{"id":"ba430939-b574-4ecf-aa52-1f57b1e081c3","shortId":"csycxx","kind":"x402","title":"Pay-per-request premium API access on Base network via x402 protocol using USDC.","tagline":"Pay-per-request premium API access on Base network via x402 protocol using USDC.","description":"This endpoint at lowpaymentfee.com provides a generic \"Premium API Access\" resource at `/api/v1/generate/resource/108`. The provider operates a platform offering a variety of pay-per-request API endpoints spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities, all gated behind the x402 payment protocol on the Base network using USDC.\n\nThe specific resource at `/resource/108` is listed under the title \"Premium API Access\" but lacks detailed documentation about what it actually returns. The x402 challenge confirms the endpoint is live, accepts POST requests, and requires payment of up to 20,000 units of USDC (0x8335... on Base). The provider's landing page advertises a flat $0.02 per request across all endpoints, no API keys, no rate limits, and instant access.\n\nDocumentation is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what this particular resource does or what input it expects. The endpoint appears functional based on the 402 challenge, but without documentation it is unclear what value it delivers.","tags":[],"capabilities":["x402-payment","usdc-payment","base-network","pay-per-request","post-endpoint"],"categories":["infrastructure"],"synonyms":["premium API","x402 API","USDC API","pay-per-call API","lowpaymentfee","micropayment API","Base network API"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet'","The specific purpose and functionality of /api/v1/generate/resource/108 is completely undocumented","No request or response schema available; impossible to determine what this endpoint actually does","No OpenAPI specification or examples provided by the provider","maxAmountRequired of 20000 USDC units — actual dollar cost unclear without knowing token decimals in context"],"endpointUrl":"https://lowpaymentfee.com/api/v1/generate/resource/108","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/generate/resource/108","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 essentially no documentation about what this resource does, what inputs it expects, or what outputs it returns. The docs pages are empty beyond a wallet connect prompt. The specific resource '/resource/108' has no description beyond the generic title 'Premium API Access'. This is effectively a stub 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'/resource/108':87 '0.02':138 '000':123 '0x8335':127 '20':122 '402':204 'Base network API' 'USDC API' 'accept':113 'access':7,22,40,95,152 'across':141 'actual':103 'advertis':135 'ai':62 'analyt':61 'api':6,21,39,57,94,145,159 'appear':199 'base':9,24,79,129,201 'base-network' 'behind':72 'challeng':107,205 'confirm':108 'connect':168 'content':174 'data':60 'deliv':215 'descript':185 'detail':98 'doc':158 'document':99,153,208 'endpoint':32,58,110,143,198 'exampl':182 'expect':196 'extrem':155 'financ':65 'flat':137 'function':200 'gate':71 'generic':37 'infrastructur':68 'input':194 'instant':151 'key':146 'lack':97 'land':133 'learn':64 'limit':149 'list':89 'live':112 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':63 'micropayment API' 'network':10,25,80 'offer':49 'openapi':178 'oper':46 'page':134,163 'particular':189 'pay':2,17,54 'pay-per-call API' 'pay-per-request':1,16,53 'payment':75,118 'per':3,18,55,139 'platform':48 'post':114 'post-endpoint' 'premium':5,20,38,93 'premium API' 'price':160 'prompt':170 'protocol':13,28,76 'provid':35,45,131 'rate':148 'readm':162 'render':165 'request':4,19,56,115,140 'request/response':181 'requir':117 'resourc':41,85,190 'return':104 'schema':179 'span':59 'spars':156 'specif':84 'substant':173 'titl':92 'unclear':211 'unit':124 'usdc':15,30,82,126 'usdc-payment' 'use':14,29,81 'util':69 'valu':213 'varieti':51 'via':11,26 'wallet':169 'web3':66 'without':207 'x402':12,27,74,106 'x402 API' 'x402-payment'","prices":[{"id":"41dc51df-aa4a-432b-950c-2490476f0c9d","listingId":"ba430939-b574-4ecf-aa52-1f57b1e081c3","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/generate/resource/108","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:32:00.880Z"}],"sources":[{"listingId":"ba430939-b574-4ecf-aa52-1f57b1e081c3","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/generate/resource/108","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:32:00.880Z","lastSeenAt":"2026-04-29T00:33:10.176Z"}],"details":{"listingId":"ba430939-b574-4ecf-aa52-1f57b1e081c3","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/108 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","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 x402Version 1, accepting USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/generate/resource/108"},{"claim":"The provider advertises $0.02 per request, no API keys, no rate limits, instant access","source_url":"https://lowpaymentfee.com"},{"claim":"The provider offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, API, pricing, and README pages render only a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Accessing a pay-per-request API endpoint without API key registration","Making micropayments for API calls using USDC on Base network","Agent-driven programmatic access to gated resources via x402"],"bestFor":["Developers wanting keyless, pay-per-use API access","Agents that can handle x402 payment challenges natively","Users who prefer crypto micropayments over subscription billing"],"notFor":["Anyone needing documented, well-specified API contracts","Use cases requiring predictable, well-defined response schemas","Users without USDC on Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:00.923Z"},"updatedAt":"2026-04-29T00:33:10.176Z"}}