Build an MCP Server with Google Calendar and Custom Functions — n8n 工作流

复杂度 触发器22 个节点⚒️ Engineering👁 49,155 次查看作者:Solomon

概览

Learn how to build an MCP Server and Client in n8n with official nodes.

> ⚠ Requires n8n version 1.88.0 or higher.

In this example, we use Google Calendar and custom functions as two separate MCP Servers, demonstrating how to integrate both native and custom tools.

How it works

The AI Agent connects to two MCP Servers. Each MCP Trigger (Server) generates a URL exposing its tools. This URL is used by an MCP Client linked to the AI Agent.

Whenever you make changes to the tools, there’s no

使用的节点

HTTP RequestDebugHelperAI AgentOpenAI Chat ModelSimple MemoryCall n8n Workflow ToolMCP Client Tool

工作流预览

Activate the workflow to make the MCP Trigger
In order to make the MCP server available, you need to
Then copy the Production URL of the MCP Trigger and pas
MCP Clients
For every tool here you need to obtain he corresponding
Try these example requests with the AI Agent
My Functions MCP
1. Use your tools to convert this text to lower case: `
2. Use your tools to convert this text to upper case: `
The My Functions MCP calls this sub-workflow
A subworkflow is a separate workflow that can be called
Learn more about sub-workflows
Google Calendar tools require credentials
If you don't have your Google Credentials set up in n8n
If you
Need help?
For getting help with this workflow, please create a to
https://community.n8n.io/c/questions/
Why model 4o? 👆
After testing 4o-mini it had some difficulties handling
Depending on your prompt and tools, 4o-mini might be ab
Learn How to Build an MCP Server and Client
Author
!Solomon
Solomon
Freelance consultant from Brazil, specializing in au
💡 Want to learn advanced n8n skills and earn
‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎Check out Scrapes Academy
modeltooltooltooltooltooltooltooltoolmemorytool
AI Agent
S
SearchEvent
C
CreateEvent
U
UpdateEvent
D
DeleteEvent
G
Google Calendar MCP
W
When Executed by Another…
S
Switch
C
Convert Text to Upper Case
C
Convert Text to Lower Case
Convert Text
W
When chat message received
Simple Memory
Calendar MCP
My Functions
M
My Functions Server
Random user data
Generate random user data
R
Return only some fields
Joke Request
Random Jokes
OpenAI 4o
22 nodes18 edges

工作原理

  1. 1

    触发器

    工作流由 触发器 触发器启动。

  2. 2

    处理

    数据流经 22 个节点, connecting agent, chattrigger, debughelper。

  3. 3

    输出

    工作流完成自动化并将结果发送到配置的目标。

节点详情 (22)

HT

HTTP Request

httpRequest

#1
DE

DebugHelper

debugHelper

#2
AI

AI Agent

n8n-nodes-langchain.agent

#3
OP

OpenAI Chat Model

n8n-nodes-langchain.lmChatOpenAi

#4
SI

Simple Memory

n8n-nodes-langchain.memoryBufferWindow

#5
CA

Call n8n Workflow Tool

n8n-nodes-langchain.toolWorkflow

#6
MC

MCP Client Tool

n8n-nodes-langchain.mcpClientTool

#7

如何导入此工作流

  1. 1点击右侧 下载 JSON 按钮保存工作流文件。
  2. 2打开你的 n8n 实例,依次点击 工作流 → 新建 → 从文件导入
  3. 3选择下载的 build-an-mcp-server-with-google-calendar-and-custom-functions 文件并点击导入。
  4. 4为每个服务节点配置 凭证(API 密钥、OAuth 等)。
  5. 5点击 测试工作流 验证一切正常,然后激活它。

或直接在 n8n → 从 JSON 导入 中粘贴:

{ "name": "Build an MCP Server with Google Calendar and Custom Functions", "nodes": [...], ...}

集成

agentchattriggerdebughelperexecuteworkflowtriggergooglecalendartoolhttprequestlmchatopenaimcpclienttoolmcptriggermemorybufferwindowsetswitchtoolworkflow

获取此工作流

一键下载并导入

下载 JSON在 n8n.io 上查看
节点22
复杂度high
触发器trigger
查看次数49,155

创建者

Solomon

Solomon

@solomon

标签

agentchattriggerdebughelperexecuteworkflowtriggergooglecalendartoolhttprequestlmchatopenaimcpclienttoolmcptriggermemorybufferwindow

n8n 新手?

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