{"id":"1cad8db0-142b-40c3-85df-e22e1c7bc537","shortId":"ebTXjV","kind":"x402","title":"Retrieve top DEX trading pairs on Base chain via x402 micropayment","tagline":"Retrieve top DEX trading pairs on Base chain via x402 micropayment","description":"This endpoint returns top decentralized exchange (DEX) trading pairs on the Base blockchain. It is operated by Erudite Intelligence LLC under the description \"Crypto data intelligence\" and is accessed via HTTP POST with a JSON body containing a token address or pair identifier.\n\nThe endpoint uses the x402 payment protocol (v2) and accepts payment in USDC on Base (eip155:8453) or USDT on Tron (tron:728126428), each at 10,000 base units — equivalent to $0.01 per request. Payment is facilitated through the EruditePay Bridge, which supports settlement via the Coinbase CDP facilitator on Base. The endpoint is live and returns a proper 402 challenge.\n\nDocumentation is sparse: the Bazaar schema embedded in the 402 challenge provides the input/output structure, but no detailed field descriptions or full example responses are available. The output is JSON with a `success` boolean and a `data` object, but the exact shape of the data (pair addresses, volume, liquidity, etc.) is not documented. The provider's docs endpoint returns a 404, so users should rely on the schema in the x402 challenge for integration guidance.","tags":[],"capabilities":["dex-top-pairs","base-chain-data","x402-payment","usdc-settlement","usdt-tron-settlement","crypto-market-data","token-pair-lookup"],"categories":["crypto","market-data","defi"],"synonyms":["top trading pairs","DEX pairs Base","decentralized exchange pairs","Base chain DEX data","crypto pair rankings","liquidity pairs","Uniswap pairs Base","token pair data"],"warnings":["No detailed API documentation available — /docs returns 404","Output example in the 402 challenge contains only an empty data object; actual response fields are undocumented","The exact contents of the 'data' field (pair names, volumes, liquidity, etc.) must be discovered empirically"],"endpointUrl":"https://bridge.eruditepay.com/v1/base/dex/top-pairs","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","amount":"3000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}]},"qualityScore":"0.400","qualityRationale":"The endpoint is live and returns a valid x402 challenge with embedded schema, but documentation is effectively absent (docs endpoint returns 404). The output example is a stub with an empty data object, so the actual response shape is unknown. Pricing and payment details are clear from the 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'000':92 '10':91 '402':125,136 '404':187 '728126428':88 '8453':82 'Base chain DEX data' 'DEX pairs Base' 'Uniswap pairs Base' 'accept':75 'access':51 'address':62,173 'avail':152 'base':7,18,34,80,93,116 'base-chain-data' 'bazaar':131 'blockchain':35 'bodi':58 'boolean':160 'bridg':106 'cdp':113 'chain':8,19 'challeng':126,137,198 'coinbas':112 'contain':59 'crypto':46 'crypto pair rankings' 'crypto-market-data' 'data':47,163,171 'decentr':27 'decentralized exchange pairs' 'descript':45,146 'detail':144 'dex':3,14,29 'dex-top-pairs' 'doc':183 'document':127,179 'eip155':81 'embed':133 'endpoint':24,67,118,184 'equival':95 'erudit':40 'eruditepay':105 'etc':176 'exact':167 'exampl':149 'exchang':28 'facilit':102,114 'field':145 'full':148 'guidanc':201 'http':53 'identifi':65 'input/output':140 'integr':200 'intellig':41,48 'json':57,156 'liquid':175 'liquidity pairs' 'live':120 'llc':42 'micropay':11,22 'object':164 'oper':38 'output':154 'pair':5,16,31,64,172 'payment':71,76,100 'per':98 'post':54 'proper':124 'protocol':72 'provid':138,181 'reli':191 'request':99 'respons':150 'retriev':1,12 'return':25,122,185 'schema':132,194 'settlement':109 'shape':168 'spars':129 'structur':141 'success':159 'support':108 'token':61 'token pair data' 'token-pair-lookup' 'top':2,13,26 'top trading pairs' 'trade':4,15,30 'tron':86,87 'unit':94 'usdc':78 'usdc-settlement' 'usdt':84 'usdt-tron-settlement' 'use':68 'user':189 'v2':73 'via':9,20,52,110 'volum':174 'x402':10,21,70,197 'x402-payment'","prices":[{"id":"9e1a4853-5bc7-4347-b086-583cf28eff29","listingId":"1cad8db0-142b-40c3-85df-e22e1c7bc537","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":"3000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:36.373Z"}],"sources":[{"listingId":"1cad8db0-142b-40c3-85df-e22e1c7bc537","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/base/dex/top-pairs","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:36.373Z","lastSeenAt":"2026-04-22T05:32:28.450Z"}],"details":{"listingId":"1cad8db0-142b-40c3-85df-e22e1c7bc537","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/base/dex/top-pairs \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\" \\\n  -d '{\"token\": \"0x0000000000000000000000000000000000000000\"}'","exampleRequest":{"token":"0x0000000000000000000000000000000000000000"},"exampleResponse":{"data":{},"success":true},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint is operated by Erudite Intelligence LLC and described as 'Crypto data intelligence'","source_url":"https://bridge.eruditepay.com/v1/base/dex/top-pairs"},{"claim":"Accepts USDC on Base (eip155:8453) at 10000 base units ($0.01) and USDT on Tron at 10000 base units ($0.01)","source_url":"https://bridge.eruditepay.com/v1/base/dex/top-pairs"},{"claim":"EruditePay Bridge is a FinCEN MSB registered x402 facilitator supporting 20 blockchains","source_url":"https://bridge.eruditepay.com"},{"claim":"Settlement fee is 0.5% per successful settlement, verification is free","source_url":"https://bridge.eruditepay.com"}],"useCases":["Fetching the most active DEX trading pairs on Base for a trading dashboard","Identifying high-volume token pairs for automated trading strategies","Monitoring DEX liquidity and pair activity on Base chain","Building crypto analytics tools that need real-time pair rankings"],"bestFor":["Developers building DeFi analytics on Base chain","Trading bots needing top-pair data from Base DEXes","Crypto data aggregators requiring per-request micropayment access"],"notFor":["Historical DEX data or backtesting (no evidence of historical endpoints)","Multi-chain DEX aggregation in a single call (this endpoint is Base-specific)","Users who need detailed API documentation before integrating"],"kindDetails":{},"updatedAt":"2026-04-22T01:49:33.065Z"}}