Outlook MCP by Xenoxilus is a free server tool designed for the mcp platform, built with JavaScript and running on Node.js. It integrates AI assistants and MCP clients with Microsoft Office 365 Outlook, enabling interaction with email, calendar, and SharePoint. This server tool enhances AI capabilities by providing direct access to essential business communication and document management functionalities. It supports various AI clients including Claude, ChatGPT, Claude Code, and mcp CLI, allowing for advanced automation and information retrieval within the Microsoft ecosystem.

What does Outlook MCP connect to?

Outlook MCP primarily connects to Microsoft Office 365 Outlook for email, calendar, and SharePoint services. It achieves this integration by utilizing the Microsoft Graph API, a crucial interface for interacting with Microsoft cloud services. This connection allows the MCP server to act as a bridge, enabling various AI clients to access and manage information across these vital Office 365 components. It functions as an MCP server, establishing a direct link to the Microsoft ecosystem.

Core features and tools

The server exposes several functionalities. These include Email Operations for reading, searching, sending, and replying to emails, along with attachment downloads. SharePoint Integration permits file access via links or IDs, and downloading shared files. Calendar Management enables viewing and managing events. Office Document Processing parses text from PDF, Word, PowerPoint, and Excel files. It also offers Receipt & Invoice Collection for discovery, saving as PDFs, and staging review drafts, plus Large File Support for files exceeding response limits.

Who is it for?

Outlook MCP targets AI assistants, Claude, ChatGPT, and other MCP clients seeking to interact with Microsoft Office 365 services. It provides a structured way for these systems to manage emails, calendars, and SharePoint files directly. The tool is suitable for environments where AI needs secure, programmatic access to corporate communication and document repositories. Skip this if your AI client does not require integration with Microsoft Office 365 Outlook, calendar, or SharePoint.

How to get started

Access is granted through a standard OAuth 2.0 authorization flow with PKCE, involving an Azure application registration to obtain a Client ID and Tenant ID. The first run initiates a browser-based Microsoft authentication, and tokens are encrypted and stored locally with automatic refresh, supporting stdio for CLI-based MCP clients.

Use cases

• Enabling AI assistants to interact directly with Microsoft Outlook email, allowing them to read, search, send, and reply to messages, and manage calendar events.
• Allowing AI clients to access and manage SharePoint files, including downloading shared documents and interacting with content via sharing links or direct IDs.
• Facilitating the parsing of Office documents like PDF, Word, PowerPoint, and Excel for text content, and supporting the collection and management of receipts and invoices.

Outlook MCP provides AI clients with a secure and automated bridge to Microsoft Office 365 services. It supports essential functions for email, calendar, and SharePoint, along with document processing and receipt management. Its OAuth 2.0 authentication model ensures secure access with automatic token refresh. The tool is a valuable asset for integrating AI into daily business operations involving Microsoft platforms. Start by configuring an Azure application to obtain the necessary Client ID and Tenant ID.