Microsoft MCP Server
Enterprise Integration on Azure
A full-featured MCP server built entirely on the Microsoft stack, designed for enterprise environments where Azure and Microsoft 365 are the foundation. Exposes Teams channels, SharePoint document libraries, Outlook mail/calendar, OneDrive files, and Planner tasks as MCP resources and tools. AI agents can read documents from SharePoint, post to Teams channels, create calendar events, manage Planner boards, and search across the entire M365 tenant — all through the standardized MCP protocol. Built with .NET 8, hosted on Azure Functions for serverless scale, authenticated via Entra ID with granular Graph API permission scoping.
What Was Built
Teams Integration
read/post to channels, create meetings, manage team membership, search message history. Agents can participate in conversations and respond to mentions.
SharePoint & OneDrive
browse document libraries, read/write files, search content, manage permissions. Agents can retrieve documents by content or metadata query.
Outlook Integration
read/send email, manage calendar events, search mailboxes. Agents can draft responses, schedule meetings, and triage inboxes.
Planner & Tasks
create/update tasks, manage boards, assign work, track progress. Agents can orchestrate project workflows across teams.
Unified Search
cross-service search across Teams messages, SharePoint documents, Outlook mail, and OneDrive files using Microsoft Search API.
Admin & Governance
audit logging for all agent actions, rate limiting per tenant, permission scoping per MCP connection, tenant isolation for multi-tenant deployments.
How It's Built
.NET 8 with minimal APIs for MCP protocol handling
Azure Functions v4 (isolated worker) for serverless hosting
Microsoft Graph SDK v5 for M365 API integration
Entra ID with OAuth 2.0 on-behalf-of flow for delegated permissions
Cosmos DB for session state and audit log persistence
Azure Key Vault for secrets and certificate management
Application Insights for telemetry and request tracing
Bicep IaC for reproducible Azure deployments
Technical Stack
Results & Impact
30+ MCP tools covering the full Microsoft 365 surface area
Enterprise-ready with audit logging, rate limiting, and tenant isolation
Serverless deployment scales to zero — no idle compute costs
Enables AI agents to operate natively within Microsoft-centric organizations