{"id":"8460db47-33a4-4110-9492-3468c1d48be9","shortId":"4aPmFJ","kind":"x402","title":"AI-powered Web3 trading agent accessible via x402 micropayment on Base Sepolia","tagline":"AI-powered Web3 trading agent accessible via x402 micropayment on Base Sepolia","description":"Web3 Trader is an x402-enabled AI agent endpoint hosted on Questflow's infrastructure. It accepts a text message via POST and returns an AI-generated response related to Web3 trading. The endpoint is gated behind an x402 payment challenge requiring USDC on the Base Sepolia testnet, with a maximum cost of 0.5 USDC per request and a timeout of up to 1200 seconds.\n\nThe underlying platform, Questflow, aggregates multiple onchain markets including Polymarket, Pump.fun, Opinion Labs, and OKX. The agent is designed to scan markets, detect patterns and sentiment shifts, and provide trading-related intelligence. However, the specific capabilities of this particular \"Web3 Trader\" agent instance are not documented beyond the generic description. The endpoint schema is simple: send a JSON body with an `input` string field and receive a `response` string field.\n\nNote that this endpoint operates on Base Sepolia (a testnet), so it is likely intended for development or demonstration purposes rather than production use. No detailed API documentation, rate limits, or SLA information was found in the crawled material.","tags":[],"capabilities":["x402-payment-gated","web3-trading-agent","text-in-text-out","base-sepolia-usdc","ai-agent-chat","onchain-market-aggregation"],"categories":["crypto","llm","trading"],"synonyms":["Web3 trading bot","crypto AI agent","onchain trading assistant","Questflow agent","prediction market agent","DeFi trading AI","x402 trading endpoint"],"warnings":["Endpoint uses Base Sepolia testnet — not suitable for production or real-money transactions","No API documentation or OpenAPI spec available","Agent-specific capabilities are undocumented; the response schema is a generic string","The example response is inferred from the schema, not from an actual call"],"endpointUrl":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f5abac93d1a55ee56c9586","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x9a8abd48EdC0460e23dA97d20B77D6421152F30c","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f5abac93d1a55ee56c9586","description":"Web3 Trader | 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":"500000","maxTimeoutSeconds":1200}]},"qualityScore":"0.450","qualityRationale":"The endpoint is live and returns a valid x402 challenge with a clear outputSchema. However, there is no dedicated API documentation, no OpenAPI spec, no usage examples, and the endpoint runs on a testnet (Base Sepolia). The agent's specific capabilities beyond generic 'Web3 Trader' branding are 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'1200':91 'DeFi trading AI' 'Questflow agent' 'Web3 trading bot' 'accept':43 'access':7,20 'agent':6,19,35,109,135 'aggreg':97 'ai':2,15,34,53 'ai-agent-chat' 'ai-gener':52 'ai-pow':1,14 'api':190 'base':12,25,73,170 'base-sepolia-usdc' 'behind':64 'beyond':140 'bodi':152 'capabl':129 'challeng':68 'cost':79 'crawl':201 'crypto AI agent' 'demonstr':182 'descript':143 'design':111 'detail':189 'detect':115 'develop':180 'document':139,191 'enabl':33 'endpoint':36,61,145,167 'field':157,163 'found':198 'gate':63 'generat':54 'generic':142 'host':37 'howev':126 'includ':101 'inform':196 'infrastructur':41 'input':155 'instanc':136 'intellig':125 'intend':178 'json':151 'lab':105 'like':177 'limit':193 'market':100,114 'materi':202 'maximum':78 'messag':46 'micropay':10,23 'multipl':98 'note':164 'okx':107 'onchain':99 'onchain trading assistant' 'onchain-market-aggregation' 'oper':168 'opinion':104 'particular':132 'pattern':116 'payment':67 'per':83 'platform':95 'polymarket':102 'post':48 'power':3,16 'prediction market agent' 'product':186 'provid':121 'pump.fun':103 'purpos':183 'questflow':39,96 'rate':192 'rather':184 'receiv':159 'relat':56,124 'request':84 'requir':69 'respons':55,161 'return':50 'scan':113 'schema':146 'second':92 'send':149 'sentiment':118 'sepolia':13,26,74,171 'shift':119 'simpl':148 'sla':195 'specif':128 'string':156,162 'testnet':75,173 'text':45 'text-in-text-out' 'timeout':87 'trade':5,18,59,123 'trader':28,134 'trading-rel':122 'under':94 'usdc':70,82 'use':187 'via':8,21,47 'web3':4,17,27,58,133 'web3-trading-agent' 'x402':9,22,32,66 'x402 trading endpoint' 'x402-enabled':31 'x402-payment-gated'","prices":[{"id":"4c812810-8829-4f94-9bf8-9ac55122d9c3","listingId":"8460db47-33a4-4110-9492-3468c1d48be9","amountUsd":null,"unit":"per_call","nativeCurrency":"USDC","nativeAmount":"500000","chain":"base-sepolia","payTo":"0x9a8abd48EdC0460e23dA97d20B77D6421152F30c","paymentMethod":"x402-usdc","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x9a8abd48EdC0460e23dA97d20B77D6421152F30c","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f5abac93d1a55ee56c9586","description":"Web3 Trader | 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":"500000","maxTimeoutSeconds":1200}],"asset_contract":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","max_timeout_seconds":1200},"createdAt":"2026-04-18T18:30:30.190Z"}],"sources":[{"listingId":"8460db47-33a4-4110-9492-3468c1d48be9","source":"x402_bazaar","sourceId":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f5abac93d1a55ee56c9586","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:30:30.190Z","lastSeenAt":"2026-04-22T02:30:09.278Z"}],"details":{"listingId":"8460db47-33a4-4110-9492-3468c1d48be9","quickStartSnippet":"curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f5abac93d1a55ee56c9586 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <your-x402-payment-header>\" \\\n  -d '{\"input\": \"What are the top trending tokens on Pump.fun right now?\"}'","exampleRequest":{"input":"What are the top trending tokens on Pump.fun right now?"},"exampleResponse":{"response":"Based on current market data, the top trending tokens on Pump.fun include..."},"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":"The endpoint returns a 402 challenge requiring USDC on base-sepolia with maxAmountRequired of 500000","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f5abac93d1a55ee56c9586"},{"claim":"Questflow aggregates Polymarket, Pump.fun, Opinion Labs, OKX and other onchain markets","source_url":"https://api-dev.intra-tls2.dctx.link"},{"claim":"The payment asset is USDC at contract 0x036CbD53842c5426634e7929541eC2318f3dCF7e with maxTimeoutSeconds of 1200","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f5abac93d1a55ee56c9586"},{"claim":"The endpoint description from the x402 challenge is 'Web3 Trader | Powered by Questflow'","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f5abac93d1a55ee56c9586"}],"useCases":["Querying an AI agent for Web3 trading insights or market analysis","Integrating autonomous trading intelligence into agent-to-agent workflows","Prototyping x402 micropayment-gated AI agent interactions on testnet","Getting AI-generated responses about crypto markets, meme coins, or prediction markets"],"bestFor":["Developers experimenting with x402 payment protocol on Base Sepolia","Agent-to-agent communication requiring Web3 trading knowledge","Prototyping micropayment-gated AI trading assistants"],"notFor":["Production trading with real funds (this uses a testnet)","Users needing detailed, documented API contracts or SLAs","Non-crypto or general-purpose chat applications"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:34.335Z"},"updatedAt":"2026-04-22T02:30:09.278Z"}}