{"id":"d85a7ea7-435f-4790-9b98-0def7640fbb6","shortId":"q85n6X","kind":"x402","title":"x402-gated premium API access on Base, pay-per-request with USDC.","tagline":"x402-gated premium API access on Base, pay-per-request with USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" behind an x402 paywall on the Base network. The specific resource path (/api/v1/generate/resource/177) does not have detailed documentation explaining what it generates, but it sits within a broader platform offering data & analytics, AI/ML inference, finance/Web3 data, and infrastructure utility endpoints — all gated via x402 micropayments.\n\nThe endpoint accepts HTTP POST requests and returns application/json responses. Payment is settled on-chain using USDC (contract 0x8335…2913) on the Base L2 network, with a maximum cost of 20,000 units (likely 0.02 USDC given the 6-decimal USDC standard and the platform's advertised $0.02/request pricing). No API keys or rate limits are required; callers simply attach an X-PAYMENT header conforming to the x402 \"exact\" scheme.\n\nThe platform advertises a uniform $0.02 per request across all its endpoints, with no minimums or commitments. However, documentation beyond the landing page is essentially empty (all subpages just show \"Connect wallet\"), so the exact input parameters, response schema, and behavior of this specific resource are unknown. Treat this as a low-documentation endpoint where the actual functionality must be discovered by making a paid call.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","http-post","json-response","no-api-key","no-rate-limit"],"categories":["infrastructure","utility"],"synonyms":["premium api","x402 api","micropayment api","base network api","usdc api","pay-per-call api","lowpaymentfee"],"warnings":["No documentation available — all subpages (docs, api, pricing, README) return only 'Connect wallet'","The exact functionality of /api/v1/generate/resource/177 is undocumented and unknown","Input parameters and response schema are not specified anywhere","The platform lists many endpoint categories but none match this specific resource path pattern"],"endpointUrl":"https://lowpaymentfee.com/api/v1/generate/resource/177","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/177","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is essentially no documentation: all doc/pricing/API pages render only \"Connect wallet.\" The specific functionality of resource/177 is completely unknown, and no input/output schema is provided beyond the basic outputSchema stub. This is effectively a stub 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'/request':131 '0.02':117,130,160 '000':114 '0x8335':101 '20':113 '2913':102 '6':121 'accept':84 'access':6,20,36 'across':163 'actual':212 'advertis':129,157 'ai/ml':69 'analyt':68 'api':5,19,35,134 'application/json':90 'attach':143 'base':8,22,43,105 'base network api' 'behavior':195 'behind':37 'beyond':174 'broader':64 'call':221 'caller':141 'chain':97 'commit':171 'conform':149 'connect':185 'contract':100 'cost':111 'data':67,72 'decim':122 'detail':53 'discov':216 'document':54,173,208 'empti':180 'endpoint':30,76,83,166,209 'essenti':179 'exact':153,189 'explain':55 'finance/web3':71 'function':213 'gate':3,17,78 'generat':58 'given':119 'header':148 'howev':172 'http':85 'http-post' 'infer':70 'infrastructur':74 'input':190 'json-response' 'key':135 'l2':106 'land':176 'like':116 'limit':138 'low':207 'low-document':206 'lowpaymentfee' 'lowpaymentfee.com':32 'make':218 'maximum':110 'micropay':81 'micropayment api' 'minimum':169 'must':214 'network':44,107 'no-api-key' 'no-rate-limit' 'offer':66 'on-chain':95 'page':177 'paid':220 'paramet':191 'path':48 'pay':10,24 'pay-per-call api' 'pay-per-request':9,23 'payment':92,147 'paywal':40 'per':11,25,161 'platform':65,127,156 'post':86 'premium':4,18,34 'premium api' 'price':132 'provid':33 'rate':137 'request':12,26,87,162 'requir':140 'resourc':47,199 'respons':91,192 'return':89 'schema':193 'scheme':154 'settl':94 'show':184 'simpli':142 'sit':61 'specif':46,198 'standard':124 'subpag':182 'treat':202 'uniform':159 'unit':115 'unknown':201 'usdc':14,28,99,118,123 'usdc api' 'usdc-base' 'use':98 'util':75 'via':79 'wallet':186 'within':62 'x':146 'x-payment':145 'x402':2,16,39,80,152 'x402 api' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"fe267d18-a246-4622-b747-a64cd6624111","listingId":"d85a7ea7-435f-4790-9b98-0def7640fbb6","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/177","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:32:05.139Z"}],"sources":[{"listingId":"d85a7ea7-435f-4790-9b98-0def7640fbb6","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/generate/resource/177","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:32:05.139Z","lastSeenAt":"2026-04-29T00:33:10.303Z"}],"details":{"listingId":"d85a7ea7-435f-4790-9b98-0def7640fbb6","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/177 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -d '{}'","exampleRequest":{"url":"https://lowpaymentfee.com/api/v1/generate/resource/177","body":{},"method":"POST","headers":{"X-PAYMENT":"<x402-payment-token>","Content-Type":"application/json"}},"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns a 402 x402 challenge with USDC on Base network, maxAmountRequired 20000","source_url":"https://lowpaymentfee.com/api/v1/generate/resource/177"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, and no minimums","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/generate/resource/177"},{"claim":"All documentation subpages render only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Accessing a generation endpoint via x402 micropayment without needing API keys","Programmatic pay-per-request access from AI agents on the Base network","Testing x402 payment flows against a live endpoint"],"bestFor":["Developers experimenting with x402 payment protocols","AI agents that can settle USDC micropayments on Base","Use cases requiring keyless, pay-as-you-go API access"],"notFor":["Users who need detailed documentation or guaranteed SLAs before calling","High-volume batch processing where $0.02/request adds up quickly","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:00.691Z"},"updatedAt":"2026-04-29T00:33:10.303Z"}}