Multi Calendar MCP Server

by lumman-labco.lumman/calendarv1.2.0

Outlook.com, Microsoft 365, Google calendars: free time, events, invitations, booking pages, polls.

0remoteofficial registry

context tax

pending

security

pending

cold start

hosted

freshness

pending

Our reading of Multi Calendar, from the data

Multi Calendar is a email MCP server from lumman-lab, listed in the official MCP Registry.

We haven't measured its tool list yet, so its token cost is unknown.

With 0 GitHub stars it ranks #267 of 932 email servers we index.

It runs as a hosted endpoint, so there is nothing to install.

Install Multi Calendar MCP server

claude mcp add --transport http multi-calendar https://calendar.lumman.co/mcp

{
  "mcpServers": {
    "multi-calendar": {
      "url": "https://calendar.lumman.co/mcp"
    }
  }
}

{
  "mcpServers": {
    "multi-calendar": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://calendar.lumman.co/mcp"
      ]
    }
  }
}

Or add it as a custom connector under Settings → Connectors. The config above bridges via mcp-remote.

{
  "servers": {
    "multi-calendar": {
      "type": "http",
      "url": "https://calendar.lumman.co/mcp"
    }
  }
}

{
  "mcpServers": {
    "multi-calendar": {
      "serverUrl": "https://calendar.lumman.co/mcp"
    }
  }
}

Remote endpoints

streamable-httphttps://calendar.lumman.co/mcp

Freshness

Not enough public signals yet to judge maintenance.

Last commit (default branch)
2026-10-18 · today · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-10-18 · today · official registry · v1.2.0

How it compares in Email

Against the most-starred email servers we index. Token cost is per model turn, measured from each server's live tool list.

Server	Stars	Tools	Tokens / turn	Freshness	Runs
Multi Calendar (this)	0	—	not measured	—	hosted
Inbox Zero	12,649	—	not measured	Active	hosted
Useplunk	5,524	—	not measured	—	local
Google Workspace	3,370	—	not measured	Active	—
OpenOSINT	1,776	—	not measured	Active	local
emailmd	1,382	3	954	Active	local + hosted

All email MCP servers

FAQ

›How do I install the Multi Calendar MCP server in Claude Code?

Run: claude mcp add --transport http multi-calendar https://calendar.lumman.co/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Multi Calendar require an API key?

No required environment variables are declared in its published metadata.

›Can I use Multi Calendar as a remote (hosted) MCP server?

Yes. It is a hosted MCP server; connect to its URL with any client that supports remote MCP.

›Is Multi Calendar in the official MCP registry?

Yes, as co.lumman/calendar.

Sources and method

Official MCP Registry entry: updated 2026-10-18
GitHub repository: fetched 2026-10-19
Last checked against all sources: 2026-10-19

The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.