Run a personal assistant for calendar, Gmail and utilities with OpenAI and MCP
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 20 nodes and runs when an MCP client calls one of its tools (plus 3 other triggers). Along the way it connects AI Agent, OpenAI Chat Model, Simple Memory and MCP Client and 4 more.
How it runs
Trigger: When an MCP client calls one of its tools (plus 3 other triggers).
- Configuration (Edit Fields (Set)): sets 3 fields: openai_model, memory_context_window, system_prompt
- AI Assistant (MCP Client) (AI Agent): runs an AI agent, with model: OpenAI Chat Model; 3 tools (Gmail MCP Client, Calendar MCP Client, Utilities MCP Client); memory: Simple Memory
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (11)
- Chat Trigger
@n8n/n8n-nodes-langchain.chatTrigger - Edit Fields (Set)
n8n-nodes-base.set - AI Agent
@n8n/n8n-nodes-langchain.agent - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow - MCP Client Tool
@n8n/n8n-nodes-langchain.mcpClientTool - MCP Server Trigger
@n8n/n8n-nodes-langchain.mcpTrigger - Google Calendar Tool
n8n-nodes-base.googleCalendarTool - Gmail Tool
n8n-nodes-base.gmailTool - Http Request Tool
n8n-nodes-base.httpRequestTool - Calculator
@n8n/n8n-nodes-langchain.toolCalculator
From the author
Quick overview This workflow runs a chat-based OpenAI assistant in n8n that calls three MCP servers for Google Calendar management, Gmail search and draft replies, and utility tools for weather, currency conversion, and calculations. How it works 1. Receives…