Multi-agent AI swarm endpoint on Questflow, paid per-request via x402 on Base with USDC.
What it does
This x402-enabled endpoint exposes a collaborative AI swarm hosted by Questflow. The swarm accepts a text prompt via HTTP POST and returns a text response generated by multiple coordinated AI agents working together. Payment is handled inline using the x402 protocol: each request costs up to 0.50 USDC (maxAmountRequired of 500000 in 6-decimal USDC units) on the Base network, paid to the specified wallet address.
The interface is minimal: send a JSON body with an `input` string field and receive a JSON object containing a `response` string. The x402 challenge specifies a maximum timeout of 1200 seconds (20 minutes), suggesting the swarm may perform non-trivial multi-step reasoning or coordination before returning a result. No OpenAPI spec or detailed API documentation is available; the schema is derived entirely from the x402 payment challenge's `outputSchema`.
Questflow is a platform focused on autonomous AI agents for onchain markets (prediction markets, meme coins, trading). This particular swarm endpoint is identified by the QRN `qrn:swarm:68f05c8a0ebd74a7911a7f7a`. Beyond the x402 challenge metadata and the platform's marketing site, there is no additional technical documentation describing the swarm's internal architecture, agent count, specialization, or quality guarantees.
Capabilities
Use cases
- —Sending complex queries that benefit from multi-agent collaboration
- —Integrating pay-per-request AI reasoning into autonomous agent workflows
- —Accessing on-demand AI swarm intelligence without subscription commitments
Fit
Best for
- —Developers building x402-native agent-to-agent payment flows
- —Complex prompts where multi-agent coordination may outperform a single model
- —Crypto-native applications that already hold USDC on Base
Not for
- —High-volume, low-latency use cases (20-minute max timeout suggests slow responses)
- —Users needing detailed API documentation, SLAs, or schema guarantees
- —Applications requiring deterministic or auditable reasoning chains
Quick start
curl -X POST https://api.questflow.ai/x402/swarm/qrn:swarm:68f05c8a0ebd74a7911a7f7a \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>" \
-d '{"input": "Summarize the latest trends in prediction markets."}'Example
Request
{
"input": "Summarize the latest trends in prediction markets."
}Response
{
"response": "Prediction markets have seen significant growth in 2024, driven by..."
}Endpoint
Quality
No OpenAPI spec, no dedicated API docs, and no usage examples are available. The only technical detail comes from the x402 payment challenge's outputSchema, which defines a single input/output string pair. The swarm's internal behavior, agent composition, and reliability are entirely undocumented.
Warnings
- —No API documentation found (all /docs, /api, /README routes return 404)
- —No OpenAPI or ai-plugin manifest available
- —Swarm internals (agent count, models used, coordination strategy) are completely opaque
- —maxTimeoutSeconds of 1200 suggests potentially very long response times
- —Pricing is inferred from maxAmountRequired; actual per-request cost may vary
Citations
- —x402 challenge requires up to 500000 units (0.50 USDC) on Base network, paid to 0x01bB181B45d2a540dd40122dab6a91Ac844b4256https://api.questflow.ai/x402/swarm/qrn:swarm:68f05c8a0ebd74a7911a7f7a
- —The endpoint accepts a POST with an 'input' string and returns a 'response' string, per the outputSchema in the x402 challengehttps://api.questflow.ai/x402/swarm/qrn:swarm:68f05c8a0ebd74a7911a7f7a
- —maxTimeoutSeconds is 1200 (20 minutes)https://api.questflow.ai/x402/swarm/qrn:swarm:68f05c8a0ebd74a7911a7f7a
- —Questflow is a platform for autonomous AI agents focused on onchain markets including Polymarket, Pump.fun, OKX, and Opinion Labshttps://api.questflow.ai