Chat-based Web3 trading agent via x402 micropayments on Base Sepolia
What it does
Web3 Trader is an x402-enabled AI agent endpoint powered by Questflow. It accepts a text message via POST and returns a response from a Web3 trading agent. The endpoint uses the x402 payment protocol on the Base Sepolia testnet, accepting USDC payments with a maximum amount of 500,000 units (likely 0.50 USDC given 6-decimal USDC) per request.
The agent is part of Questflow's "AI Clone" platform, which aggregates onchain markets including Polymarket, Pump.fun, Opinion Labs, and OKX. The platform claims to scan thousands of markets 24/7, detecting patterns, sentiment shifts, and whale moves. However, the specific capabilities of this particular "Web3 Trader" agent — whether it provides trade signals, executes trades, or simply answers questions about Web3 trading — are not documented beyond the generic description.
The endpoint is live and returns a proper x402 challenge (HTTP 402) when called without payment. The input schema is straightforward: a single JSON body field `input` (string) representing your message to the agent, and the output is a single `response` (string). No OpenAPI spec or detailed API documentation is available. The endpoint runs on a development API server (`api-dev`), suggesting this may be a staging or testnet deployment rather than production.
Capabilities
Use cases
- —Querying an AI agent about Web3 trading opportunities across aggregated markets
- —Getting trade signals or market analysis from an autonomous trading agent
- —Integrating a pay-per-message Web3 trading assistant into an agent workflow
- —Exploring x402-based micropayment agent interactions on Base Sepolia testnet
Fit
Best for
- —Developers experimenting with x402 payment protocol for AI agent access
- —Users wanting chat-based Web3 market insights via micropayments
- —Agent-to-agent workflows that need on-demand crypto trading intelligence
Not for
- —Production trading with real funds (this is on Base Sepolia testnet)
- —Users needing detailed API documentation or guaranteed SLAs
- —Direct trade execution on exchanges (no evidence this endpoint executes trades)
Quick start
curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f2093d9c162996ee72e5f6 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>" \
-d '{"input": "What are the top trending prediction markets right now?"}'Example
Request
{
"input": "What are the top trending prediction markets right now?"
}Response
{
"response": "Based on current market activity, the top trending prediction markets include..."
}Endpoint
Quality
The endpoint is live with a valid x402 challenge and a basic input/output schema, but there is no OpenAPI spec, no dedicated API documentation, and the agent's specific capabilities are unclear beyond the generic 'Web3 Trader' label. The endpoint is on a dev server using testnet, adding uncertainty about production readiness.
Warnings
- —Endpoint is on a development server (api-dev) and uses Base Sepolia testnet — not suitable for production use with real funds
- —No API documentation or OpenAPI spec available
- —Agent capabilities are not specifically documented; the example response is inferred
- —The exact denomination of maxAmountRequired (500000) is unclear — likely 0.50 USDC assuming 6 decimals
Citations
- —The endpoint returns a valid x402 challenge with USDC payment on Base Sepoliahttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f2093d9c162996ee72e5f6
- —Questflow aggregates Polymarket, Pump.fun, Opinion Labs, OKX and other onchain marketshttps://api-dev.intra-tls2.dctx.link
- —The platform claims to scan thousands of markets 24/7 detecting patterns, sentiment shifts, and whale moveshttps://api-dev.intra-tls2.dctx.link
- —Input schema requires a string 'input' field and returns a string 'response' fieldhttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f2093d9c162996ee72e5f6