What is the key difference between Email MCP and Ox MCP?

Email MCP belongs to the Communication category with local stdio execution, while Ox MCP belongs to the Communication category with local stdio execution.

How do I install Email MCP or Ox MCP in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Email MCP and Ox MCP free or paid?

Email MCP operates under a Free / Open Source model (other). Ox MCP operates under a Free / Open Source model (API Key required).

Which MCP server has more tools and community activity?

Email MCP lists 31 tools with 4 views and 19 GitHub stars. Ox MCP lists 27 tools with 3 views and 0 GitHub stars.

Can I use both Email MCP and Ox MCP together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Email MCP vs Ox MCP

In-depth architectural comparison of the Email MCP and Ox MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Email MCP

Communication · Local stdio

Quality: 67/100 (Great) | Auth: other

Ox MCP

Communication · Local stdio

Quality: 57/100 (Good) | Auth: API Key required

Verdict Summary: Choose Email MCP if you need specialized Communication tools running via a local process. Choose Ox MCP if your workspace requires Communication integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Email MCP when:

You need dedicated capabilities in the Communication domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: other (Free / Open Source).
Primary tools included: email_list_accounts, email_add_account, email_remove_account.

Explore Email MCP Details

Choose Ox MCP when:

You need dedicated capabilities in the Communication domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Free / Open Source).
You have access to required keys: OX_MCP_MAIL_SERVER, OX_MCP_MAIL_USER, OX_MCP_MAIL_APP_PASSWORD, OX_MCP_CALDAV_SERVER, OX_MCP_CALDAV_USER, OX_MCP_CALDAV_APP_PASSWORD.
Primary tools included: list_servers, server, email_search.

Feature & Specification Comparison

Specification	Email MCP marlinjai Communication	Ox MCP Rheopyrin Communication
Summary	Unified MCP server for email across Gmail (REST API), Outlook (Microsoft Graph), iCloud, and generic IMAP/SMTP. 24 tools for search, send, organize, and batch-manage emails with built-in OAuth2 and encrypted credential storage.	Email (IMAP/SMTP), mail filters (Sieve), calendar (CalDAV), contacts (CardDAV), and free/busy scheduling for Open-Xchange and standards-based mail platforms. Published on the official MCP Registry.
Category & Scope

Tools & Capabilities Breakdown

Email MCP Tools (31)

email_list_accounts

List all configured email accounts and their connection status

email_add_account

Add a new IMAP or iCloud email account (Gmail and Outlook require the setup wizard for OAuth)

email_remove_account

Remove an email account

email_test_account

Test an email account connection

email_list_folders

List all email folders for an account

email_search

Search emails with filters. By default returns compact results without full body content to save context. Set returnBody=true to include full email bodies.

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Email MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "marlinjai-email-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@marlinjai/email-mcp"
      ]
    }
  }
}

Ox MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "rheopyrin-ox-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rheopyrin/ox-mcp"
      ],
      "env": {
        "OX_MCP_MAIL_SERVER": "YOUR_OX_MCP_MAIL_SERVER_HERE",
        "OX_MCP_MAIL_USER": "YOUR_OX_MCP_MAIL_USER_HERE",
        "OX_MCP_MAIL_APP_PASSWORD": "YOUR_OX_MCP_MAIL_APP_PASSWORD_HERE",
        "OX_MCP_CALDAV_SERVER": "YOUR_OX_MCP_CALDAV_SERVER_HERE",
        "OX_MCP_CALDAV_USER": "YOUR_OX_MCP_CALDAV_USER_HERE",
        "OX_MCP_CALDAV_APP_PASSWORD": "YOUR_OX_MCP_CALDAV_APP_PASSWORD_HERE"
      }
    }
  }
}

Frequently Asked Questions

Email MCP is categorized under Communication and uses a local stdio subprocess. In contrast, Ox MCP belongs to Communication using local stdio subprocess. Select Email MCP when you need capabilities focused on communication and Ox MCP when you require tools for communication.

More alternatives to Email MCP More alternatives to Ox MCP Communication category hub