x402base-sepoliaquality 0.25

Pay-per-message Web3 trading agent via x402 on Base Sepolia testnet

Price
0.5 USDC / call
Protocol
x402
Verified
no
Endpoint
https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f1de319c162996ee728674

What it does

Web3 Trader is an x402-payable AI agent endpoint hosted by Questflow. It accepts a text prompt and returns a response from a Web3-focused trading agent. The endpoint uses the x402 payment protocol on the Base Sepolia testnet, accepting USDC payments (up to 0.5 USDC per request based on the maxAmountRequired of 500000 in 6-decimal USDC units). The agent is part of Questflow's "swarm" infrastructure, identified by a QRN (Questflow Resource Name).

Based on the parent platform's description, Questflow builds AI "Clones" that aggregate onchain markets such as Polymarket, Pump.fun, OKX, and Opinion Labs for discovering trading opportunities and executing trades. However, the specific capabilities of this particular Web3 Trader agent endpoint are not documented beyond the x402 challenge metadata. The endpoint accepts a POST request with a JSON body containing an "input" string field (your message to the agent) and returns a JSON response with a "response" string field.

Important caveats: This endpoint runs on Base Sepolia, which is a testnet — meaning payments use testnet USDC, not real funds. There is no OpenAPI spec, no dedicated documentation page, and no usage examples beyond what can be inferred from the x402 challenge's outputSchema. The maximum timeout of 1200 seconds (20 minutes) suggests the agent may perform complex or long-running operations before responding.

Capabilities

x402-paymentweb3-trading-agenttext-in-text-outbase-sepolia-testnetusdc-paymentautonomous-agentonchain-market-aggregation

Use cases

  • —Querying an AI agent about Web3 trading opportunities across aggregated onchain markets
  • —Getting AI-generated trading signals or market analysis via a pay-per-message interface
  • —Integrating an autonomous Web3 trading agent into an agent-to-agent workflow using x402 payments

Fit

Best for

  • —Developers experimenting with x402 payment protocol for AI agent access
  • —Testing pay-per-query Web3 trading agents on a testnet
  • —Agent-to-agent commerce workflows involving crypto market intelligence

Not for

  • —Production trading with real funds (this is on Base Sepolia testnet)
  • —Users needing detailed API documentation or guaranteed response schemas
  • —High-frequency or low-latency trading (max timeout is 1200 seconds)

Quick start

curl -X POST \
  https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f1de319c162996ee728674 \
  -H 'Content-Type: application/json' \
  -H 'X-PAYMENT: <x402-payment-header>' \
  -d '{"input": "What are the top trending prediction markets on Polymarket right now?"}'

Example

Request

{
  "input": "What are the top trending prediction markets on Polymarket right now?"
}

Response

{
  "response": "Here are the top trending prediction markets on Polymarket..."
}

Endpoint

URLhttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f1de319c162996ee728674
Transporthttp
Protocolx402
Pay to0x4182d4E3F57Bb78916552977A8eE1d5541fD684b
CurrencyUSDC

Quality

0.25/ 1.00

No OpenAPI spec, no documentation pages (all return 404), no usage examples, and the endpoint is on a testnet. The only structured information comes from the x402 challenge metadata, which provides a minimal input/output schema. Significant inference is required for most listing fields.

Warnings

  • —Endpoint is on Base Sepolia testnet — payments use testnet USDC, not real funds
  • —No API documentation available (all doc routes return 404)
  • —No OpenAPI or AI plugin manifest found
  • —Agent behavior and response quality are unknown — no examples or guarantees provided
  • —maxTimeoutSeconds is 1200 (20 minutes), indicating potentially very slow responses
  • —The example response JSON is entirely fabricated for illustration; actual responses are undocumented

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 18:30:54Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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