{"id":"6f623db9-35aa-4874-a146-a1b00eefde9c","shortId":"CAr7k8","kind":"x402","title":"Query newly listed DEX trading pairs on Base chain via x402 micropayment","tagline":"Query newly listed DEX trading pairs on Base chain via x402 micropayment","description":"This x402-gated endpoint from Erudite Intelligence LLC returns data about new decentralized exchange (DEX) trading pairs on the Base blockchain. Callers send a POST request with a JSON body containing a token address (or pair identifier), and receive structured JSON data about new pairs associated with that token.\n\nThe endpoint accepts payment via two channels: USDC on Base (eip155:8453) or USDT on Tron (tron:728126428), both priced at $0.01 per call (10,000 base units with 6 decimals). Payment is facilitated through the x402 v2 protocol using the Coinbase CDP facilitator for Base and EruditePay's own bridge for Tron. The provider, Erudite Intelligence LLC, operates the EruditePay x402 Bridge — a FinCEN MSB-registered payment facilitator supporting 20 blockchains.\n\nDocumentation is sparse: the endpoint description is simply \"Crypto data intelligence\" and the example output is a generic `{\"success\": true, \"data\": {}}` stub. The exact fields returned in the `data` object are not documented, so consumers should expect to discover the response shape empirically. The endpoint is live and returning a valid x402 402 challenge.","tags":[],"capabilities":["dex-new-pairs","base-chain-data","token-pair-lookup","x402-payment","usdc-payment","usdt-tron-payment","crypto-data-intelligence"],"categories":["crypto","defi","data"],"synonyms":["new DEX pairs","decentralized exchange listings","Base chain token pairs","new liquidity pools","DEX pair discovery","crypto pair data","token listing tracker"],"warnings":["Response schema is undocumented — the example output contains only an empty data object","No OpenAPI or dedicated documentation available (docs endpoint returns 404)","Endpoint description is vague: 'Crypto data intelligence' with no further detail","Exact fields and semantics of returned pair data are unknown"],"endpointUrl":"https://bridge.eruditepay.com/v1/base/dex/new-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 pricing and schema, but documentation is minimal — the output example is a stub with an empty data object, there is no OpenAPI spec, and the /docs path returns 404. The actual response structure must be discovered 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'000':100 '10':99 '20':146 '402':200 '6':104 '728126428':92 '8453':86 'Base chain token pairs' 'DEX pair discovery' 'accept':77 'address':59 'associ':71 'base':8,20,45,84,101,120 'base-chain-data' 'blockchain':46,147 'bodi':55 'bridg':125,137 'call':98 'caller':47 'cdp':117 'chain':9,21 'challeng':201 'channel':81 'coinbas':116 'consum':182 'contain':56 'crypto':156 'crypto pair data' 'crypto-data-intelligence' 'data':35,67,157,168,176 'decentr':38 'decentralized exchange listings' 'decim':105 'descript':153 'dex':4,16,40 'dex-new-pairs' 'discov':186 'document':148,180 'eip155':85 'empir':190 'endpoint':29,76,152,192 'erudit':31,130 'eruditepay':122,135 'exact':171 'exampl':161 'exchang':39 'expect':184 'facilit':108,118,144 'field':172 'fincen':139 'gate':28 'generic':165 'identifi':62 'intellig':32,131,158 'json':54,66 'list':3,15 'live':194 'llc':33,132 'micropay':12,24 'msb':141 'msb-regist':140 'new':37,69 'new DEX pairs' 'new liquidity pools' 'newli':2,14 'object':177 'oper':133 'output':162 'pair':6,18,42,61,70 'payment':78,106,143 'per':97 'post':50 'price':94 'protocol':113 'provid':129 'queri':1,13 'receiv':64 'regist':142 'request':51 'respons':188 'return':34,173,196 'send':48 'shape':189 'simpli':155 'spars':150 'structur':65 'stub':169 'success':166 'support':145 'token':58,74 'token listing tracker' 'token-pair-lookup' 'trade':5,17,41 'tron':90,91,127 'true':167 'two':80 'unit':102 'usdc':82 'usdc-payment' 'usdt':88 'usdt-tron-payment' 'use':114 'v2':112 'valid':198 'via':10,22,79 'x402':11,23,27,111,136,199 'x402-gated':26 'x402-payment'","prices":[{"id":"ea520909-d2e3-4a38-8d0a-5919bf2b0a5e","listingId":"6f623db9-35aa-4874-a146-a1b00eefde9c","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":"2026-04-21T18:32:36.389Z"}],"sources":[{"listingId":"6f623db9-35aa-4874-a146-a1b00eefde9c","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/base/dex/new-pairs","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:36.389Z","lastSeenAt":"2026-04-22T07:02:22.155Z"}],"details":{"listingId":"6f623db9-35aa-4874-a146-a1b00eefde9c","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/base/dex/new-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 returns x402 v2 challenge with USDC on Base 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/new-pairs"},{"claim":"Provider is Erudite Intelligence LLC, FinCEN MSB registered (BSA ID 31000324258137)","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":"Coinbase CDP facilitator used for Base chain payments","source_url":"https://bridge.eruditepay.com/v1/base/dex/new-pairs"}],"useCases":["Discovering newly created trading pairs on Base DEX protocols for a given token","Monitoring new liquidity pool deployments to detect early trading opportunities","Building dashboards or alerts for new token listings on Base decentralized exchanges","Feeding DEX pair data into trading bots or portfolio trackers"],"bestFor":["Agents or bots that need real-time awareness of new DEX pairs on Base","Crypto analytics platforms tracking token launch activity","Developers building DeFi tooling on the Base L2 chain"],"notFor":["Querying DEX pairs on chains other than Base (endpoint is Base-specific)","Historical DEX pair data or full order-book depth","Users who cannot pay with USDC on Base or USDT on Tron"],"kindDetails":{},"updatedAt":"2026-04-22T01:49:39.023Z"}}