x402base-sepoliaquality 0.30

x402-payable research agent that responds to natural-language queries, paid per-call in USDC on Base Sepolia.

Price
0.5 USDC / call
Protocol
x402
Verified
no
Endpoint
https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68db86fb82f61ca4a16835b5

What it does

The Researcher endpoint is an AI agent hosted on Questflow's infrastructure, accessible via the x402 payment protocol. Callers send a POST request with a natural-language prompt in the `input` field and receive a text `response` from the agent. Payment is handled through an x402 header using USDC on the Base Sepolia testnet, with a maximum charge of 0.50 USDC per request (500000 in 6-decimal units) and a timeout of up to 1200 seconds.

Questflow positions itself as a platform for autonomous AI "Clones" that scan onchain markets (Polymarket, Pump.fun, OKX, Opinion Labs, etc.) for trading alpha. The Researcher agent likely performs research tasks related to these domains, though the exact scope and capabilities are not documented beyond the generic description "Researcher." No OpenAPI spec, detailed documentation, or usage examples are published for this endpoint.

Because this endpoint runs on Base Sepolia (a testnet), it is suitable for experimentation and integration testing rather than production workloads. The lack of formal API documentation, response examples, and capability descriptions means callers should treat this as an early-stage or developer-preview service.

Capabilities

x402-paymentnatural-language-queryai-agentresearchusdc-paymentbase-sepoliapost-endpoint

Use cases

  • —Querying an AI agent for market research or analysis via a single natural-language prompt
  • —Integrating a pay-per-call research agent into an autonomous agent pipeline
  • —Testing x402 payment flows with a live AI agent on Base Sepolia

Fit

Best for

  • —Developers experimenting with x402 payment-gated AI endpoints
  • —Agent-to-agent workflows that need an on-demand research capability
  • —Prototyping paid AI query services on testnet

Not for

  • —Production workloads requiring guaranteed SLAs or mainnet settlement
  • —Use cases needing structured, schema-validated research output
  • —Users who need detailed documentation or transparent model provenance

Quick start

curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68db86fb82f61ca4a16835b5 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_header>" \
  -d '{"input": "What are the top prediction markets by volume today?"}'

Example

Request

{
  "input": "What are the top prediction markets by volume today?"
}

Response

{
  "response": "The top prediction markets by volume today include..."
}

Endpoint

URLhttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68db86fb82f61ca4a16835b5
Transporthttp
Protocolx402
Pay to0x219f6D18aF7FB8779d9f032eC66Fb708F739714f
CurrencyUSDC

Quality

0.30/ 1.00

No OpenAPI spec, no dedicated documentation, no real response examples, and the endpoint runs on a testnet. The only schema information comes from the x402 challenge's outputSchema. The agent's actual research capabilities are entirely undocumented.

Warnings

  • —Runs on Base Sepolia testnet — not suitable for production use
  • —No formal API documentation or OpenAPI spec available
  • —Agent capabilities and research scope are undocumented; 'Researcher' is the only description
  • —Response examples are inferred, not sourced from actual calls
  • —Maximum timeout of 1200 seconds suggests potentially long-running requests

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 18:32:34Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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