n8n MCP Server

@chiisen

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基本信息

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其他

许可证

MIT license

传输方式

stdio

作者

chiisen

关于 n8n MCP Server

全面瞭解 n8n v1.88.0 的重磅更新 —— MCP Server

n8n MCP Server 配置

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该服务器的 README 中没有可解析的 MCP 配置块，请前往代码仓库查看安装说明。

代码仓库

n8n MCP Server 工具

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工具是从 README 中自动提取的。维护者可以在 ## Tools 标题下列出工具,即可填充这部分内容。

概览

What is n8n?

n8n is a workflow automation platform that now supports the Model Context Protocol (MCP) via Server-Sent Events (SSE). It allows users to create MCP servers and client nodes within workflows, integrate AI models like Gemini, and build custom automation tools like Calculator and OpenWeatherMap.

How to use n8n?

Install via npm install n8n -g, upgrade with npm install n8n@latest -g, then run n8n start and open http://localhost:5678 in a browser. Create an account and log in. In version 1.88.0, add MCP nodes: create a workflow with MCP Server Trigger, add tools (e.g., Calculator, OpenWeatherMap with an API key), then create another workflow with Chat Trigger → AI Agent → Chat Model (e.g., Gemini) → MCP Client Tool, pasting the SSE URL from the MCP server.

Key features of n8n

MCP support via Server-Sent Events (SSE)
Built-in Calculator tool for arithmetic
OpenWeatherMap integration (requires free API key)
Chat Trigger with AI Agent using Gemini models
Visual workflow builder with drag-and-drop nodes

Use cases of n8n

Build an MCP server that performs weather lookups and math calculations
Create an AI-powered chat assistant that can query external APIs
Automate workflows that combine AI reasoning with real-time data
Deploy a local automation tool with web-based interface

常见问题

What runtime does n8n require?

n8n runs on Node.js (installed via npm). The local server starts on port 5678.

How do I upgrade n8n to the latest version?

Run `npm install n8n@latest -g` followed by `n8n --version` to confirm.

What transport does the MCP integration use?

The MCP feature uses Server-Sent Events (SSE) for real‑time communication between the MCP server trigger and the MCP client tool.

Where do I get API keys for OpenWeatherMap and Gemini?

For OpenWeatherMap, register at openweathermap.org. For Gemini, obtain an API key from the Gemini platform. Both are entered in the respective node settings.

Is authentication required?

Yes, you must log in to the n8n web interface after creating an account. External services (OpenWeatherMap, Gemini) require their own API keys.

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