Pay-per-message AI agent endpoint on Questflow's swarm network (Base Sepolia testnet)
What it does
This x402-enabled endpoint exposes a conversational AI agent hosted on Questflow's swarm infrastructure. Callers send a text message via POST and receive a text response from the agent. Payment is handled through the x402 protocol using USDC on the Base Sepolia testnet, with a maximum charge of 0.5 USDC per request.
Questflow is a platform for creating autonomous AI "Clones" that aggregate onchain markets (Polymarket, Pump.fun, OKX, Opinion Labs, etc.) to discover trading alpha, execute trades, and generate revenue. This particular endpoint is labeled "Personal use" and appears to be a single agent within Questflow's swarm system, identified by the QRN `qrn:swarm:68f9da71aa9a530561e6dfea`. The endpoint's output schema indicates a simple request/response pattern: you POST a JSON body with an `input` string field and receive a JSON object containing a `response` string field.
Note that this endpoint operates on the Base Sepolia testnet, meaning it uses testnet USDC — not real funds. Documentation beyond the x402 challenge and the Questflow landing page is essentially absent; there is no OpenAPI spec, no dedicated API docs, and no detailed description of what this specific agent does beyond "Personal use." The agent's actual capabilities, knowledge domain, and behavior are unknown.
Capabilities
Use cases
- —Sending a text query to an AI agent and receiving a text response via x402 micropayment
- —Testing x402 payment flows on Base Sepolia testnet
- —Integrating a pay-per-use conversational agent into an automated pipeline
Fit
Best for
- —Developers experimenting with x402 protocol payments on testnet
- —Agents that need a simple text-in/text-out conversational endpoint
- —Testing micropayment-gated AI interactions
Not for
- —Production use requiring mainnet payments (this is Base Sepolia testnet)
- —Users needing detailed API documentation or guaranteed SLAs
- —Complex multi-turn conversation or tool-use workflows (only simple input/output documented)
Quick start
curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f9da71aa9a530561e6dfea \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <your-x402-payment-header>" \
-d '{"input": "Hello, what can you do?"}'Example
Request
{
"input": "Hello, what can you do?"
}Response
{
"response": "I can help you with various tasks. How can I assist you today?"
}Endpoint
Quality
The endpoint is live (402 challenge confirmed) and has a basic output schema, but there is no OpenAPI spec, no dedicated documentation, no examples, and the agent's actual purpose beyond 'Personal use' is unknown. Testnet-only. Most fields are inferred from minimal data.
Warnings
- —Operates on Base Sepolia testnet — not real USDC, not suitable for production
- —No API documentation or OpenAPI spec available
- —Agent purpose and capabilities are undocumented beyond the label 'Personal use'
- —The example response is fabricated to match the output schema; actual agent behavior is unknown
- —No rate limits, SLAs, or usage terms documented
Citations
- —Endpoint returns 402 with x402 challenge requiring USDC payment on base-sepoliahttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f9da71aa9a530561e6dfea
- —maxAmountRequired is 500000 (0.5 USDC) with asset 0x036CbD53842c5426634e7929541eC2318f3dCF7e on base-sepoliahttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f9da71aa9a530561e6dfea
- —Questflow is a platform for AI Clones that aggregate onchain markets like Polymarket, Pump.fun, OKX, and Opinion Labshttps://api-dev.intra-tls2.dctx.link
- —Input schema expects a POST with a string 'input' field; output returns a string 'response' fieldhttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f9da71aa9a530561e6dfea