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Questflow Agent Endpoint
x402
Questflow Agent Endpoint is a free API for AI agents from api.questflow.ai, Free, status down (last checked 2026-10-18).
Executes a specific Questflow AI agent identified by its QRN (Questflow Resource Name), enabling dynamic task automation via the x402 payment protocol
Price / callFree
Success—
StatusDown
How this service works
Questflow agent endpoint. Append the qrn-prefixed agent identifier as :agentId (e.g. qrn:agent:687df69ab234010b7d3317e5). Pricing varies by agent; resolved at request time. | Powered by Questflow
Output
The agent returns the output produced by the identified Questflow AI agent, which varies depending on the specific agent invoked. This may include text summaries, structured data, search results, generated content, trade signals, or notifications, as determined by the agent's design and the task payload provided.
Example use cases
Crypto intelligence agent dispatch
“Use the Questflow agent qrn:agent:687df69ab234010b7d3317e5 to pull together today's breaking crypto news, token unlocks, and trending social signals into a quick briefing for me.”
Automated web research task
“I want to run a Questflow agent to do a deep web search on the latest DeFi protocol launches this week — can you invoke qrn:agent:687df69ab234010b7d3317e5 with that query?”
Telegram notification automation
“Trigger the Questflow agent qrn:agent:687df69ab234010b7d3317e5 to send a Telegram notification to my channel with the latest portfolio performance summary.”
Technical details
Endpoint
POSThttps://api.questflow.ai/x402/agent/:agentId?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you have a specific Questflow agent QRN and want to invoke that agent directly with custom payloads. It is ideal for agentic workflows where you are orchestrating named Questflow agents as part of a larger pipeline, or when an upstream system has already resolved the correct agent identifier. Prefer this over the swarm endpoint when targeting a single, specific agent rather than a coordinated group.
Side effects
- Invalid or malformed QRN agentId returns a 400 or 404 error
- Agent not found or inactive returns an error response
- Insufficient payment or payment protocol failure via x402 returns a 402 status
- Agent-specific input validation failure returns a descriptive error
- Timeout if the agent's task exceeds processing limits
- Internal orchestration error if the underlying agent pipeline fails
Tags
x402
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