ox-mcp

io.github.Rheopyrin/ox-mcp · v0.1.4

MCP server for Open-Xchange: email (IMAP/SMTP), Sieve filters, CalDAV calendar, CardDAV contacts

Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add ox-mcp -e OX_MCP_MAIL_SERVER=<OX_MCP_MAIL_SERVER> -e OX_MCP_MAIL_USER=<OX_MCP_MAIL_USER> -e OX_MCP_MAIL_APP_PASSWORD=<OX_MCP_MAIL_APP_PASSWORD> -e OX_MCP_CALDAV_SERVER=<OX_MCP_CALDAV_SERVER> -e OX_MCP_CALDAV_USER=<OX_MCP_CALDAV_USER> -e OX_MCP_CALDAV_APP_PASSWORD=<OX_MCP_CALDAV_APP_PASSWORD> -e OX_MCP_CARDDAV_SERVER=<OX_MCP_CARDDAV_SERVER> -e OX_MCP_CARDDAV_USER=<OX_MCP_CARDDAV_USER> -e OX_MCP_CARDDAV_APP_PASSWORD=<OX_MCP_CARDDAV_APP_PASSWORD> -- npx -y @rheopyrin/[email protected]

claude_desktop_config.json

{
  "mcpServers": {
    "ox-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rheopyrin/[email protected]"
      ],
      "env": {
        "OX_MCP_MAIL_SERVER": "<OX_MCP_MAIL_SERVER>",
        "OX_MCP_MAIL_USER": "<OX_MCP_MAIL_USER>",
        "OX_MCP_MAIL_APP_PASSWORD": "<OX_MCP_MAIL_APP_PASSWORD>",
        "OX_MCP_CALDAV_SERVER": "<OX_MCP_CALDAV_SERVER>",
        "OX_MCP_CALDAV_USER": "<OX_MCP_CALDAV_USER>",
        "OX_MCP_CALDAV_APP_PASSWORD": "<OX_MCP_CALDAV_APP_PASSWORD>",
        "OX_MCP_CARDDAV_SERVER": "<OX_MCP_CARDDAV_SERVER>",
        "OX_MCP_CARDDAV_USER": "<OX_MCP_CARDDAV_USER>",
        "OX_MCP_CARDDAV_APP_PASSWORD": "<OX_MCP_CARDDAV_APP_PASSWORD>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "ox-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rheopyrin/[email protected]"
      ],
      "env": {
        "OX_MCP_MAIL_SERVER": "<OX_MCP_MAIL_SERVER>",
        "OX_MCP_MAIL_USER": "<OX_MCP_MAIL_USER>",
        "OX_MCP_MAIL_APP_PASSWORD": "<OX_MCP_MAIL_APP_PASSWORD>",
        "OX_MCP_CALDAV_SERVER": "<OX_MCP_CALDAV_SERVER>",
        "OX_MCP_CALDAV_USER": "<OX_MCP_CALDAV_USER>",
        "OX_MCP_CALDAV_APP_PASSWORD": "<OX_MCP_CALDAV_APP_PASSWORD>",
        "OX_MCP_CARDDAV_SERVER": "<OX_MCP_CARDDAV_SERVER>",
        "OX_MCP_CARDDAV_USER": "<OX_MCP_CARDDAV_USER>",
        "OX_MCP_CARDDAV_APP_PASSWORD": "<OX_MCP_CARDDAV_APP_PASSWORD>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "ox-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@rheopyrin/[email protected]"
      ],
      "env": {
        "OX_MCP_MAIL_SERVER": "<OX_MCP_MAIL_SERVER>",
        "OX_MCP_MAIL_USER": "<OX_MCP_MAIL_USER>",
        "OX_MCP_MAIL_APP_PASSWORD": "<OX_MCP_MAIL_APP_PASSWORD>",
        "OX_MCP_CALDAV_SERVER": "<OX_MCP_CALDAV_SERVER>",
        "OX_MCP_CALDAV_USER": "<OX_MCP_CALDAV_USER>",
        "OX_MCP_CALDAV_APP_PASSWORD": "<OX_MCP_CALDAV_APP_PASSWORD>",
        "OX_MCP_CARDDAV_SERVER": "<OX_MCP_CARDDAV_SERVER>",
        "OX_MCP_CARDDAV_USER": "<OX_MCP_CARDDAV_USER>",
        "OX_MCP_CARDDAV_APP_PASSWORD": "<OX_MCP_CARDDAV_APP_PASSWORD>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

Name	Description
`OX_MCP_MAIL_SERVER` Optional	IMAP/SMTP/ManageSieve host for the mail section (email_* tools).
`OX_MCP_MAIL_USER` Optional	Login user (mailbox address) for the mail section.
`OX_MCP_MAIL_APP_PASSWORD` Optional, secret	App password for the mail section (basic auth).
`OX_MCP_CALDAV_SERVER` Optional	CalDAV host for the calDav section (calendar_* tools).
`OX_MCP_CALDAV_USER` Optional	Login user for the calDav section.
`OX_MCP_CALDAV_APP_PASSWORD` Optional, secret	App password for the calDav section (servers may scope passwords per protocol).
`OX_MCP_CARDDAV_SERVER` Optional	CardDAV host for the cardDav section (contact_* tools).
`OX_MCP_CARDDAV_USER` Optional	Login user for the cardDav section.
`OX_MCP_CARDDAV_APP_PASSWORD` Optional, secret	App password for the cardDav section.

Details

Package	`@rheopyrin/[email protected]` (NPM, stdio)
First published	12 Oct 2026
Last updated	12 Oct 2026
Registry name	`io.github.Rheopyrin/ox-mcp`

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Live status

Local install

Installed and run on your own machine, so there is no public endpoint to check.

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