Outlook Calendar MCP

Outlook Calendar MCP

Outlook Calendar MCP Server built using FastMCP and Microsoft Graph API. This MCP server allows AI agents to manage Outlook Calendar events through Microsoft Graph.

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README

Outlook Calendar MCP

Overview

Outlook Calendar MCP Server built using FastMCP and Microsoft Graph API.

This MCP server allows AI agents to manage Outlook Calendar events through Microsoft Graph.

Features

  • Create Calendar Event
  • Update Calendar Event
  • Delete Calendar Event
  • List Calendar Events
  • Get Calendar Schedule

Project Structure

outlook-calendar-mcp/
│
├── server.py
├── graph_client.py
├── config.py
├── .env
│
├── tools/
│   ├── create_event.py
│   ├── update_event.py
│   ├── delete_event.py
│   ├── list_events.py
│   └── get_schedule.py
│
├── requirements.txt
└── README.md

Authentication

This project uses Microsoft Entra ID Client Credentials Flow.

Required credentials:

  • Tenant ID
  • Client ID
  • Client Secret

Store them in:

TENANT_ID=
CLIENT_ID=
CLIENT_SECRET=

Installation

Create virtual environment:

python -m venv .venv

Activate:

.\.venv\Scripts\Activate.ps1

Install packages:

pip install -r requirements.txt

Run MCP Server

python server.py

Workflow

  1. MCP Tool receives request.
  2. Graph Client generates Microsoft access token.
  3. Tool calls Microsoft Graph API.
  4. Microsoft Graph updates Outlook Calendar.
  5. Response is returned to MCP Client.

APIs Used

Microsoft Graph API

Examples:

POST /users/{email}/events
GET /users/{email}/events
PATCH /users/{email}/events/{event_id}
DELETE /users/{email}/events/{event_id}

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