{"id":"177a38ec-52a2-4747-a203-161dcdd77783","shortId":"hZzyFP","kind":"x402","title":"Aave DeFi pool data via x402 micropayment — $0.02 per request on Base network","tagline":"Aave DeFi pool data via x402 micropayment — $0.02 per request on Base network","description":"This endpoint at lowpaymentfee.com provides access to Aave DeFi lending pool data through the x402 payment protocol. Each request costs $0.02 (20,000 base units of USDC on Base network, where USDC has 6 decimals). The endpoint accepts POST requests and returns JSON.\n\nThe provider operates a broad catalog of pay-per-call APIs spanning DeFi, analytics, AI/ML, finance, and utility services, all priced uniformly at $0.02 per request. The x402 protocol means no API keys or accounts are needed — callers attach a payment header (USDC on Base) and receive the response immediately. The provider advertises no rate limits and instant access.\n\nDocumentation is extremely sparse. The docs, pricing, API, 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 fields the Aave pools endpoint returns. The endpoint is confirmed live (returns a proper 402 challenge), but without documentation it is unclear what request body parameters are accepted or what the response payload looks like. Users should expect to experiment or contact the provider for details.","tags":[],"capabilities":["defi-data","aave-pools","x402-payment","usdc-base","pay-per-request","no-api-key","json-response"],"categories":["defi","finance"],"synonyms":["Aave lending pools","DeFi pool data","Aave API","crypto lending rates","DeFi analytics","Aave liquidity pools","Base USDC micropayment API"],"warnings":["No API documentation available — docs, pricing, and README pages all show only a wallet-connect prompt","No OpenAPI or JSON schema describing request parameters or response format","Response payload structure for Aave pools data is unknown and must be discovered experimentally","Provider catalog is very broad (DeFi, AI, analytics, utils) which may indicate a thin wrapper or placeholder service"],"endpointUrl":"https://lowpaymentfee.com/api/v1/defi/aave/pools","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/defi/aave/pools","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live with a valid x402 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages are empty stubs. The actual data returned by the Aave pools endpoint is entirely 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'000':49 '20':48 '402':179 '6':60 'Aave API' 'Aave lending pools' 'Aave liquidity pools' 'Base USDC micropayment API' 'DeFi analytics' 'DeFi pool data' 'aav':1,14,34,167 'aave-pools' 'accept':64,192 'access':32,129 'account':105 'advertis':123 'ai/ml':85 'analyt':84 'api':81,102,137 'attach':109 'base':12,25,50,55,115 'bodi':189 'broad':74 'call':80 'caller':108 'catalog':75 'challeng':180 'confirm':174 'connect':145 'contact':206 'content':151 'cost':46 'crypto lending rates' 'data':4,17,38 'decim':61 'defi':2,15,35,83 'defi-data' 'descript':162 'detail':210 'doc':135 'document':130,183 'endpoint':28,63,169,172 'exampl':159 'expect':202 'experi':204 'extrem':132 'field':165 'financ':86 'header':112 'immedi':120 'instant':128 'json':69 'json-response' 'key':103 'lend':36 'like':199 'limit':126 'live':175 'look':198 'lowpaymentfee.com':30 'mean':100 'micropay':7,20 'need':107 'network':13,26,56 'no-api-key' 'openapi':155 'oper':72 'page':140 'paramet':190 'pay':78 'pay-per-cal':77 'pay-per-request' 'payload':197 'payment':42,111 'per':9,22,79,95 'pool':3,16,37,168 'post':65 'price':91,136 'prompt':147 'proper':178 'protocol':43,99 'provid':31,71,122,208 'rate':125 'readm':139 'receiv':117 'render':142 'request':10,23,45,66,96,188 'request/response':158 'respons':119,196 'return':68,170,176 'schema':156 'servic':89 'span':82 'spars':133 'substant':150 'unclear':186 'uniform':92 'unit':51 'usdc':53,58,113 'usdc-base' 'user':200 'util':88 'via':5,18 'wallet':146 'without':182 'x402':6,19,41,98 'x402-payment'","prices":[{"id":"fb555626-edc0-43c5-b2d1-af0370ad959d","listingId":"177a38ec-52a2-4747-a203-161dcdd77783","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/defi/aave/pools","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-19T06:29:33.788Z"}],"sources":[{"listingId":"177a38ec-52a2-4747-a203-161dcdd77783","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/defi/aave/pools","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-19T06:29:33.788Z","lastSeenAt":"2026-04-22T19:32:37.702Z"}],"details":{"listingId":"177a38ec-52a2-4747-a203-161dcdd77783","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/defi/aave/pools \\\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":"Endpoint returns 402 with x402 challenge advertising USDC on Base at maxAmountRequired 20000","source_url":"https://lowpaymentfee.com/api/v1/defi/aave/pools"},{"claim":"Provider lists uniform $0.02/request pricing, no API keys, no rate limits, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/defi/aave/pools"}],"useCases":["Fetching current Aave lending pool parameters (APY, liquidity, reserves)","Building DeFi dashboards that aggregate lending protocol data","Automated trading or yield-farming bots that need real-time Aave pool info","Research and analytics on DeFi lending markets"],"bestFor":["Agents or bots that need on-demand Aave pool data without managing API keys","Developers prototyping DeFi applications who want instant pay-per-call access","Low-volume consumers who prefer micropayments over monthly subscriptions"],"notFor":["High-volume production use where $0.02/request adds up significantly","Users who need detailed API documentation and guaranteed SLAs before integrating","Anyone without a Base-network USDC wallet or x402-compatible client"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:23.954Z"},"updatedAt":"2026-04-22T19:32:37.702Z"}}