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EWS Meeting MCP Server

@ap311036

Repository

Basic information

Category

Communication

Transports

stdio

Author

ap311036

Submitted by

敦翔 游

About EWS Meeting MCP Server

Safely schedule Outlook meetings on on-prem Exchange EWS with room-aware slot suggestions, local credentials, preview-confirmed writes, and audit-friendly lifecycle records.

#exchange#outlook#calendar#meeting-scheduling#ews#mcp#enterprise-security#on-prem

EWS Meeting MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "ews-meeting-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "ews-meeting-mcp@0.1.17"
      ],
      "env": {
        "EWS_ENDPOINT": "https://mail.company.com/EWS/Exchange.asmx",
        "EWS_EMAIL": "organizer@example.com",
        "EWS_USERNAME": "DOMAIN\\username",
        "EWS_PASSWORD": "<YOUR_EWS_PASSWORD>",
        "EWS_AUTH_TYPE": "NTLM",
        "EWS_TIMEZONE": "Asia/Taipei"
      }
    }
  }
}

EWS Meeting MCP Server tools

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Overview

What is EWS Meeting MCP?

EWS Meeting MCP is an MCP server for safely scheduling Outlook meetings on on-prem Microsoft Exchange via EWS. It is built for organizations that cannot use cloud-first Microsoft Graph integrations, keeping credentials local and requiring preview-confirmed writes for all calendar operations.

How to use EWS Meeting MCP?

Install with npx -y ews-meeting-mcp@0.1.17 and configure environment variables for your Exchange EWS endpoint, credentials, authentication type, and timezone.

Key features of EWS Meeting MCP

  • Resolve attendees and Exchange room mailboxes
  • Suggest available meeting slots before booking
  • Preview meeting changes before any write operation
  • Create, update, and cancel Outlook meetings through Exchange EWS
  • Keep Exchange credentials local with environment variables or macOS Keychain
  • Maintain audit-friendly lifecycle records for scheduling actions

Use cases of EWS Meeting MCP

  • Schedule meetings with room resources in an on-prem Exchange environment
  • Find and propose free time slots before sending invites
  • Review and confirm meeting changes before they are written
  • Manage meeting lifecycles while keeping credentials on-premises

Frequently asked questions

1

What is EWS Meeting MCP for?

It schedules Outlook meetings on on-prem Exchange EWS, designed for organizations that cannot use Microsoft Graph due to on-premises Exchange.

2

How are Exchange credentials handled?

Credentials are kept local using environment variables (e.g., EWS_PASSWORD) or stored in macOS Keychain.

3

Does the server preview changes before writing?

Yes, it requires a preview-confirmed step before creating, updating, or cancelling meetings.

4

What authentication method does it use?

It uses NTLM authentication, configurable via the EWS_AUTH_TYPE environment variable.

5

What transport does the server communicate over?

It communicates via HTTP/HTTPS to the Exchange EWS endpoint specified in EWS_ENDPOINT.

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