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ox-mcp

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

Connector by Rheopyrin · GitHub account verified by the MCP Registry

IndexedMITLocal (stdio)★ 1
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Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/rheopyrin-ox-mcp

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

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

Reviews

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools
6 read · 15 write · 3 delete
Secrets
3 (API keys, tokens or passwords)
Install scripts
Not scanned yet
Runs as
Node.js package

Tools by what they do 24

Read from the source code; the running server may list different tools.

Read 6 · Look things up without changing anything.

  • calendar_free_busy
  • calendar_list
  • calendar_list_events
  • contact_find
  • contact_list
  • list_servers

Write 15 · Create, change, send or run things.

  • calendar_create_event
  • calendar_update_event
  • contact_create
  • email_create_folder
  • email_filter_create
  • email_filter_list
  • email_filter_update
  • email_flag
  • email_list
  • email_list_folders
  • email_move
  • email_read
Show 3 more tools
  • email_save_draft
  • email_search
  • email_send

Delete 3 · Delete, drop, revoke or wipe things.

  • calendar_delete_event
  • email_delete
  • email_delete_folder

Secrets and settings it asks for

Secrets: values you paste in that let it act as you.

  • OX_MCP_CALDAV_APP_PASSWORD
  • OX_MCP_CARDDAV_APP_PASSWORD
  • OX_MCP_MAIL_APP_PASSWORD

Other settings (environment variables or headers).

  • OX_MCP_CALDAV_SERVER
  • OX_MCP_CALDAV_USER
  • OX_MCP_CARDDAV_SERVER
  • OX_MCP_CARDDAV_USER
  • OX_MCP_MAIL_SERVER
  • OX_MCP_MAIL_USER

Tools (24)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • calendar_create_eventCreate calendar event

    Create a calendar event (VEVENT) in a calendar.

  • calendar_delete_eventDelete calendar event

    Delete a calendar event by its object URL.

  • calendar_free_busyGet free/busy

    Query attendees' availability (busy/free windows only) via the CalDAV scheduling outbox. No calendar sharing required.

  • calendar_listList calendars

    List CalDAV calendars (own and any shared with the account).

  • calendar_list_eventsList calendar events

    List events in a calendar within a time range.

  • calendar_update_eventUpdate calendar event

    Replace an existing calendar event by its object URL.

  • contact_createCreate contact

    Create a CardDAV contact (vCard) in an address book.

  • contact_findFind contacts

    Search CardDAV contacts by a case-insensitive substring (server-side where supported). Useful for resolving a name to an email address, e.g. before calendar_free_busy.

  • contact_listList contacts

    List all CardDAV contacts. Reads all address books unless one is given. To search, use contact_find instead.

  • email_create_folderCreate mail folder

    Create a new IMAP folder. Use the delimiter of the account (usually "/") for nesting, e.g. "Projects/Acme".

  • email_deleteDelete email

    Delete an email by UID (moves to Trash or expunges per server policy).

  • email_delete_folderDelete mail folder

    Delete an IMAP folder. The folder and its messages are removed — this cannot be undone.

  • email_filter_createCreate mail filter

    Create a server-side mail filter (sieve). Note: ox-mcp manages its own sieve script and activates it.

  • email_filter_listList mail filters

    List server-side mail filters managed by ox-mcp (sieve).

  • email_filter_updateUpdate mail filter

    Replace an existing ox-mcp mail filter by id (see email_filter_list).

Show 9 more tools
  • email_flagFlag email

    Flag or unflag (star/unstar) an email.

  • email_listList emails

    List the most recent emails in a folder (newest first).

  • email_list_foldersList mail folders

    List IMAP mailboxes/folders for an account.

  • email_moveMove email

    Move an email by UID to another folder.

  • email_readRead email

    Read a single email (headers + body) by UID.

  • email_save_draftSave draft

    Compose a message and save it to the Drafts folder (does not send).

  • email_searchSearch emails

    Search emails by from/to/subject/body/text, date range, and flags. Searches ALL folders unless a folder is given. Note: on the ox-api transport, `body`/`text` match only the subject and addresses of recent messages (not full message bodies); use the imap transport for true full-text search.

  • email_sendSend email

    Send an email via SMTP.

  • list_serversList servers

    List configured accounts/servers and their mail/calDav/cardDav sections (hosts, users, auth types). Never returns secrets.

Signals

Stars
1
Forks
1
Open issues
1
Last commit
Oct 12, 2026 (17 days ago)
Last release
Oct 12, 2026 (17 days ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name
io.github.Rheopyrin/ox-mcp
Version
0.1.4
Auth
API key
Packages
npm @rheopyrin/ox-mcp
License
MIT
Repository
github.com/Rheopyrin/ox-mcp
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
Official MCP Registrygithub-graphql

More from Rheopyrin

Cite this page

ox-mcp. Agent Mart. https://agentmart.dev/connectors/rheopyrin-ox-mcp (last updated 2026-10-24)