x402-payable AI agent swarm endpoint on Questflow, paid per-call in USDC on Base
What it does
This endpoint exposes a Questflow "swarm" agent via the x402 payment protocol. Callers send a POST request with a text message in the `input` field and receive a text `response` from the agent. Payment is handled through the x402 header using USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on the Base network, with a maximum charge of 500,000 base units (0.50 USDC) per request. The endpoint supports a maximum timeout of 1200 seconds.
Questflow is a platform focused on autonomous AI agents ("Clones") that operate across onchain markets such as Polymarket, Pump.fun, OKX, and Opinion Labs. The platform emphasizes autonomous trading, signal generation, and market scanning. However, the specific capabilities of this particular swarm agent are not documented — the listing title and description are both simply "new swarm," providing no detail on what the agent actually does or what domain it covers.
There is no OpenAPI spec, no dedicated API documentation, and no agents.txt file available. The swarm identifier is `qrn:swarm:68e5111b7ad7f91b3bcf7092`. Because the agent's purpose is undocumented, callers should treat this as an experimental or generic agent endpoint with unknown behavior.
Capabilities
Use cases
- —Sending natural-language queries to an AI agent swarm and receiving text responses
- —Integrating pay-per-call AI agent access into automated pipelines via x402
- —Programmatic interaction with Questflow autonomous agents
Fit
Best for
- —Developers experimenting with x402 payment-gated AI endpoints
- —Agents that need to call other agents with micropayments on Base
- —Exploring Questflow's swarm agent capabilities
Not for
- —Production workloads requiring documented, stable API contracts
- —Users who need detailed schema validation or OpenAPI specs
- —Free or high-volume low-cost inference
Quick start
curl -X POST https://api.questflow.ai/x402/swarm/qrn:swarm:68e5111b7ad7f91b3bcf7092 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>" \
-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": "Here are the current top prediction market opportunities..."
}Endpoint
Quality
The x402 challenge provides basic schema (input/output fields, payment details), but there is no API documentation, no OpenAPI spec, no description of what the swarm agent actually does, and the listing title/description are placeholder text ('new swarm'). The response example is entirely inferred.
Warnings
- —Agent purpose and capabilities are completely undocumented — title and description are both just 'new swarm'
- —No OpenAPI spec, no API docs, no agents.txt available
- —Response format is inferred from the x402 outputSchema; actual behavior is unknown
- —The specific swarm agent may be experimental or a test deployment
- —Questflow platform focuses on crypto/trading which may be subject to financial regulations
Citations
- —Payment is in USDC on Base network with maxAmountRequired of 500000 and maxTimeoutSeconds of 1200https://api.questflow.ai/x402/swarm/qrn:swarm:68e5111b7ad7f91b3bcf7092
- —The endpoint accepts a POST with an 'input' string field and returns a 'response' string fieldhttps://api.questflow.ai/x402/swarm/qrn:swarm:68e5111b7ad7f91b3bcf7092
- —Questflow aggregates Polymarket, Pump.fun, Opinion Labs, OKX and other onchain marketshttps://api.questflow.ai
- —Payment address is 0xFf5e014dd5a2eb03c31BD981d0F23bc4103156F9https://api.questflow.ai/x402/swarm/qrn:swarm:68e5111b7ad7f91b3bcf7092