{"id":"30bd7475-36ee-4a04-ad29-915e9b370210","shortId":"6Lc45v","kind":"x402","title":"Pay-per-request premium API access on Base via x402 — no API keys, no rate limits.","tagline":"Pay-per-request premium API access on Base via x402 — no API keys, no rate limits.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol on the Base network. The specific resource path (`/api/v1/generate/resource/115`) does not have detailed documentation, but it sits within a broader platform that offers a variety of API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities — all priced at $0.02 per request and payable in USDC on Base.\n\nThe endpoint accepts POST requests and returns `application/json`. Payment is handled via the x402 protocol: callers must include an `X-PAYMENT` header with a valid payment proof. The max amount required is 20,000 units of USDC (0x8335…2913 on Base), which at 6 decimals equals $0.02. There are no API keys, no rate limits, and no signup required — access is granted purely through per-request micropayments.\n\nBecause the specific resource `/api/v1/generate/resource/115` is not documented beyond its title \"Premium API Access,\" the exact input schema and response format are unknown. The platform's landing page lists a `/api/v1/utils/generate` endpoint under Infrastructure, and this resource may be related, but this is speculative. The docs, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional technical content.","tags":[],"capabilities":["x402-payment","per-request-micropayment","base-network","usdc-payment","json-response","post-method","no-api-key","no-rate-limit"],"categories":["infrastructure","utility"],"synonyms":["premium API","pay-per-request API","x402 endpoint","micropayment API","USDC API access","lowpaymentfee","generate resource"],"warnings":["No documentation exists for the specific resource /api/v1/generate/resource/115 — its purpose and expected input/output are unknown.","All documentation pages (docs, pricing, README, api) render only a 'Connect wallet' prompt with no technical content.","The exact functionality behind 'Premium API Access' is unspecified; callers cannot know what this endpoint does without trial and error."],"endpointUrl":"https://lowpaymentfee.com/api/v1/generate/resource/115","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/115","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation for this specific resource path — no input schema, no response examples, and no description beyond the generic title \"Premium API Access.\" The docs/pricing/README pages are all empty (wallet-connect only). This is effectively a stub 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'/api/v1/utils/generate':198 '0.02':90,146 '000':133 '0x8335':137 '20':132 '2913':138 '6':143 'USDC API access' 'accept':101 'access':7,24,42,159,181 'addit':227 'ai':79 'amount':129 'analyt':78 'api':6,13,23,30,41,74,150,180 'application/json':106 'base':9,26,50,98,140 'base-network' 'beyond':176 'broader':67 'caller':114 'categori':75 'connect':222 'content':229 'data':77 'decim':144 'detail':60 'doc':213 'document':61,175 'endpoint':36,100,199 'equal':145 'exact':183 'financ':82 'format':188 'generate resource' 'grant':161 'handl':109 'header':121 'includ':76,116 'infrastructur':85,201 'input':184 'json-response' 'key':14,31,151 'land':194 'learn':81 'limit':17,34,154 'list':196 'lowpaymentfee' 'lowpaymentfee.com':38 'machin':80 'max':128 'may':205 'micropay':167 'micropayment API' 'must':115 'network':51 'no-api-key' 'no-rate-limit' 'offer':70 'page':195,217 'path':55 'pay':2,19 'pay-per-request':1,18 'pay-per-request API' 'payabl':94 'payment':46,107,120,125 'per':3,20,91,165 'per-request':164 'per-request-micropayment' 'platform':68,192 'post':102 'post-method' 'premium':5,22,40,179 'premium API' 'price':88,214 'prompt':224 'proof':126 'protocol':47,113 'provid':39 'pure':162 'rate':16,33,153 'readm':216 'relat':207 'render':219 'request':4,21,92,103,166 'requir':130,158 'resourc':54,171,204 'respons':187 'return':105 'schema':185 'signup':157 'sit':64 'specif':53,170 'specul':211 'technic':228 'titl':178 'unit':134 'unknown':190 'usdc':96,136 'usdc-payment' 'util':86 'valid':124 'varieti':72 'via':10,27,43,110 'wallet':223 'web3':83 'within':65 'x':119 'x-payment':118 'x402':11,28,45,112 'x402 endpoint' 'x402-payment'","prices":[{"id":"4719a4a3-26b2-4a8a-9c89-7bc04cacd1dd","listingId":"30bd7475-36ee-4a04-ad29-915e9b370210","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/115","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:32:01.498Z"}],"sources":[{"listingId":"30bd7475-36ee-4a04-ad29-915e9b370210","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/generate/resource/115","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:32:01.498Z","lastSeenAt":"2026-04-29T00:33:10.211Z"}],"details":{"listingId":"30bd7475-36ee-4a04-ad29-915e9b370210","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/115 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge requiring X-PAYMENT header with USDC on Base, maxAmountRequired 20000 (i.e., $0.02 at 6 decimals).","source_url":"https://lowpaymentfee.com/api/v1/generate/resource/115"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on the Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"The platform lists API categories including Data & Analytics, AI & ML, Finance & Web3, and Infrastructure utilities.","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.","source_url":"https://lowpaymentfee.com/api/v1/generate/resource/115"}],"useCases":["Accessing a generation/utility endpoint without needing API keys or subscriptions","Programmatic pay-per-call access from AI agents on the Base network","Integrating low-cost API calls into workflows that support x402 micropayments"],"bestFor":["Developers or agents wanting zero-signup, pay-as-you-go API access","x402-compatible agents that can pay in USDC on Base","Use cases requiring no rate limits and instant access"],"notFor":["Users who need detailed API documentation or guaranteed SLAs before integrating","Applications that cannot make on-chain USDC payments on Base","High-volume use cases where $0.02/request adds up significantly without bulk discounts"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:00.85Z"},"updatedAt":"2026-04-29T00:33:10.211Z"}}