This lean MCP server provides direct Microsoft Graph API access with multi-tenant account management, designed to minimize context bloat while enabling comprehensive Microsoft 365 integration.

Core Capabilities:

• Multi-tenant authentication - Log in to multiple Microsoft 365 accounts simultaneously using device code flow, ideal for headless/SSH environments

• Universal Graph API access - Execute any Graph API request through a single graph-request tool supporting all HTTP methods (GET, POST, PUT, PATCH, DELETE), custom headers, and request bodies

• Cross-tenant querying - Target specific accounts via accountId parameter to query different tenants in the same conversation without switching

• Full Microsoft 365 coverage - Access all services including Outlook, Calendar, OneDrive, Users, Groups, Teams, and SharePoint

• Advanced OData queries - Use $select, $filter, $top, $orderby, $expand, $count, and $search for precise data retrieval

• API version control - Choose between stable (v1.0) and preview (beta) endpoints

• Account lifecycle management - List, select, verify status, and remove cached accounts

• Context-efficient design - Only 7 tools (~1KB context) replace 30-40 specialized tools (~12KB), reducing AI model overhead

• PnP CLI complement - Works alongside PnP CLI for specialized SharePoint, Teams, and Power Platform operations

1. Click on "Install Server".

2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.

3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@ForIT Microsoft Graph show my upcoming calendar events for this week"

That's it! The server will respond to your query, and you can continue using it as needed.

Here is a step-by-step guide with screenshots.