{"id":"34467f87-fc56-46cd-92d8-7af6f532c7ed","shortId":"WC9EMU","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 from a Web3-focused trading agent. The endpoint uses the x402 payment protocol on the Base Sepolia testnet, accepting USDC payments (up to 0.5 USDC per call) before processing the request. You send a POST 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, OKX, and Opinion Labs. The platform's marketing claims capabilities around alpha discovery, trade execution, sentiment analysis, and whale-move detection across multiple chains and prediction markets. However, the specific capabilities exposed through this single endpoint are unclear — the schema only defines a free-text input/output interface with no structured trading parameters.\n\nNo OpenAPI spec, detailed API documentation, or usage examples are available. The endpoint is on a development subdomain (`api-dev`) using a testnet (Base Sepolia), suggesting this is not a production-grade service. The timeout is set to 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","ai-agent-chat","onchain-market-analysis"],"categories":["crypto","llm","trading"],"synonyms":["Web3 trading bot","crypto AI agent","onchain trading assistant","Questflow agent","prediction market agent","DeFi trading agent","x402 crypto endpoint"],"warnings":["Endpoint is on a development subdomain (api-dev) and uses Base Sepolia testnet — not production","No API documentation available; /docs, /api, /pricing, /README all return 404","Output schema is minimal (string in, string out) with no structured trading parameters","maxTimeoutSeconds is 1200 (20 minutes), suggesting potentially very slow responses","The example response is entirely inferred — no actual response sample was available","Agent behavior and actual trading capabilities are unknown beyond marketing claims"],"endpointUrl":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0c8219c162996ee71886f","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x545e714A32394755c88a831a3C5f8e4130eed9bB","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0c8219c162996ee71886f","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":"No OpenAPI spec, no documentation pages (all return 404), no usage examples, and the endpoint is on a dev subdomain using a testnet. The only concrete information comes from the x402 challenge payload, which provides a minimal input/output schema. The response example is entirely 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'x402-payment'","prices":[{"id":"2702ae83-fe7a-46aa-acae-8d303e2d2224","listingId":"34467f87-fc56-46cd-92d8-7af6f532c7ed","amountUsd":null,"unit":"per_call","nativeCurrency":"USDC","nativeAmount":"500000","chain":"base-sepolia","payTo":"0x545e714A32394755c88a831a3C5f8e4130eed9bB","paymentMethod":"x402-usdc","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x545e714A32394755c88a831a3C5f8e4130eed9bB","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0c8219c162996ee71886f","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":"2026-04-18T18:30:44.224Z"}],"sources":[{"listingId":"34467f87-fc56-46cd-92d8-7af6f532c7ed","source":"x402_bazaar","sourceId":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0c8219c162996ee71886f","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:30:44.224Z","lastSeenAt":"2026-04-22T02:30:09.900Z"}],"details":{"listingId":"34467f87-fc56-46cd-92d8-7af6f532c7ed","quickStartSnippet":"curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0c8219c162996ee71886f \\\n  -H 'Content-Type: application/json' \\\n  -H 'X-PAYMENT: <x402-payment-header>' \\\n  -d '{\"input\": \"What are the top trending prediction markets on Polymarket right now?\"}'","exampleRequest":{"input":"What are the top trending prediction markets on Polymarket right now?"},"exampleResponse":{"response":"Here are the current top trending markets on Polymarket..."},"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 payment on Base Sepolia testnet with USDC, maxAmountRequired 500000, payTo 0x545e714A32394755c88a831a3C5f8e4130eed9bB","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0c8219c162996ee71886f"},{"claim":"Description from x402 challenge: 'Web3 Trader | Powered by Questflow'","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f0c8219c162996ee71886f"},{"claim":"Questflow platform aggregates Polymarket, Pump.fun, OKX, and Opinion Labs markets","source_url":"https://api-dev.intra-tls2.dctx.link"},{"claim":"Platform claims to scan thousands of markets 24/7 across every chain, detecting patterns, sentiment shifts, and whale moves","source_url":"https://api-dev.intra-tls2.dctx.link"}],"useCases":["Asking an AI agent for Web3 market analysis or trading insights","Querying onchain market conditions across aggregated platforms","Getting AI-generated signals on prediction markets or token launches","Programmatic agent-to-agent interaction for crypto trading workflows"],"bestFor":["Developers experimenting with x402 payment protocol on testnet","Agents needing a pay-per-call Web3 market analysis interface","Exploring Questflow's AI Clone agent capabilities programmatically"],"notFor":["Production trading with real funds (this uses Base Sepolia testnet)","Users needing structured trade execution APIs with defined parameters","Anyone requiring detailed API documentation or guaranteed SLAs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:27.149Z"},"updatedAt":"2026-04-22T02:30:09.900Z"}}