{"id":"2a0bbf42-162e-4ae3-8900-74a174bb2fe9","shortId":"bnyHRh","kind":"x402","title":"Query DEX trading pairs on Base chain via x402-paid crypto data intelligence endpoint.","tagline":"Query DEX trading pairs on Base chain via x402-paid crypto data intelligence endpoint.","description":"This endpoint at bridge.eruditepay.com provides DEX (decentralized exchange) pair data for tokens on the Base blockchain. It accepts a POST request with a JSON body containing a token address (or pair identifier) and returns pair information. The endpoint is gated behind the x402 payment protocol, requiring per-call payment of 0.01 USDC on Base (eip155:8453) or 0.01 USDT on Tron before data is served.\n\nThe endpoint is operated by Erudite Intelligence LLC, which also runs an x402 payment facilitator bridge supporting 20 blockchains. The facilitator is registered as a FinCEN MSB (BSA ID 31000324258137) and operates non-custodially. Payment is facilitated via Coinbase CDP for the Base network option.\n\nDocumentation for this specific data endpoint is sparse. The x402 challenge confirms the endpoint is live and describes itself as \"Crypto data intelligence.\" The Bazaar schema embedded in the challenge specifies the input as a JSON body with a `token` field (a token address or pair identifier), and the output as a JSON object with `success` and `data` fields. No detailed field-level documentation for the response data was found, and the example output shows an empty `data` object, so the exact structure of returned pair information is unknown.","tags":[],"capabilities":["dex-pair-lookup","base-chain-data","token-pair-query","x402-payment-gated","crypto-data-intelligence","multi-chain-payment"],"categories":["crypto","defi","data"],"synonyms":["DEX pairs","decentralized exchange pairs","Base chain DEX","token pair data","liquidity pool pairs","crypto pair lookup","on-chain trading pairs"],"warnings":["No detailed documentation available — /docs, /api, /pricing, /README all return endpoint_not_found errors.","The example output in the Bazaar schema shows an empty data object, so the actual response structure is unknown.","Price is inferred as $0.01 per call based on amount=10000 with USDC (6 decimals), but this is not explicitly documented.","The endpoint description is generic ('Crypto data intelligence') and does not detail what pair fields are returned."],"endpointUrl":"https://bridge.eruditepay.com/v1/base/dex/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":"0.450","qualityRationale":"The endpoint is confirmed live via a valid x402 402 challenge with embedded Bazaar schema, but documentation is very thin. The response data structure is unknown beyond a stub example with an empty object. No OpenAPI spec, no detailed docs pages (all return endpoint_not_found), and the endpoint's exact capabilities must be inferred from its URL path and sparse 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'20':114 '31000324258137':126 '8453':87 'Base chain DEX' 'DEX pairs' 'accept':48 'address':59,186 'also':106 'base':6,21,45,85,140 'base-chain-data' 'bazaar':167 'behind':71 'blockchain':46,115 'bodi':55,179 'bridg':112 'bridge.eruditepay.com':34 'bsa':124 'call':79 'cdp':137 'chain':7,22 'challeng':153,172 'coinbas':136 'confirm':154 'contain':56 'crypto':12,27,163 'crypto pair lookup' 'crypto-data-intelligence' 'custodi':131 'data':13,28,40,94,147,164,200,211,221 'decentr':37 'decentralized exchange pairs' 'describ':160 'detail':203 'dex':2,17,36 'dex-pair-lookup' 'document':143,207 'eip155':86 'embed':169 'empti':220 'endpoint':15,30,32,68,98,148,156 'erudit':102 'exact':225 'exampl':216 'exchang':38 'facilit':111,117,134 'field':183,201,205 'field-level':204 'fincen':122 'found':213 'gate':70 'id':125 'identifi':62,189 'inform':66,230 'input':175 'intellig':14,29,103,165 'json':54,178,195 'level':206 'liquidity pool pairs' 'live':158 'llc':104 'msb':123 'multi-chain-payment' 'network':141 'non':130 'non-custodi':129 'object':196,222 'on-chain trading pairs' 'oper':100,128 'option':142 'output':192,217 'paid':11,26 'pair':4,19,39,61,65,188,229 'payment':74,80,110,132 'per':78 'per-cal':77 'post':50 'protocol':75 'provid':35 'queri':1,16 'regist':119 'request':51 'requir':76 'respons':210 'return':64,228 'run':107 'schema':168 'serv':96 'show':218 'spars':150 'specif':146 'specifi':173 'structur':226 'success':198 'support':113 'token':42,58,182,185 'token pair data' 'token-pair-query' 'trade':3,18 'tron':92 'unknown':232 'usdc':83 'usdt':90 'via':8,23,135 'x402':10,25,73,109,152 'x402-paid':9,24 'x402-payment-gated'","prices":[{"id":"21876e89-d515-4172-bdcf-3077cc67fee4","listingId":"2a0bbf42-162e-4ae3-8900-74a174bb2fe9","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":"2026-04-21T18:32:36.604Z"}],"sources":[{"listingId":"2a0bbf42-162e-4ae3-8900-74a174bb2fe9","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/base/dex/pairs","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:36.604Z","lastSeenAt":"2026-04-22T05:32:28.718Z"}],"details":{"listingId":"2a0bbf42-162e-4ae3-8900-74a174bb2fe9","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/base/dex/pairs \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\" \\\n  -d '{\"token\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\"}'","exampleRequest":{"token":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"exampleResponse":{"data":{},"success":true},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns x402 v2 challenge with amount 10000 USDC on Base (eip155:8453) and 10000 USDT on Tron","source_url":"https://bridge.eruditepay.com/v1/base/dex/pairs"},{"claim":"Operated by Erudite Intelligence LLC, FinCEN MSB registered with BSA ID 31000324258137","source_url":"https://bridge.eruditepay.com"},{"claim":"Payment facilitated via Coinbase CDP for Base network","source_url":"https://bridge.eruditepay.com"},{"claim":"Bridge supports 20 blockchains and charges 0.5% per settlement","source_url":"https://bridge.eruditepay.com"},{"claim":"Input schema requires a token field described as 'Token address or pair identifier'","source_url":"https://bridge.eruditepay.com/v1/base/dex/pairs"}],"useCases":["Querying DEX trading pair information for a specific token on Base chain","Building automated trading or analytics agents that need real-time pair data","Integrating DEX pair discovery into portfolio tracking or DeFi dashboards","Programmatic lookup of liquidity pools associated with a given token address"],"bestFor":["Agents needing on-demand DEX pair data for Base chain tokens","Developers building DeFi analytics tools with per-call payment models","Automated systems that can pay with USDC on Base or USDT on Tron"],"notFor":["Users who need free or subscription-based bulk data access","Querying DEX pairs on chains other than Base (this endpoint is Base-specific)","Detailed historical trading or OHLCV data (no evidence this endpoint provides that)"],"kindDetails":{},"updatedAt":"2026-04-22T01:50:25.078Z"}}