Outlook Mcp

Name: Outlook Mcp
Author: ryaker

kill-port · by ryaker

MCP server for Claude to access Outlook data via Microsoft Graph API

369 1.5M/wk 0 tools GitHub npm

1 open CVE

No license

Maintained

Last commit 50d ago

Works with most clients

Transport: stdio, sse

0 tools

Grade F

Edit this pageView history

Productivity Communication

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "m365-assistant": {
      "env": {
        "USE_TEST_MODE": "false",
        "OUTLOOK_CLIENT_ID": "your-client-id",
        "OUTLOOK_CLIENT_SECRET": "your-client-secret"
      },
      "args": [
        "/path/to/outlook-mcp/index.js"
      ],
      "command": "node"
    }
  }
}

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Read me

What Outlook Mcp does

A comprehensive MCP (Model Context Protocol) server that connects Claude with Microsoft 365 services through the Microsoft Graph API and Power Automate API.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'kill-port' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

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Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

58/100across 5 weighted dimensions

How we score →

0255075100

−42

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

1 open1 fixed

MAL-2025-191116info

Malicious code in kill-port (npm)

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (da8762d3a240cbf5a33e4b613b2ea601d5515824da362b82eed4b5095baa7b8c) The package kill-port was found to contain malicious code. ## Source: ghsa-malware (12e6ea3a28f8e792e2cac11bd7aa1651eed2f77b6468a8d9aa43567dc9e95bbd) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different comp

source →

CVE-2019-5414low · fixedCVSS 3

Command Injection in kill-port

Versions of `kill-port` prior to 1.3.2 are vulnerable to Command Injection. The package does not validate user input on the `kill` function. This may allow attackers to run arbitrary commands in the system if user input (such as the port number) is passed directly to the function. ## Recommendation Upgrade to version 1.3.2 or later.

Affected: >= 0Fixed in 1.3.2source →

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Frequently Asked Questions

Is Outlook Mcp safe to use?: Outlook Mcp has 1 known CVE tracked by MCPpedia. You can verify these on OSV.dev by searching for "kill-port". Review the Security section above for details before installing.
How do I install Outlook Mcp?: Outlook Mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What AI clients work with Outlook Mcp?: Outlook Mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse transport.
Is Outlook Mcp actively maintained?: Outlook Mcp is recently maintained — last commit was 50 days ago. It has 369 GitHub stars.

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Community

Discussion

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Has anyone used this with Cursor?How do you handle auth?Any alternatives?

{ "mcpServers": { "m365-assistant": { "env": { "USE_TEST_MODE": "false", "OUTLOOK_CLIENT_ID": "your-client-id", "OUTLOOK_CLIENT_SECRET": "your-client-secret" }, "args": [ "/path/to/outlook-mcp/index.js" ], "command": "node" } } }

Directory Structure

├── index.js # Main entry point ├── config.js # Configuration settings ├── auth/ # Authentication modules │ ├── index.js # Authentication exports │ ├── token-manager.js # Token storage and refresh (Graph + Flow) │ └── tools.js # Auth-related tools ├── calendar/ # Calendar functionality │ ├── index.js # Calendar exports │ ├── list.js # List events │ ├── create.js # Create event │ ├── delete.js # Delete event │ ├── cancel.js # Cancel event │ ├── accept.js # Accept event │ └── decline.js # Decline event ├── email/ # Email functionality │ ├── index.js # Email exports │ ├── list.js # List emails │ ├── search.js # Search emails │ ├── read.js # Read email │ ├── send.js # Send email │ └── mark-as-read.js # Mark email read/unread ├── folder/ # Folder functionality │ ├── index.js # Folder exports │ ├── list.js # List folders │ ├── create.js # Create folder │ └── move.js # Move emails ├── rules/ # Email rules functionality │ ├── index.js # Rules exports │ ├── list.js # List rules │ └── create.js # Create rule ├── onedrive/ # OneDrive functionality │ ├── index.js # OneDrive exports │ ├── list.js # List files/folders │ ├── search.js # Search files │ ├── download.js # Get download URL │ ├── upload.js # Simple upload (<4MB) │ ├── upload-large.js # Chunked upload (>4MB) │ ├── share.js # Create sharing link │ └── folder.js # Create/delete folders ├── power-automate/ # Power Automate functionality │ ├── index.js # Power Automate exports │ ├── flow-api.js # Flow API client │ ├── list-environments.js # List environments │ ├── list-flows.js # List flows │ ├── run-flow.js # Trigger flow │ ├── list-runs.js # Run history │ └── toggle-flow.js # Enable/disable flow └── utils/ # Utility functions ├── graph-api.js # Microsoft Graph API helper ├── odata-helpers.js # OData query building └── mock-data.js # Test mode data

Features

Authentication: OAuth 2.0 authentication with Microsoft Graph API (+ Flow API for Power Automate)

Email Management: List, search, read, send, and organize emails

Calendar Management: List, create, accept, decline, and delete calendar events

OneDrive Integration: List, search, upload, download, and share files

Power Automate: List environments/flows, trigger flows, view run history

Modular Structure: Clean separation of concerns for maintainability

Test Mode: Simulated responses for testing without real API calls

Available Tools

Outlook (Email & Calendar)

Tool	Description
`list-emails`	List recent emails from inbox
`search-emails`	Search emails with filters
`read-email`	Read email content
`send-email`	Send a new email
`mark-as-read`	Mark email as read/unread
`list-events`	List calendar events
`create-event`	Create calendar event

Tool

Description

list-emails

List recent emails from inbox

search-emails

Search emails with filters

read-email

Read email content

send-email

Send a new email

mark-as-read

Mark email as read/unread

list-events

List calendar events

create-event

Create calendar event

Frequently Asked Questions

Is Outlook Mcp safe to use?

Outlook Mcp has 1 known CVE tracked by MCPpedia. You can verify these on OSV.dev by searching for "kill-port". Review the Security section above for details before installing.

How do I install Outlook Mcp?

Outlook Mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What AI clients work with Outlook Mcp?

Outlook Mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse transport.

Is Outlook Mcp actively maintained?

Outlook Mcp is recently maintained — last commit was 50 days ago. It has 369 GitHub stars.

Directory Structure

Features

Authentication: OAuth 2.0 authentication with Microsoft Graph API (+ Flow API for Power Automate)

Email Management: List, search, read, send, and organize emails

Calendar Management: List, create, accept, decline, and delete calendar events

OneDrive Integration: List, search, upload, download, and share files

Power Automate: List environments/flows, trigger flows, view run history

Modular Structure: Clean separation of concerns for maintainability

Test Mode: Simulated responses for testing without real API calls

Available Tools

Outlook (Email & Calendar)

Tool	Description
`list-emails`	List recent emails from inbox
`search-emails`	Search emails with filters
`read-email`	Read email content
`send-email`	Send a new email
`mark-as-read`	Mark email as read/unread
`list-events`	List calendar events
`create-event`	Create calendar event

Tool

Description

list-emails

List recent emails from inbox

search-emails

Search emails with filters

read-email

Read email content

send-email

Send a new email

mark-as-read

Mark email as read/unread

list-events

List calendar events

create-event

Create calendar event

Outlook Mcp

Install in your client