{"id":"6bc7c548-758a-4a27-a5fd-ef89b9ba416f","shortId":"k7UAU4","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 a response from an autonomous Web3 trading agent. The endpoint is gated by an x402 payment challenge requiring USDC on the Base Sepolia testnet, with a maximum cost of 0.5 USDC per request (500000 in token units) and a timeout of up to 1200 seconds.\n\nQuestflow positions itself as a platform for creating AI \"Clones\" that aggregate onchain markets — including Polymarket, Pump.fun, OKX, and Opinion Labs — to discover trading opportunities, execute trades, and generate signals. The Web3 Trader agent appears to be one such clone exposed as a pay-per-call API. You send a natural-language message (e.g., asking about market conditions or requesting a trade analysis), and the agent responds with text.\n\nDocumentation is minimal: there is no OpenAPI spec, no dedicated docs page, and no detailed API reference beyond the x402 challenge's outputSchema. The endpoint is live and returns a valid 402 challenge on POST. Because this runs on Base Sepolia (a testnet), it is likely intended for development and experimentation rather than production trading with real funds.","tags":[],"capabilities":["x402-payment-gated","web3-trading-agent","natural-language-input","base-sepolia-usdc","autonomous-market-scanning","chat-style-api","questflow-swarm"],"categories":["crypto","llm","trading"],"synonyms":["Web3 trading bot","crypto AI agent","onchain trading assistant","Questflow agent","prediction market bot","DeFi trading agent","x402 crypto endpoint"],"warnings":["No OpenAPI spec or dedicated API documentation available","Payment is on Base Sepolia testnet — not suitable for production use","Response example is inferred from outputSchema, not from an actual API call","Max timeout of 1200 seconds suggests potentially long-running agent tasks","The endpoint description contained a marketing suffix ('Powered by Questflow') which was stripped"],"endpointUrl":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68ee29de1d6130e109861e30","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x64dd80232fE3500abbA31F217dd011CA1F63A7A0","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68ee29de1d6130e109861e30","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 with a valid x402 402 challenge and includes an outputSchema describing input/output fields. However, there is no OpenAPI spec, no dedicated documentation, no usage examples, and the response format is inferred from the schema alone. The testnet-only payment network limits practical 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'1200':94 '402':198 '500000':84 'DeFi trading agent' 'Questflow agent' 'Web3 trading bot' 'accept':43 'access':7,20 'agent':6,19,35,58,129,163 'aggreg':107 'ai':2,15,34,104 'ai-pow':1,14 'analysi':160 'api':143,182 'appear':130 'ask':152 'autonom':55 'autonomous-market-scanning' 'base':12,25,72,206 'base-sepolia-usdc' 'beyond':184 'call':142 'challeng':67,187,199 'chat-style-api' 'clone':105,135 'condit':155 'cost':78 'creat':103 'crypto AI agent' 'dedic':176 'detail':181 'develop':215 'discov':118 'doc':177 'document':167 'e.g':151 'enabl':33 'endpoint':36,60,191 'execut':121 'experiment':217 'expos':136 'fund':224 'gate':62 'generat':124 'host':37 'includ':110 'infrastructur':41 'intend':213 'lab':116 'languag':149 'like':212 'live':193 'market':109,154 'maximum':77 'messag':46,150 'micropay':10,23 'minim':169 'natur':148 'natural-languag':147 'natural-language-input' 'okx':113 'onchain':108 'onchain trading assistant' 'one':133 'openapi':173 'opinion':115 'opportun':120 'outputschema':189 'page':178 'pay':140 'pay-per-cal':139 'payment':66 'per':82,141 'platform':101 'polymarket':111 'posit':97 'post':48,201 'power':3,16 'prediction market bot' 'product':220 'pump.fun':112 'questflow':39,96 'questflow-swarm' 'rather':218 'real':223 'refer':183 'request':83,157 'requir':68 'respond':164 'respons':52 'return':50,195 'run':204 'second':95 'send':145 'sepolia':13,26,73,207 'signal':125 'spec':174 'testnet':74,209 'text':45,166 'timeout':90 'token':86 'trade':5,18,57,119,122,159,221 'trader':28,128 'unit':87 'usdc':69,81 'valid':197 'via':8,21,47 'web3':4,17,27,56,127 'web3-trading-agent' 'x402':9,22,32,65,186 'x402 crypto endpoint' 'x402-enabled':31 'x402-payment-gated'","prices":[{"id":"87e3fd9e-36e2-4b05-b541-44a7ec87d2d2","listingId":"6bc7c548-758a-4a27-a5fd-ef89b9ba416f","amountUsd":null,"unit":"per_call","nativeCurrency":"USDC","nativeAmount":"500000","chain":"base-sepolia","payTo":"0x64dd80232fE3500abbA31F217dd011CA1F63A7A0","paymentMethod":"x402-usdc","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x64dd80232fE3500abbA31F217dd011CA1F63A7A0","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68ee29de1d6130e109861e30","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":"2026-04-18T18:30:48.473Z"}],"sources":[{"listingId":"6bc7c548-758a-4a27-a5fd-ef89b9ba416f","source":"x402_bazaar","sourceId":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68ee29de1d6130e109861e30","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:30:48.473Z","lastSeenAt":"2026-04-22T02:30:10.109Z"}],"details":{"listingId":"6bc7c548-758a-4a27-a5fd-ef89b9ba416f","quickStartSnippet":"curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68ee29de1d6130e109861e30 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\n  -d '{\"input\": \"What are the top trending prediction markets right now?\"}'","exampleRequest":{"input":"What are the top trending prediction markets right now?"},"exampleResponse":{"response":"Currently trending on Polymarket: 'Will the Fed cut rates in July?' at 62% yes. On Pump.fun, $CLONE token is seeing high volume. Consider monitoring ETH/BTC ratio for macro signals."},"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":"x402 challenge requires USDC on base-sepolia with maxAmountRequired of 500000 and maxTimeoutSeconds of 1200","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68ee29de1d6130e109861e30"},{"claim":"Questflow aggregates Polymarket, Pump.fun, Opinion Labs, OKX and other onchain markets","source_url":"https://api-dev.intra-tls2.dctx.link"},{"claim":"The endpoint accepts POST with a JSON body containing an 'input' string field and returns a 'response' string field","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68ee29de1d6130e109861e30"},{"claim":"Payment address is 0x64dd80232fE3500abbA31F217dd011CA1F63A7A0 and asset is USDC at 0x036CbD53842c5426634e7929541eC2318f3dCF7e","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68ee29de1d6130e109861e30"}],"useCases":["Querying an AI agent for Web3 market analysis and trading signals","Integrating autonomous crypto trading insights into agent workflows via x402","Experimenting with pay-per-call AI trading agents on Base Sepolia testnet","Getting natural-language summaries of onchain market conditions"],"bestFor":["Developers experimenting with x402 payment-gated AI agents","Agent-to-agent workflows needing Web3 market intelligence","Prototyping pay-per-use crypto trading assistants on testnet"],"notFor":["Production trading with real funds (uses Base Sepolia testnet)","Users needing detailed API documentation or OpenAPI specs","High-frequency or low-latency trading (1200s max timeout)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:21.909Z"},"updatedAt":"2026-04-22T02:30:10.109Z"}}