{"id":"90db6803-3bca-4f30-8a88-14c330334064","shortId":"pe7aff","kind":"x402","title":"DeFi lending rates for Base-chain protocols via x402 micropayment, $0.01/call","tagline":"DeFi lending rates for Base-chain protocols via x402 micropayment, $0.01/call","description":"This x402-enabled endpoint returns DeFi lending rate data for protocols on the Base blockchain. Operated by Erudite Intelligence LLC, it accepts a POST request with a JSON body specifying a DeFi protocol name (e.g., \"aave\") and returns lending rate information. The endpoint is described as providing \"Crypto data intelligence.\"\n\nPayment is required per call via the x402 protocol (version 2). The endpoint accepts two payment options: USDC on Base (eip155:8453) at 10,000 base units ($0.01) or USDT on Tron (tron:728126428) at 10,000 base units ($0.01). Payment verification and settlement are facilitated through the EruditePay Bridge, which supports 20 blockchains and uses Coinbase CDP as one of its facilitators.\n\nDocumentation is sparse — the endpoint's schema is available only through the x402 challenge's bazaar extension, and the provider's docs page returns a 404. The output schema shows a generic `{\"success\": true, \"data\": {}}` example without detailing the structure of the lending rate data returned. Users should expect JSON output but will need to experiment to understand the full response shape.","tags":[],"capabilities":["defi-lending-rates","base-chain-data","x402-micropayment","usdc-payment","usdt-tron-payment","protocol-query","json-api"],"categories":["defi","crypto-data"],"synonyms":["DeFi lending rates","Aave rates","Base chain lending","crypto lending APY","DeFi interest rates","lending protocol data","on-chain lending rates"],"warnings":["Documentation site (docs.eruditepay.com referenced on landing page) was not reachable via crawled paths; /docs returns 404.","Output example in the bazaar schema is a stub ({\"data\": {}}) — actual response structure is unknown.","No OpenAPI specification available.","Only one example protocol (\"aave\") is shown; the full list of supported protocols is undocumented."],"endpointUrl":"https://bridge.eruditepay.com/v1/base/defi/lending-rates","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","amount":"5000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}]},"qualityScore":"0.450","qualityRationale":"The endpoint is live (402 challenge captured) with a clear payment scheme and basic input schema, but documentation is effectively absent — the docs URL returns 404, the output example is an empty stub, and there is no OpenAPI spec. The actual structure of lending rate data is 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'0.01':12,25,105,117 '000':102,114 '10':101,113 '2':88 '20':130 '404':166 '728126428':111 '8453':99 'Aave rates' 'Base chain lending' 'DeFi interest rates' 'DeFi lending rates' 'aav':63 'accept':49,91 'avail':149 'base':6,19,41,97,103,115 'base-chain':5,18 'base-chain-data' 'bazaar':156 'blockchain':42,131 'bodi':56 'bridg':127 'call':82 'cdp':135 'chain':7,20 'challeng':154 'coinbas':134 'crypto':75 'crypto lending APY' 'data':36,76,175,185 'defi':1,14,33,59 'defi-lending-rates' 'describ':72 'detail':178 'doc':162 'document':141 'e.g':62 'eip155':98 'enabl':30 'endpoint':31,70,90,145 'erudit':45 'eruditepay':126 'exampl':176 'expect':189 'experi':196 'extens':157 'facilit':123,140 'full':200 'generic':172 'inform':68 'intellig':46,77 'json':55,190 'json-api' 'lend':2,15,34,66,183 'lending protocol data' 'llc':47 'micropay':11,24 'name':61 'need':194 'on-chain lending rates' 'one':137 'oper':43 'option':94 'output':168,191 'page':163 'payment':78,93,118 'per':81 'post':51 'protocol':8,21,38,60,86 'protocol-query' 'provid':74,160 'rate':3,16,35,67,184 'request':52 'requir':80 'respons':201 'return':32,65,164,186 'schema':147,169 'settlement':121 'shape':202 'show':170 'spars':143 'specifi':57 'structur':180 'success':173 'support':129 'tron':109,110 'true':174 'two':92 'understand':198 'unit':104,116 'usdc':95 'usdc-payment' 'usdt':107 'usdt-tron-payment' 'use':133 'user':187 'verif':119 'version':87 'via':9,22,83 'without':177 'x402':10,23,29,85,153 'x402-enabled':28 'x402-micropayment'","prices":[{"id":"b5d75476-7028-44ba-9728-b3f02817a870","listingId":"90db6803-3bca-4f30-8a88-14c330334064","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","amount":"5000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:36.222Z"}],"sources":[{"listingId":"90db6803-3bca-4f30-8a88-14c330334064","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/base/defi/lending-rates","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:36.222Z","lastSeenAt":"2026-04-22T08:32:30.951Z"}],"details":{"listingId":"90db6803-3bca-4f30-8a88-14c330334064","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/base/defi/lending-rates \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\" \\\n  -d '{\"protocol\": \"aave\"}'","exampleRequest":{"protocol":"aave"},"exampleResponse":{"data":{},"success":true},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns 402 with x402 v2 challenge accepting USDC on Base and USDT on Tron at 10,000 base units each","source_url":"https://bridge.eruditepay.com/v1/base/defi/lending-rates"},{"claim":"Provider is Erudite Intelligence LLC, FinCEN MSB registered","source_url":"https://bridge.eruditepay.com"},{"claim":"EruditePay Bridge supports 20 blockchains and charges 0.5% per settlement","source_url":"https://bridge.eruditepay.com"},{"claim":"USDC on Base uses 6 decimals, so 10000 base units = $0.01","source_url":"https://bridge.eruditepay.com"}],"useCases":["Querying current lending/borrowing rates for DeFi protocols on Base","Building dashboards that display real-time DeFi lending APYs","Automated agents comparing lending rates across protocols","Portfolio management tools that factor in lending yields"],"bestFor":["AI agents needing on-demand DeFi lending rate lookups","Developers building crypto analytics tools on Base","Automated trading or yield-optimization bots"],"notFor":["Historical time-series lending rate analysis (no evidence of historical data support)","Non-Base-chain DeFi protocol queries (endpoint path specifies Base)","Users who need detailed documentation before integrating"],"kindDetails":{},"updatedAt":"2026-04-22T01:46:49.082Z"}}