{"id":"8ace129f-8672-4714-8e9e-1c1704d5d4b6","shortId":"TeVz6u","kind":"x402","title":"Query DEX Screener blockchain data for decentralized exchange token info via a pay-per-call AI agent.","tagline":"Query DEX Screener blockchain data for decentralized exchange token info via a pay-per-call AI agent.","description":"This x402-enabled endpoint exposes a DEX Screener agent hosted on the Questflow platform. DEX Screener tracks decentralized exchange activity by parsing raw blockchain logs with a custom-built indexer. You send a natural-language query as a POST request with an `input` string field, and the agent returns a text response with the requested DEX data.\n\nThe endpoint operates on the x402 payment protocol (base-sepolia network) and accepts USDC payments. The maximum amount required per call is 100,000 units (in the token's smallest denomination) with a timeout of up to 1200 seconds. The agent is described as suitable for queries about cryptocurrencies on decentralized exchanges; for centralized exchange queries, the description recommends using a separate Oklink agent, and for ambiguous cases, querying both DEX Screener and CoinGecko agents.\n\nDocumentation is sparse — there is no OpenAPI spec, no dedicated docs page, and the only schema information comes from the x402 challenge's `outputSchema`. The Questflow platform (the provider) focuses on AI agent clones for onchain market scanning and trading, but this specific endpoint is a standalone agent query interface rather than a full trading bot.","tags":[],"capabilities":["dex-data-query","blockchain-log-parsing","decentralized-exchange-screening","natural-language-input","x402-payment","usdc-base-sepolia"],"categories":["crypto","blockchain","search"],"synonyms":["DEX Screener","decentralized exchange data","DEX token lookup","blockchain DEX analytics","onchain DEX query","crypto DEX API","Questflow DEX agent","DEX pair data"],"warnings":["No OpenAPI or dedicated API documentation available","Response format and content are inferred from the outputSchema description — no real response sample captured","Payment is on base-sepolia (testnet), which may indicate this is a development/staging endpoint","Example response is fabricated based on schema description — actual output may differ","Max timeout of 1200 seconds suggests potentially slow agent processing"],"endpointUrl":"https://api-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:6823065f5380bd59df4992e4","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x2fE7F27c90755C3A365051B65f60FA8C42FE3460","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:6823065f5380bd59df4992e4","description":"\n      DEX Screener is a platform that provides data directly from the blockchains it tracks, using a custom-built indexer to parse, analyze, and store raw blockchain logs.\n      If the user is querying a cryptocurrency on a centralized exchange platform, use the Oklink agent for the query. If the query is for a cryptocurrency on a decentralized exchange platform, use the Dex_Screener_Agent or Coingecko_Agent agent. If you're not sure which platform it's on, you can query both.\n     | Powered by Questflow","outputSchema":{"input":{"type":"http","method":"POST","bodyFields":{"input":{"type":"string","required":true,"description":"Your message to the agent"}},"discoverable":true},"output":{"response":{"type":"string","required":true,"description":"Response from the agent"}}},"maxAmountRequired":"100000","maxTimeoutSeconds":1200}]},"qualityScore":"0.450","qualityRationale":"The endpoint is live (402 challenge confirmed) with a clear input/output schema from the x402 challenge, but there is no OpenAPI spec, no dedicated documentation, and the response example is inferred. Pricing details are only partially available from the challenge 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'100':120 '1200':135 'DEX Screener' 'DEX pair data' 'DEX token lookup' 'Questflow DEX agent' 'accept':110 'activ':57 'agent':18,36,46,87,138,161,172,205,220 'ai':17,35,204 'ambigu':164 'amount':115 'base':106 'base-sepolia':105 'blockchain':4,22,61 'blockchain DEX analytics' 'blockchain-log-parsing' 'bot':228 'built':67 'call':16,34,118 'case':165 'central':151 'challeng':194 'clone':206 'coingecko':171 'come':190 'crypto DEX API' 'cryptocurr':146 'custom':66 'custom-built':65 'data':5,23,96 'decentr':7,25,55,148 'decentralized exchange data' 'decentralized-exchange-screening' 'dedic':182 'denomin':128 'describ':140 'descript':155 'dex':2,20,44,52,95,168 'dex-data-query' 'doc':183 'document':173 'enabl':40 'endpoint':41,98,216 'exchang':8,26,56,149,152 'expos':42 'field':84 'focus':202 'full':226 'host':47 'index':68 'info':10,28 'inform':189 'input':82 'interfac':222 'languag':74 'log':62 'market':209 'maximum':114 'natur':73 'natural-languag':72 'natural-language-input' 'network':108 'oklink':160 