{"id":"9d2a248f-37a9-4e23-a4bb-5482125918ff","shortId":"pdJA2w","kind":"x402","title":"Pay-per-call Web3 trading agent via x402 on Base Sepolia, powered by Questflow","tagline":"Pay-per-call Web3 trading agent via x402 on Base Sepolia, powered by Questflow","description":"Web3 Trader is an x402-payable AI agent endpoint hosted by Questflow that accepts a text prompt and returns a response related to Web3 trading. The endpoint uses the x402 payment protocol on the Base Sepolia testnet, accepting USDC payments (up to 0.5 USDC per call) before processing requests. You send a POST request with an `input` string (your message to the agent) and receive a `response` string back.\n\nThe agent is part of Questflow's broader \"AI Clone\" platform, which aggregates onchain markets such as Polymarket, Pump.fun, Opinion Labs, and OKX for alpha discovery and trade execution. However, the specific capabilities of this particular swarm agent endpoint are not well-documented beyond the x402 challenge metadata. There is no OpenAPI spec, no dedicated API documentation, and no detailed description of what trading-related queries the agent can handle or what data sources it draws from.\n\nThis endpoint is currently on a testnet (Base Sepolia), which suggests it is in a development or preview stage rather than production-ready. The payment asset is testnet USDC at contract `0x036CbD53842c5426634e7929541eC2318f3dCF7e`. The maximum timeout is 1200 seconds (20 minutes), indicating potentially long-running agent operations.","tags":[],"capabilities":["x402-payment","web3-trading-agent","text-in-text-out","base-sepolia-testnet","usdc-payment","autonomous-agent","onchain-market-aggregation"],"categories":["crypto","agent","trading"],"synonyms":["Web3 trading bot","crypto AI agent","onchain trading assistant","Questflow agent","x402 trading endpoint","prediction market agent","DeFi agent"],"warnings":["Endpoint is on Base Sepolia testnet — not suitable for production or real-money transactions","No API documentation or OpenAPI spec available; /docs, /api, /pricing, /README all return 404","Agent capabilities are unclear beyond the generic 'Web3 Trader' label","Response examples are entirely inferred from the outputSchema; no real response was observed","The maxAmountRequired of 500000 is in USDC smallest units (likely 0.5 USDC on 6-decimal USDC) but this is unconfirmed"],"endpointUrl":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0cada9c162996ee719105","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x1E5695C9ADF672671Af96C6c34b98a672Cf67A4b","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0cada9c162996ee719105","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":"0.250","qualityRationale":"The listing is based almost entirely on x402 challenge metadata and the Questflow marketing homepage. There is no OpenAPI spec, no API documentation, no usage examples, and no detailed description of the agent's actual capabilities. The endpoint is on a testnet. The response format is inferred from the outputSchema in the x402 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'0x036cbd53842c5426634e7929541ec2318f3dcf7e':212 '1200':217 '20':219 'DeFi agent' 'Questflow agent' 'Web3 trading bot' 'accept':45,69 'agent':7,22,39,94,102,138,170,226 'aggreg':113 'ai':38,109 'alpha':125 'api':157 'asset':206 'autonomous-agent' 'back':100 'base':11,26,66,187 'base-sepolia-testnet' 'beyond':145 'broader':108 'call':4,19,77 'capabl':133 'challeng':148 'clone':110 'contract':211 'crypto AI agent' 'current':183 'data':175 'dedic':156 'descript':162 'detail':161 'develop':195 'discoveri':126 'document':144,158 'draw':178 'endpoint':40,58,139,181 'execut':129 'handl':172 'host':41 'howev':130 'indic':221 'input':88 'lab':121 'long':224 'long-run':223 'market':115 'maximum':214 'messag':91 'metadata':149 'minut':220 'okx':123 'onchain':114 'onchain trading assistant' 'onchain-market-aggregation' 'openapi':153 'oper':227 'opinion':120 'part':104 'particular':136 'pay':2,17 'pay-per-cal':1,16 'payabl':37 'payment':62,71,205 'per':3,18,76 'platform':111 'polymarket':118 'post':84 'potenti':222 'power':13,28 'prediction market agent' 'preview':197 'process':79 'product':202 'production-readi':201 'prompt':48 'protocol':63 'pump.fun':119 'queri':168 'questflow':15,30,43,106 'rather':199 'readi':203 'receiv':96 'relat':53,167 'request':80,85 'respons':52,98 'return':50 'run':225 'second':218 'send':82 'sepolia':12,27,67,188 'sourc':176 'spec':154 'specif':132 'stage':198 'string':89,99 'suggest':190 'swarm':137 'testnet':68,186,208 'text':47 'text-in-text-out' 'timeout':215 'trade':6,21,56,128,166 'trader':32 'trading-rel':165 'usdc':70,75,209 'usdc-payment' 'use':59 'via':8,23 'web3':5,20,31,55 'web3-trading-agent' 'well':143 'well-docu':142 'x402':9,24,36,61,147 'x402 trading endpoint' 'x402-payable':35 'x402-payment'","prices":[{"id":"6e0990ce-a5e6-4f8f-9da3-b08d455fc5ec","listingId":"9d2a248f-37a9-4e23-a4bb-5482125918ff","amountUsd":null,"unit":"per_call","nativeCurrency":"USDC","nativeAmount":"500000","chain":"base-sepolia","payTo":"0x1E5695C9ADF672671Af96C6c34b98a672Cf67A4b","paymentMethod":"x402-usdc","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x1E5695C9ADF672671Af96C6c34b98a672Cf67A4b","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0cada9c162996ee719105","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":"2026-04-18T06:06:24.217Z"}],"sources":[{"listingId":"9d2a248f-37a9-4e23-a4bb-5482125918ff","source":"x402_bazaar","sourceId":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0cada9c162996ee719105","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T06:06:24.217Z","lastSeenAt":"2026-04-22T02:30:07.887Z"}],"details":{"listingId":"9d2a248f-37a9-4e23-a4bb-5482125918ff","quickStartSnippet":"curl -X POST \\\n  https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0cada9c162996ee719105 \\\n  -H 'Content-Type: application/json' \\\n  -H 'X-PAYMENT: <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":"Here are the top trending tokens on Pump.fun: ..."},"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 uses x402 version 1 on base-sepolia with USDC asset at 0x036CbD53842c5426634e7929541eC2318f3dCF7e","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0cada9c162996ee719105"},{"claim":"maxAmountRequired is 500000 with maxTimeoutSeconds of 1200","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0cada9c162996ee719105"},{"claim":"Questflow aggregates Polymarket, Pump.fun, Opinion Labs, OKX and other onchain markets","source_url":"https://api-dev.intra-tls2.dctx.link"},{"claim":"The input/output schema specifies a POST with a string 'input' field and a string 'response' field","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0cada9c162996ee719105"}],"useCases":["Querying an AI agent about Web3 trading opportunities or market conditions","Programmatic agent-to-agent interaction for crypto market intelligence","Testing x402 payment-gated AI agent workflows on Base Sepolia testnet"],"bestFor":["Developers experimenting with x402 payment protocol for AI agents","Testing pay-per-call crypto trading agent interactions on testnet","Exploring Questflow's swarm agent infrastructure"],"notFor":["Production trading with real funds (this is on Base Sepolia testnet)","Users needing detailed API documentation or guaranteed SLAs","Non-crypto or general-purpose AI assistant use cases"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:49.537Z"},"updatedAt":"2026-04-22T02:30:07.887Z"}}