x402base-sepoliaquality 0.25

Pay-per-message AI agent endpoint on Questflow's swarm network via x402 micropayments

Price
0.5 USDC / call
Protocol
x402
Verified
no
Endpoint
https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f58abc98e12d91429de779

What it does

This x402-enabled endpoint exposes a Questflow "swarm" agent that accepts a text message and returns a text response, paid per request using USDC on the Base Sepolia testnet. The endpoint follows the x402 payment protocol: callers must include an X-PAYMENT header with a valid payment proof to access the agent. The maximum payment required per call is 500,000 units of the USDC token (contract 0x036CbD53842c5426634e7929541eC2318f3dCF7e) on Base Sepolia, with a timeout of up to 1200 seconds.

Questflow is a platform for creating autonomous AI "Clones" that aggregate onchain markets (Polymarket, Pump.fun, OKX, Opinion Labs, etc.) to discover alpha, execute trades, and generate revenue. This particular endpoint is labeled "Personal use" and appears to be a single agent instance within Questflow's swarm infrastructure. The input/output schema is minimal: send a JSON body with an "input" string field and receive a "response" string field.

Documentation is sparse — there is no OpenAPI spec, no dedicated docs page, and no detailed API reference available. The endpoint is on a development subdomain (api-dev), suggesting it may be a staging or testnet deployment rather than a production service. Pricing is denominated in testnet USDC, which further indicates this is not yet a mainnet production endpoint.

Capabilities

x402-paymentagent-chattext-in-text-outbase-sepoliausdc-micropaymentautonomous-agentonchain-market-aggregation

Use cases

  • —Sending ad-hoc queries to a Questflow AI agent and paying per message via x402
  • —Integrating an autonomous onchain-market-aware agent into a workflow via HTTP POST
  • —Testing x402 micropayment flows with an AI agent on Base Sepolia testnet

Fit

Best for

  • —Developers experimenting with x402 payment protocol for AI agents
  • —Users wanting pay-per-use access to a Questflow swarm agent without subscriptions
  • —Prototyping agent-to-agent communication with micropayments on testnet

Not for

  • —Production trading or financial decisions (this is a testnet/dev endpoint)
  • —Users needing detailed API documentation or guaranteed SLAs
  • —Bulk or high-throughput agent interactions (1200s max timeout per request)

Quick start

curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f58abc98e12d91429de779 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <your-x402-payment-proof>" \
  -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 scanning, the top opportunities include..."
}

Endpoint

URLhttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f58abc98e12d91429de779
Transporthttp
Protocolx402
Pay to0x22283a9A198B1b3cF83a8d887EEA4FcC117Ae8dE
CurrencyUSDC

Quality

0.25/ 1.00

No OpenAPI spec, no docs endpoint, no examples beyond the x402 challenge schema. The endpoint is on a dev subdomain using testnet tokens. The input/output schema is minimal and inferred entirely from the x402 challenge outputSchema field. Most listing details are inferred.

Warnings

  • —Development/staging endpoint (api-dev subdomain) — not production
  • —Payment is in testnet USDC on Base Sepolia, not mainnet
  • —No API documentation, OpenAPI spec, or usage examples available
  • —Max timeout of 1200 seconds suggests potentially long-running agent calls
  • —The existing title 'Personal use' provides no meaningful description of the agent's capabilities
  • —Response schema is inferred from x402 challenge metadata only — actual responses may differ

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 18:32:47Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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