Ms Contacts MCP server

        

Microsoft MCP

Model Context Protocol servers for Microsoft 365. Calendar · Contacts · OneDrive · Outlook · SharePoint — on the official @modelcontextprotocol/sdk, over stdio or Streamable HTTP.

Each server speaks the real MCP protocol and runs over either transport:

• stdio — for local MCP clients that launch the server as a subprocess (Claude Desktop, IDEs, the MCP Inspector).
• Streamable HTTP — for remote/hosted use, with the Microsoft Graph access token supplied per request via Authorization: Bearer.

Servers

All tools are thin wrappers over the Microsoft Graph v1.0 API.

Layout

microsoft-mcp/
├── apps/                       # one MCP server per Microsoft 365 product
│   ├── calendar/
│   ├── contacts/
│   ├── onedrive/
│   ├── outlook/
│   └── sharepoint/
│       └── src/
│           ├── tools.ts        # declarative tool definitions (schema + handler)
│           └── index.ts        # run({ name, version }, tools)
└── packages/                   # shared building blocks
    ├── core/                   # MCP server bootstrap + dual transport (stdio / HTTP)
    ├── graph/                  # Microsoft Graph HTTP client
    ├── validation/             # id / path / query sanitizers
    └── logger/                 # structured JSON logging (stderr-only — stdio-safe)

A server is just a list of tools handed to run():

// apps/calendar/src/index.ts
import { run } from "@microsoft-mcp/core";
import { tools } from "./tools.js";

void run({ name: "microsoft-calendar", version: "1.0.0", title: "Microsoft Calendar" }, tools);

// a single tool
defineTool({
  name: "get_event",
  description: "Get a single calendar event by ID.",
  inputSchema: { event_id: z.string().describe("Event ID") },
  confirmationPolicy: "never",
  handler: ({ graph }, { event_id }) => {
    validateId(event_id, "event_id");
    return graph.request("GET", `/me/events/${event_id}`);
  },
});

Shortened. The full README is on GitHub.