Microsoft Calendar MCP

An MCP server that enables agents to manage Microsoft 365 Outlook calendar events. It supports listing, creating, updating, and responding to events, checking free/busy status, and listing calendars. It utilizes a host-orchestrated Microsoft 365 OAuth surface for authentication.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by Mindstone

Vendor documentation

What you can do with it

List Outlook calendar events
Create new calendar events
Update existing events
Check free/busy status

Source and maintenance

Community listingRegistry 0.2.0

mcp-registry: io.github.mindstone/mcp-server-microsoft-calendar@0.2.0 Source repository

Maintenance checked: Oct 31, 2026, 10:27 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@mindstone/mcp-server-microsoft-calendar 0.2.0

npmnpx

@mindstone/mcp-server-microsoft-calendar package definition

{
  "version": "0.2.0",
  "transport": "stdio",
  "identifier": "@mindstone/mcp-server-microsoft-calendar",
  "runtimeHint": "npx",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "MS_CLIENT_ID",
      "format": "string",
      "isRequired": true,
      "description": "Microsoft Entra (Azure AD) application client ID"
    },
    {
      "name": "MS_CONFIG_DIR",
      "format": "filepath",
      "isRequired": true,
      "description": "Path to the per-user Microsoft config directory (credentials/, accounts.json)"
    },
    {
      "name": "MS_ACCOUNT_EMAIL",
      "format": "string",
      "description": "Account email when running in multi-account per-instance mode (falls back to the first account in accounts.json)"
    },
    {
      "name": "MS_MCP_PACKAGE_ID",
      "format": "string",
      "default": "Microsoft365Calendar",
      "description": "Logical package ID surfaced in error responses"
    },
    {
      "name": "MICROSOFT_REQUEST_TIMEOUT_MS",
      "format": "number",
      "default": "60000",
      "description": "Override the upstream Microsoft Graph request timeout in milliseconds (max 300000 = 5 min)"
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "microsoft-calendar-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mindstone/mcp-server-microsoft-calendar@0.2.0"
      ],
      "env": {
        "MS_CLIENT_ID": "<YOUR_MS_CLIENT_ID>",
        "MS_CONFIG_DIR": "<YOUR_MS_CONFIG_DIR>",
        "MS_ACCOUNT_EMAIL": "<YOUR_MS_ACCOUNT_EMAIL>",
        "MS_MCP_PACKAGE_ID": "<YOUR_MS_MCP_PACKAGE_ID>",
        "MICROSOFT_REQUEST_TIMEOUT_MS": "<YOUR_MICROSOFT_REQUEST_TIMEOUT_MS>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "microsoft-calendar-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mindstone/mcp-server-microsoft-calendar@0.2.0"
      ],
      "env": {
        "MS_CLIENT_ID": "<YOUR_MS_CLIENT_ID>",
        "MS_CONFIG_DIR": "<YOUR_MS_CONFIG_DIR>",
        "MS_ACCOUNT_EMAIL": "<YOUR_MS_ACCOUNT_EMAIL>",
        "MS_MCP_PACKAGE_ID": "<YOUR_MS_MCP_PACKAGE_ID>",
        "MICROSOFT_REQUEST_TIMEOUT_MS": "<YOUR_MICROSOFT_REQUEST_TIMEOUT_MS>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "microsoft-calendar-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@mindstone/mcp-server-microsoft-calendar@0.2.0"
      ],
      "env": {
        "MS_CLIENT_ID": "<YOUR_MS_CLIENT_ID>",
        "MS_CONFIG_DIR": "<YOUR_MS_CONFIG_DIR>",
        "MS_ACCOUNT_EMAIL": "<YOUR_MS_ACCOUNT_EMAIL>",
        "MS_MCP_PACKAGE_ID": "<YOUR_MS_MCP_PACKAGE_ID>",
        "MICROSOFT_REQUEST_TIMEOUT_MS": "<YOUR_MICROSOFT_REQUEST_TIMEOUT_MS>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "microsoft-calendar-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mindstone/mcp-server-microsoft-calendar@0.2.0"
      ],
      "env": {
        "MS_CLIENT_ID": "<YOUR_MS_CLIENT_ID>",
        "MS_CONFIG_DIR": "<YOUR_MS_CONFIG_DIR>",
        "MS_ACCOUNT_EMAIL": "<YOUR_MS_ACCOUNT_EMAIL>",
        "MS_MCP_PACKAGE_ID": "<YOUR_MS_MCP_PACKAGE_ID>",
        "MICROSOFT_REQUEST_TIMEOUT_MS": "<YOUR_MICROSOFT_REQUEST_TIMEOUT_MS>"
      }
    }
  }
}

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