Pay-per-call 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 that accepts a text prompt and returns a response related to Web3 trading. The endpoint uses the x402 payment protocol on the Base Sepolia testnet, accepting USDC payments (up to 0.5 USDC per call) before processing requests. You send a POST request with an `input` string (your message to the agent) and receive a `response` string back.
The agent is part of Questflow's broader "AI Clone" platform, which aggregates onchain markets such as Polymarket, Pump.fun, OKX, and Opinion Labs for autonomous trading, alpha discovery, and signal generation. However, the specific capabilities of this particular swarm endpoint — whether it executes trades, provides signals, or simply answers trading-related questions — are not documented beyond the minimal x402 challenge schema.
Documentation is extremely sparse: there is no OpenAPI spec, no dedicated docs page, and no usage examples beyond what can be inferred from the x402 challenge payload. The endpoint is on a development subdomain (`api-dev`) using a testnet (`base-sepolia`), suggesting this is not a production service. Prospective users should treat this as experimental.
Capabilities
Use cases
- —Querying an AI agent for Web3 trading insights or signals
- —Programmatic pay-per-call access to a crypto-focused conversational agent
- —Testing x402 payment flows with a trading-themed agent on Base Sepolia
Fit
Best for
- —Developers experimenting with x402 payment protocol integrations
- —Agents that need on-demand Web3 trading commentary or signals
- —Prototyping pay-per-use AI agent interactions on testnet
Not for
- —Production trading with real funds (this is on Base Sepolia testnet)
- —Users needing detailed API documentation or guaranteed SLAs
- —Non-crypto use cases with no Web3 relevance
Quick start
curl -X POST \
https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f065be410234576b2df398 \
-H 'Content-Type: application/json' \
-H 'X-PAYMENT: <x402_payment_token>' \
-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 on-chain activity, the top trending tokens on Pump.fun include $EXAMPLE and $DEMO with significant volume increases in the last hour."
}Endpoint
Quality
No OpenAPI spec, no docs, 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 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 guides available
- —Response format and agent capabilities are inferred from minimal x402 outputSchema
- —The example response is fabricated for illustration; actual behavior is unknown
- —Payment asset is testnet USDC (0x036CbD53842c5426634e7929541eC2318f3dCF7e on base-sepolia)
Citations
- —x402 challenge requires USDC payment on base-sepolia with maxAmountRequired of 500000https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f065be410234576b2df398
- —Endpoint description is 'Web3 Trader | Powered by Questflow' with mimeType application/jsonhttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f065be410234576b2df398
- —Questflow platform aggregates Polymarket, Pump.fun, OKX, and Opinion Labs for onchain market tradinghttps://api-dev.intra-tls2.dctx.link
- —Input schema accepts a string 'input' field and output returns a string 'response' fieldhttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f065be410234576b2df398