Microsoft MCP

Powerful MCP server for Microsoft Graph API - a complete AI assistant toolkit for Outlook, Calendar, OneDrive, and Contacts.

Features

• Email Management: Read, send, reply, manage attachments, organize folders
• Calendar Intelligence: Create, update, check availability, respond to invitations
• OneDrive Files: Upload, download, browse with pagination
• Contacts: Search and list contacts from your address book
• Multi-Account: Support for multiple Microsoft accounts (personal, work, school)
• Unified Search: Search across emails, files, events, and people

Quick Start with Claude Desktop

# Add Microsoft MCP server (replace with your Azure app ID)
claude mcp add microsoft-mcp -e MICROSOFT_MCP_CLIENT_ID=your-app-id-here -- uvx --from git+https://github.com/elyxlz/microsoft-mcp.git microsoft-mcp

# Start Claude Desktop
claude

Usage Examples

# Email examples
> read my latest emails with full content
> reply to the email from John saying "I'll review this today"
> send an email with attachment to alice@example.com

# Calendar examples  
> show my calendar for next week
> check if I'm free tomorrow at 2pm
> create a meeting with Bob next Monday at 10am

# File examples
> list files in my OneDrive
> upload this report to OneDrive
> search for "project proposal" across all my files

# Multi-account
> list all my Microsoft accounts
> send email from my work account

Available Tools

Email Tools

• `list_emails` - List emails with optional body content
• `get_email` - Get specific email with attachments
• `create_email_draft` - Create email draft with attachments support
• `send_email` - Send email immediately with CC/BCC and attachments
• `reply_to_email` - Reply maintaining thread context
• `reply_all_email` - Reply to all recipients in thread
• `update_email` - Mark emails as read/unread
• `move_email` - Move emails between folders
• `delete_email` - Delete emails
• `get_attachment` - Get email attachment content
• `search_emails` - Search emails by query

Calendar Tools

• `list_events` - List calendar events with details
• `get_event` - Get specific event details
• `create_event` - Create events with location and attendees
• `update_event` - Reschedule or modify events
• `delete_event` - Cancel events
• `respond_event` - Accept/decline/tentative response to invitations
• `check_availability` - Check free/busy times for scheduling
• `search_events` - Search calendar events

Contact Tools

• `list_contacts` - List all contacts
• `get_contact` - Get specific contact details
• `create_contact` - Create new contact
• `update_contact` - Update contact information
• `delete_contact` - Delete contact
• `search_contacts` - Search contacts by query

File Tools

• `list_files` - Browse OneDrive files and folders
• `get_file` - Download file content
• `create_file` - Upload files to OneDrive
• `update_file` - Update existing file content
• `delete_file` - Delete files or folders
• `search_files` - Search files in OneDrive

Utility Tools

• `unified_search` - Search across emails, events, and files
• `list_accounts` - Show authenticated Microsoft accounts
• `authenticate_account` - Start authentication for a new Microsoft account
• `complete_authentication` - Complete the authentication process after entering device code

Manual Setup

1. Azure App Registration

1. Go to Azure Portal → Microsoft Entra ID → App registrations

2. New registration → Name: `microsoft-mcp`

3. Supported account types: Personal + Work/School

4. Authentication → Allow public client flows: Yes

5. API permissions → Add these delegated permissions:

6. Copy Application ID

2. Installation

git clone https://github.com/elyxlz/microsoft-mcp.git
cd microsoft-mcp
uv sync

3. Authentication

# Set your Azure app ID
export MICROSOFT_MCP_CLIENT_ID="your-app-id-here"

# Run authentication script
uv run authenticate.py

# Follow the prompts to authenticate your Microsoft accounts

4. Claude Desktop Configuration

Add to your Claude Desktop configuration:

macOS: `~/Library/Application Support/Claude/claude_desktop_config.json`

Windows: `%APPDATA%\Claude\claude_desktop_config.json`

{
  "mcpServers": {
    "microsoft": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/elyxlz/microsoft-mcp.git", "microsoft-mcp"],
      "env": {
        "MICROSOFT_MCP_CLIENT_ID": "your-app-id-here"
      }
    }
  }
}

Or for local development:

{
  "mcpServers": {
    "microsoft": {
      "command": "uv",
      "args": ["--directory", "/path/to/microsoft-mcp", "run", "microsoft-mcp"],
      "env": {
        "MICROSOFT_MCP_CLIENT_ID": "your-app-id-here"
      }
    }
  }
}

Multi-Account Support

All tools require an `account_id` parameter as the first argument:

# List accounts to get IDs
accounts = list_accounts()
account_id = accounts[0]["account_id"]

# Use account for operations
send_email(account_id, "user@example.com", "Subject", "Body")
list_emails(account_id, limit=10, include_body=True)
create_event(account_id, "Meeting", "2024-01-15T10:00:00Z", "2024-01-15T11:00:00Z")

Development

# Run tests
uv run pytest tests/ -v

# Type checking
uv run pyright

# Format code
uvx ruff format .

# Lint
uvx ruff check --fix --unsafe-fixes .

Example: AI Assistant Scenarios

Smart Email Management

# Get account ID first
accounts = list_accounts()
account_id = accounts[0]["account_id"]

# List latest emails with full content
emails = list_emails(account_id, limit=10, include_body=True)

# Reply maintaining thread
reply_to_email(account_id, email_id, "Thanks for your message. I'll review and get back to you.")

# Forward with attachments
email = get_email(email_id, account_id)
attachments = [get_attachment(email_id, att["id"], account_id) for att in email["attachments"]]
send_email(account_id, "boss@company.com", f"FW: {email['subject']}", email["body"]["content"], attachments=attachments)

Intelligent Scheduling

# Get account ID first
accounts = list_accounts()
account_id = accounts[0]["account_id"]

# Check availability before scheduling
availability = check_availability(account_id, "2024-01-15T10:00:00Z", "2024-01-15T18:00:00Z", ["colleague@company.com"])

# Create meeting with details
create_event(
    account_id,
    "Project Review",
    "2024-01-15T14:00:00Z", 
    "2024-01-15T15:00:00Z",
    location="Conference Room A",
    body="Quarterly review of project progress",
    attendees=["colleague@company.com", "manager@company.com"]
)

Security Notes

• Tokens are cached locally in `~/.microsoft_mcp_token_cache.json`
• Use app-specific passwords if you have 2FA enabled
• Only request permissions your app actually needs
• Consider using a dedicated app registration for production

Troubleshooting

• Authentication fails: Check your CLIENT_ID is correct
• "Need admin approval": Use `MICROSOFT_MCP_TENANT_ID=consumers` for personal accounts
• Missing permissions: Ensure all required API permissions are granted in Azure
• Token errors: Delete `~/.microsoft_mcp_token_cache.json` and re-authenticate

License

MIT