x402-payable Web3 trading agent that responds to natural-language prompts via Questflow
What it does
Web3 Trader is an x402-enabled AI agent endpoint hosted on Questflow's infrastructure. It accepts a natural-language text input via HTTP POST and returns a text response from a Web3-focused trading agent. Payment is handled through the x402 protocol on the Base Sepolia testnet using USDC, with a maximum charge of 0.5 USDC per request.
The endpoint is part of Questflow's broader "AI Clone" platform, which aggregates onchain markets such as Polymarket, Pump.fun, Opinion Labs, and OKX. The agent is designed to scan crypto and prediction markets, detect patterns, and provide trading-related responses. However, the exact capabilities of this specific agent endpoint — whether it can execute trades, provide signals, or merely answer questions — are not documented beyond the minimal input/output schema exposed in the x402 challenge.
Documentation is extremely sparse. There is no OpenAPI spec, no dedicated docs page, and no usage examples beyond the x402 payment challenge metadata. The output schema indicates a simple string-in / string-out interface. The endpoint is on a development subdomain (api-dev) and uses a testnet (Base Sepolia), suggesting this is not a production service. Prospective users should treat this as experimental.
Capabilities
Use cases
- —Asking a Web3-focused AI agent for market analysis or trading ideas
- —Integrating an x402-payable trading agent into an autonomous agent pipeline
- —Querying onchain market conditions via natural language
Fit
Best for
- —Developers experimenting with x402 payment protocol on Base Sepolia testnet
- —Agent-to-agent workflows that need a pay-per-call Web3 trading responder
- —Exploring Questflow's swarm agent infrastructure
Not for
- —Production trading with real funds (this uses a testnet)
- —Users who need detailed API documentation or guaranteed SLAs
- —Automated trade execution (no evidence the endpoint executes trades directly)
Quick start
curl -X POST \
https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f89e4b88e91d0ba6c96885 \
-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": "Currently trending on Polymarket: Fed rate decision (June), ETH price above $4K by July, and US election winner 2024. Pump.fun is seeing high volume on several new meme token launches."
}Endpoint
Quality
No OpenAPI spec, no documentation pages, no usage examples, and the endpoint runs on a testnet dev subdomain. The only structured information comes from the x402 challenge metadata, which provides a minimal input/output schema. The response example is entirely inferred.
Warnings
- —Endpoint is on a development subdomain (api-dev) and uses Base Sepolia testnet — not production-ready
- —No API documentation, OpenAPI spec, or usage examples are available
- —The example response is fabricated for illustration; actual agent behavior is unknown
- —maxAmountRequired of 500000 in USDC units (0.5 USDC) is on testnet tokens with no real value
- —Agent capabilities (trade execution vs. chat-only) are unspecified
Citations
- —Payment uses x402 protocol on base-sepolia with USDC asset 0x036CbD53842c5426634e7929541eC2318f3dCF7e and maxAmountRequired of 500000https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f89e4b88e91d0ba6c96885
- —Description from x402 challenge is 'Web3 Trader | Powered by Questflow'https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f89e4b88e91d0ba6c96885
- —Questflow aggregates Polymarket, Pump.fun, Opinion Labs, OKX and other onchain marketshttps://api-dev.intra-tls2.dctx.link
- —Input schema expects a string field 'input' and output returns a string field 'response'https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f89e4b88e91d0ba6c96885