Pay-per-message Web3 trading agent via x402 on Base Sepolia, powered by Questflow
What it does
Web3 Trader is an x402-payable AI agent endpoint hosted by Questflow. It accepts a text message input and returns a text response from a Web3 trading-focused agent. Payment is handled via the x402 protocol on the Base Sepolia testnet using USDC (contract 0x036CbD53842c5426634e7929541eC2318f3dCF7e), with a maximum charge of 0.5 USDC per request and a timeout of up to 1200 seconds.
The endpoint is a simple POST interface: you send a JSON body with an "input" string field containing your message to the agent, and receive a JSON response with a "response" string field. The underlying platform, Questflow, describes itself as an AI clone platform that aggregates onchain markets including Polymarket, Pump.fun, OKX, and Opinion Labs for alpha discovery and trade execution. However, the specific capabilities of this particular agent endpoint — whether it can execute trades, provide signals, or only answer questions — are not documented beyond the generic "Web3 Trader" label.
No OpenAPI spec, dedicated docs page, or detailed API documentation was found for this endpoint. The output schema is minimal, derived entirely from the x402 challenge response. This is a testnet (Base Sepolia) deployment, suggesting it is in a development or preview stage rather than production-ready.
Capabilities
Use cases
- —Querying an AI agent about Web3 trading strategies or market conditions
- —Integrating a pay-per-message crypto trading assistant into an agent workflow
- —Exploring x402 protocol payment flows with a testnet trading agent
Fit
Best for
- —Developers experimenting with x402 payment protocol on Base Sepolia
- —Agent-to-agent workflows needing a Web3-knowledgeable conversational endpoint
- —Prototyping pay-per-use AI trading assistants
Not for
- —Production trading with real funds (this is a testnet deployment)
- —Users needing detailed API documentation or guaranteed SLAs
- —Direct trade execution without further verification of agent capabilities
Quick start
curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f1fc7f9c162996ee72c8ba \
-H 'Content-Type: application/json' \
-H 'X-PAYMENT: <x402_payment_header>' \
-d '{"input": "What are the top prediction market opportunities right now?"}'Example
Request
{
"input": "What are the top prediction market opportunities right now?"
}Response
{
"response": "Based on current Polymarket data, the top opportunities include..."
}Endpoint
Quality
No OpenAPI spec, no dedicated documentation, no usage examples, and the endpoint is on a testnet. The only schema information comes from the x402 challenge payload, which provides minimal input/output field descriptions. The response example is entirely inferred.
Warnings
- —Testnet deployment (Base Sepolia) — not suitable for production use with real funds
- —No API documentation found; /docs, /api, /pricing, /README all return 404
- —Agent capabilities (trade execution vs. informational responses) are unspecified
- —Maximum timeout of 1200 seconds suggests potentially very long response times
- —Response example is inferred — no actual successful response was captured
Citations
- —Payment is via x402 on Base Sepolia using USDC at 0x036CbD53842c5426634e7929541eC2318f3dCF7e with maxAmountRequired of 500000https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f1fc7f9c162996ee72c8ba
- —The endpoint accepts a POST with an 'input' string field and returns a 'response' string fieldhttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f1fc7f9c162996ee72c8ba
- —Questflow aggregates Polymarket, Pump.fun, OKX, and Opinion Labs for onchain market discoveryhttps://api-dev.intra-tls2.dctx.link
- —maxTimeoutSeconds is 1200https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f1fc7f9c162996ee72c8ba