Ms 365 (Microsoft 365 MCP Server) is a Model Context Protocol (MCP) integration for accessing Microsoft 365 and Office services via the Microsoft Graph API. This server facilitates authentication, fine-grained service/tool access, and supports both JSON and an efficient experimental 'TOON' output format designed for large language models. It is suitable for developers and organizations seeking robust, programmatic access to personal and organizational Microsoft 365 features within applications such as Claude Desktop and Claude Code CLI.