' 'behavior':186 'categori':59 'challeng':115 'concret':201 'confirm':116 'connect':176 'content':182 'data':61,108 'decim':142 'describ':106 'document':105,166 'endpoint':30,47,72,94,118,192,211 'financ':66 'function':110 'gate':3,17 'host':54 'howev':165 'includ':60 'inform':214 'infrastructur':69 'instant':163 'json-response' 'key':158 'know':196 'learn':65 'limit':161 'list':97 'live':120 'low payment fee' 'lowpaymentfee' 'lowpaymentfee.com':32,51 'machin':64 'mani':46 'micropayment api' 'mime':149 'model':80 'network':91 'offer':48 'one':44 'opaqu':209 'page':167 'paid':210 'paid api access' 'pay':9,23 'payment':40,126 'per':11,25,83 'per-request-billing' 'platform':52,75,154 'post':122 'post-method' 'premium':4,18,34,99,198 'premium api' 'price':79 'prompt':178 'protocol':41 'provid':33 'rate':160 'remain':193 'render':173 'request':12,26,84,123 'requir':125 'respons':148,188 'return':112,202 'schema':189 'settl':85 'share':76 'sinc':138 'specif':93 'substant':181 'treat':205 'type':150 'undocu':194 'uniform':78 'unit':133 'usd':137 'usdc':14,28,87,135,139 'usdc-settlement' 'use':140 'util':70 'varieti':56 'via':37 'wallet':177 'web3':67 'without':195 'x402':2,16,39,114 'x402 api' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"185c2e3b-a90a-4c31-9d2b-3300b79168ce","listingId":"10ca465a-8c47-4ce8-aa5f-46de0765d746","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/benefits/96","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T20:29:37.684Z"}],"sources":[{"listingId":"10ca465a-8c47-4ce8-aa5f-46de0765d746","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/benefits/96","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T20:29:37.684Z","lastSeenAt":"2026-04-22T01:01:59.290Z"}],"details":{"listingId":"10ca465a-8c47-4ce8-aa5f-46de0765d746","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/benefits/96 \\\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 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/benefits/96"},{"claim":"The platform advertises $0.02 per request, no API keys, no rate limits, instant access, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/benefits/96"},{"claim":"Documentation pages render only a Connect wallet prompt with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Accessing a premium API resource with per-call USDC micropayments on Base","Demonstrating x402 payment protocol integration for agent-to-API commerce","Testing low-cost pay-per-request API patterns without API keys or subscriptions"],"bestFor":["Developers exploring x402 payment-gated APIs","Agents that can settle USDC payments on Base L2","Users who want keyless, pay-per-use API access"],"notFor":["Users who need detailed documentation or response schemas before calling","Applications requiring free or subscription-based API access","Use cases needing non-USDC or non-Base payment rails"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:25.517Z"},"updatedAt":"2026-04-22T01:01:59.290Z"}}