ox-mcp runs on your own machine — the client starts it, so there is no endpoint to ping. 81 installs a week from npm. Last commit 12 Oct 2026.
MCP server for Open-Xchange: email (IMAP/SMTP), Sieve filters, CalDAV calendar, CardDAV contacts
Nothing serious here today
Today is the operative word: we check ox-mcp every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add ox-mcp -- npx -y @rheopyrin/ox-mcp{
"mcpServers": {
"ox-mcp": {
"command": "npx",
"args": [
"-y",
"@rheopyrin/ox-mcp"
]
}
}
}[mcp_servers.ox-mcp]
command = "npx"
args = ["-y", "@rheopyrin/ox-mcp"]{
"mcpServers": {
"ox-mcp": {
"command": "npx",
"args": [
"-y",
"@rheopyrin/ox-mcp"
]
}
}
}{
"servers": {
"ox-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@rheopyrin/ox-mcp"
]
}
}
}Optional settings from the registry entry, left out of the block above:
OX_MCP_MAIL_SERVER (IMAP/SMTP/ManageSieve host for the mail section (email_* tools)), OX_MCP_MAIL_USER (Login user (mailbox address) for the mail section), OX_MCP_MAIL_APP_PASSWORD (App password for the mail section (basic auth)), OX_MCP_CALDAV_SERVER (CalDAV host for the calDav section (calendar_* tools)), OX_MCP_CALDAV_USER (Login user for the calDav section), OX_MCP_CALDAV_APP_PASSWORD (App password for the calDav section (servers may scope passwords per protocol)), OX_MCP_CARDDAV_SERVER (CardDAV host for the cardDav section (contact_* tools)), OX_MCP_CARDDAV_USER (Login user for the cardDav section), OX_MCP_CARDDAV_APP_PASSWORD (App password for the cardDav section).
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ox-mcp — questions
Answers built from our own checks of this server.