Want to see a live MCP weather tool working inside the new n8n Agent node?
I built a full demo workflow that lets you ask for current or 5-day weather forecasts using a hosted MCP server. It uses OpenWeatherMap behind the scenes — but no API key is required to use the weather tool.
Everything is preconfigured. Just paste the JSON below, plug in your OpenAI key, and go.
Highlights
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Uses new Agent + Tool calling features -
Hosted MCP tool endpoint: https://mcp-weathertrax.jaredco.com
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Preconfigured system prompt + workflow
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Only setup step: add your OpenAI key to the credential
How to Use
- Copy the JSON below
- In n8n → Import Workflow → Paste JSON
- Add your OpenAI key (or change model)
- Hit Run!