x402base-sepoliaquality 0.30

Chat with a Web3 trading agent via x402 micropayment on Base Sepolia

Price
0.5 USDC / call
Protocol
x402
Verified
no
Endpoint
https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f8a31888e91d0ba6c976f7

What it does

Web3 Trader is an x402-payable AI agent endpoint hosted by Questflow. It accepts a text message and returns a response from a Web3-focused trading agent. Payment is handled via the x402 protocol on the Base Sepolia testnet using USDC (asset 0x036CbD53842c5426634e7929541eC2318f3dCF7e), with a maximum charge of 0.5 USDC per request.

The endpoint is a simple POST interface: you send a JSON body with an "input" string field containing your message, and receive a JSON response with a "response" string field. The agent is part of Questflow's broader platform, which aggregates onchain markets (Polymarket, Pump.fun, OKX, Opinion Labs) and provides AI-driven trading clones that scan markets, detect patterns, and execute trades. However, the specific capabilities exposed through this single endpoint are limited to conversational interaction — the probe material does not document what trading actions, if any, the agent can execute on your behalf through this API.

No OpenAPI spec, dedicated docs, or pricing page was found for this endpoint. The x402 challenge is the primary source of schema information. The endpoint runs on a development/staging domain (api-dev), suggesting it may not be production-stable. The maximum timeout of 1200 seconds (20 minutes) indicates responses may involve longer-running agent workflows.

Capabilities

x402-paymentweb3-trading-agentconversational-aibase-sepolia-usdconchain-market-aggregation

Use cases

  • —Querying an AI agent for Web3 market insights via micropayment
  • —Integrating an autonomous trading agent into an agent-to-agent workflow
  • —Asking for analysis on prediction markets, meme coins, or token launches

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-query trading assistant integrations

Not for

  • —Production trading with real funds (this uses Base Sepolia testnet)
  • —Users needing detailed API documentation or guaranteed uptime
  • —Bulk data retrieval or structured market data feeds

Quick start

curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f8a31888e91d0ba6c976f7 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_token>" \
  -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

URLhttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f8a31888e91d0ba6c976f7
Transporthttp
Protocolx402
Pay to0xF67A70744CcA9727D9585B3Db13CD747424021f5
CurrencyUSDC

Quality

0.30/ 1.00

No OpenAPI spec, no dedicated documentation, no examples beyond the x402 challenge schema. The endpoint is on a dev/staging domain. The response example is entirely inferred. Only the x402 challenge provides structural information about the API.

Warnings

  • —Endpoint is on a development domain (api-dev), suggesting it may not be production-ready
  • —Uses Base Sepolia testnet USDC — not real funds, likely for testing only
  • —No API documentation found; /docs, /api, /pricing, /README all return 404
  • —Response format and agent capabilities are inferred from minimal schema in x402 challenge
  • —maxTimeoutSeconds is 1200 (20 minutes), indicating potentially very slow responses

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 18:52:19Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/d49T83