AI-powered Web3 trading agent accessible via x402 micropayment on Base Sepolia
What it does
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.
The 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.
Note 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.
Capabilities
Use cases
- —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
Fit
Best for
- —Developers experimenting with x402 payment protocol on Base Sepolia
- —Agent-to-agent communication requiring Web3 trading knowledge
- —Prototyping micropayment-gated AI trading assistants
Not for
- —Production trading with real funds (this uses a testnet)
- —Users needing detailed, documented API contracts or SLAs
- —Non-crypto or general-purpose chat applications
Quick start
curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f5abac93d1a55ee56c9586 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <your-x402-payment-header>" \
-d '{"input": "What are the top trending tokens on Pump.fun right now?"}'Example
Request
{
"input": "What are the top trending tokens on Pump.fun right now?"
}Response
{
"response": "Based on current market data, the top trending tokens on Pump.fun include..."
}Endpoint
Quality
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 unknown.
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
Citations
- —The endpoint returns a 402 challenge requiring USDC on base-sepolia with maxAmountRequired of 500000https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f5abac93d1a55ee56c9586
- —Questflow aggregates Polymarket, Pump.fun, Opinion Labs, OKX and other onchain marketshttps://api-dev.intra-tls2.dctx.link
- —The payment asset is USDC at contract 0x036CbD53842c5426634e7929541eC2318f3dCF7e with maxTimeoutSeconds of 1200https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f5abac93d1a55ee56c9586
- —The endpoint description from the x402 challenge is 'Web3 Trader | Powered by Questflow'https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f5abac93d1a55ee56c9586