'onchain':208 'onchain DEX query' 'openapi':179 'oper':99 'outputschema':196 'page':184 'pars':59 'pay':14,32 'pay-per-cal':13,31 'payment':103,112 'per':15,33,117 'platform':51,199 'post':78 'protocol':104 'provid':201 'queri':1,19,75,144,153,166,221 'questflow':50,198 'rather':223 'raw':60 'recommend':156 'request':79,94 'requir':116 'respons':91 'return':88 'scan':210 'schema':188 'screener':3,21,45,53,169 'second':136 'send':70 'separ':159 'sepolia':107 'smallest':127 'spars':175 'spec':180 'specif':215 'standalon':219 'string':83 'suitabl':142 'text':90 'timeout':131 'token':9,27,125 'track':54 'trade':212,227 'unit':122 'usdc':111 'usdc-base-sepolia' 'use':157 'via':11,29 'x402':39,102,193 'x402-enabled':38 'x402-payment'","prices":[{"id":"0078ee1f-3b45-4a57-b236-a2770d812cfc","listingId":"8ace129f-8672-4714-8e9e-1c1704d5d4b6","amountUsd":null,"unit":"per_call","nativeCurrency":"USDC","nativeAmount":"100000","chain":"base-sepolia","payTo":"0x2fE7F27c90755C3A365051B65f60FA8C42FE3460","paymentMethod":"x402-usdc","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x2fE7F27c90755C3A365051B65f60FA8C42FE3460","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:6823065f5380bd59df4992e4","description":"\n      DEX Screener is a platform that provides data directly from the blockchains it tracks, using a custom-built indexer to parse, analyze, and store raw blockchain logs.\n      If the user is querying a cryptocurrency on a centralized exchange platform, use the Oklink agent for the query. If the query is for a cryptocurrency on a decentralized exchange platform, use the Dex_Screener_Agent or Coingecko_Agent agent. If you're not sure which platform it's on, you can query both.\n     | Powered by Questflow","outputSchema":{"input":{"type":"http","method":"POST","bodyFields":{"input":{"type":"string","required":true,"description":"Your message to the agent"}},"discoverable":true},"output":{"response":{"type":"string","required":true,"description":"Response from the agent"}}},"maxAmountRequired":"100000","maxTimeoutSeconds":1200}],"asset_contract":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","max_timeout_seconds":1200},"createdAt":"2026-04-18T18:31:13.619Z"}],"sources":[{"listingId":"8ace129f-8672-4714-8e9e-1c1704d5d4b6","source":"x402_bazaar","sourceId":"https://api-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:6823065f5380bd59df4992e4","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:31:13.619Z","lastSeenAt":"2026-04-22T02:30:11.163Z"}],"details":{"listingId":"8ace129f-8672-4714-8e9e-1c1704d5d4b6","quickStartSnippet":"curl -X POST https://api-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:6823065f5380bd59df4992e4 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\" \\\n  -d '{\"input\": \"What is the current price of PEPE on Uniswap?\"}'","exampleRequest":{"input":"What is the current price of PEPE on Uniswap?"},"exampleResponse":{"response":"PEPE/WETH on Uniswap V2 is currently trading at $0.00001234 with $5.2M in 24h volume."},"schema":{"input":{"type":"http","method":"POST","bodyFields":{"input":{"type":"string","required":true,"description":"Your message to the agent"}},"discoverable":true},"output":{"response":{"type":"string","required":true,"description":"Response from the agent"}}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"DEX Screener uses a custom-built indexer to parse, analyze, and store raw blockchain logs","source_url":"https://api-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:6823065f5380bd59df4992e4"},{"claim":"Payment is on base-sepolia network using USDC with maxAmountRequired of 100000","source_url":"https://api-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:6823065f5380bd59df4992e4"},{"claim":"The endpoint accepts POST with an input string field and returns a response string","source_url":"https://api-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:6823065f5380bd59df4992e4"},{"claim":"Questflow is the hosting platform for this agent endpoint","source_url":"https://api-dev.intra-tls2.dctx.link"}],"useCases":["Querying real-time token data from decentralized exchanges","Looking up trading pairs and liquidity on DEXes","Comparing DEX token activity across multiple blockchains","Agent-to-agent queries for DEX market intelligence","Screening new token launches on decentralized platforms"],"bestFor":["AI agents needing on-demand DEX market data via natural language","Developers building crypto dashboards that need DEX pair info","Automated workflows that require decentralized exchange screening"],"notFor":["Centralized exchange data queries (use Oklink or similar)","High-frequency trading requiring sub-second latency (1200s max timeout)","Users who need a free API without payment infrastructure"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:13.128Z"},"updatedAt":"2026-04-22T02:30:11.163Z"}}