Pay-per-message AI agent endpoint on Questflow's swarm network via x402 micropayments
What it does
This is an x402-enabled endpoint hosted on Questflow's development API (api-dev.intra-tls2.dctx.link) that exposes a conversational AI agent behind a micropayment wall. 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) per request.
Questflow is a platform focused on autonomous AI "Clones" that aggregate onchain markets (Polymarket, Pump.fun, OKX, Opinion Labs) to discover alpha, execute trades, and generate revenue. This particular endpoint is labeled "Personal use" and appears to be a single agent within Questflow's swarm infrastructure, identified by the QRN (Questflow Resource Name) `qrn:swarm:68fa0a5a4c723a3e3fffce93`.
Note that this is a development/testnet endpoint (indicated by "api-dev" in the URL and Base Sepolia as the payment network). There is no public API documentation, no OpenAPI spec, and the endpoint's specific agent capabilities beyond accepting a text message and returning a text response are unknown. The output schema is minimal: one input field and one output field, both strings.
Capabilities
Use cases
- —Sending a message to a Questflow AI agent and receiving a text response via micropayment
- —Testing x402 payment flows on Base Sepolia testnet
- —Integrating pay-per-query AI agent access into autonomous agent workflows
Fit
Best for
- —Developers experimenting with x402 micropayment protocol on testnet
- —Agent-to-agent communication where one agent pays another for responses
- —Exploring Questflow's swarm agent infrastructure
Not for
- —Production workloads requiring mainnet payment settlement
- —Users needing detailed API documentation or guaranteed SLAs
- —Bulk or high-throughput AI inference tasks
Quick start
curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68fa0a5a4c723a3e3fffce93 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>" \
-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) with a clear output schema defining input/output fields, but there is no API documentation, no OpenAPI spec, and the agent's specific capabilities are undocumented. The endpoint is on a dev/testnet environment. The listing description and title ('Personal use') are minimal and uninformative.
Warnings
- —This is a development/testnet endpoint (api-dev, Base Sepolia) — not suitable for production use
- —No public API documentation or OpenAPI spec available
- —Agent capabilities beyond simple text chat are unknown
- —The existing title and description ('Personal use') provide no meaningful information about the agent's purpose
- —Response example is inferred from the output schema, not from an actual response
Citations
- —The endpoint returns a 402 challenge requiring USDC payment on Base Sepolia with maxAmountRequired of 500000https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68fa0a5a4c723a3e3fffce93
- —The output schema specifies a POST method with an 'input' string field and a 'response' string output fieldhttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68fa0a5a4c723a3e3fffce93
- —Questflow is a platform for autonomous AI Clones that aggregate onchain markets like Polymarket, Pump.fun, OKX, and Opinion Labshttps://api-dev.intra-tls2.dctx.link
- —Payment is made to address 0x78e53162f9A391FD9552905636DC0D7c286E5dD9 using USDC asset 0x036CbD53842c5426634e7929541eC2318f3dCF7ehttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68fa0a5a4c723a3e3fffce93