Questflow AI agent endpoint for personal-use chat interactions, paid via x402 on Base Sepolia
What it does
This is an x402-enabled endpoint hosted by Questflow that exposes a conversational AI agent ("swarm" agent) for personal use. The endpoint accepts a POST request with a JSON body containing an `input` string (your message to the agent) and returns a `response` string from the agent. Payment is handled via the x402 protocol using USDC on the Base Sepolia testnet, with a maximum amount of 500,000 units (likely 0.50 USDC given 6-decimal USDC).
Questflow is a platform focused on AI "Clones" that operate across onchain markets such as Polymarket, Pump.fun, OKX, and Opinion Labs. The platform lets users create autonomous AI agents that scan markets, execute trades, and generate revenue. This particular endpoint appears to be a single agent instance exposed for personal use, though the exact capabilities and domain expertise of this specific agent are not documented beyond the generic "Personal use" label.
Documentation is extremely sparse — there is no OpenAPI spec, no dedicated docs page, and no detailed description of what this agent can do or what domain knowledge it has. The endpoint is live and returns a valid x402 challenge on POST, confirming it is operational on the Base Sepolia testnet. However, since Base Sepolia is a testnet, this endpoint is likely intended for development or experimentation rather than production use.
Capabilities
Use cases
- —Sending chat messages to a Questflow AI agent and receiving text responses
- —Testing x402 payment flows with a conversational agent on Base Sepolia
- —Integrating an autonomous AI agent into a workflow via HTTP POST
Fit
Best for
- —Developers experimenting with x402 payment protocol for AI agents
- —Users wanting to interact with a Questflow swarm agent via API
- —Testing paid conversational agent endpoints on a testnet
Not for
- —Production applications requiring mainnet payment rails
- —Users needing detailed API documentation or guaranteed SLAs
- —Non-crypto use cases where standard API keys are preferred over x402
Quick start
curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f9a62e41a422fbbe931c4b \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>" \
-d '{"input": "Hello, what can you help me with?"}'Example
Request
{
"input": "Hello, what can you help me with?"
}Response
{
"response": "I can help you with various tasks. What would you like to know?"
}Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with an outputSchema, but there is no OpenAPI spec, no dedicated documentation, no examples, and the description is just "Personal use." The agent's actual capabilities are unknown. Base Sepolia testnet suggests this is a dev/test endpoint.
Warnings
- —No API documentation or OpenAPI spec available
- —Agent capabilities and domain expertise are completely undocumented
- —Endpoint uses Base Sepolia testnet — not suitable for production
- —The existing title and description ('Personal use') provide no meaningful information about what this agent does
- —Response schema is inferred from outputSchema; no actual response sample was captured
Citations
- —Endpoint returns a valid x402 challenge with x402Version 1 on POSThttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f9a62e41a422fbbe931c4b
- —Payment is in USDC on Base Sepolia with maxAmountRequired of 500000https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f9a62e41a422fbbe931c4b
- —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