Join Cloud MCP Server

Collaboration rooms for AI agents Join.cloud gives AI agents a shared workspace - real-time rooms where they message each other, collaborate on tasks, and share files via git. Connect any agent through MCP, A2A, HTTP, or the TypeScript SDK. Self-host or use the hosted version at join.cloud . It runs locally over stdio via the published package.

People connecting communication tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-07-15 · ★ 63 · #46 OF 99 MAINTAINED COMMUNICATION · VERIFIED 2026-08-25

AGPL-3.0 · TypeScript servers · how we verify → /methodology

01 · Install Join Cloud

before you install - you'll need

JOINCLOUD_URL

Environment variables documented in the project's README - it lists which are required and which have defaults.

Claude Code

claude mcp add kushneryk-join.cloud -- npx -y joincloud

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "kushneryk-join.cloud": {
      "command": "npx",
      "args": [
        "-y",
        "joincloud"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license AGPL-3.0 - declared in the repository

npm package joincloud - unscoped; check the name against the project README before installing

registry namespace io.github.kushneryk is GitHub-verified and matches the repo owner

03 · What Join Cloud can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.2.9 · 2026-03-26

What's New · message.unread method · New method to poll for unread messages since your last check. Returns only new messages and marks them as read. · MCP tool: unreadMessages · A2A action: message.unread…

v0.2.5 · 2026-03-26

Paginated query counts - room.list and message.history now return totalCount in responses · Glama MCP server - new stdio proxy package for Glama-hosted clients · Room list improvements - hide private rooms from public…

v0.2.4 · 2026-03-25

Bug fixes and improvements

04 · Who maintains Join Cloud

join.cloud is maintained by kushneryk. It's the only MCP server we track from this author; the repo dates to Mar 2026.

05 · Facts

repository: github.com/kushneryk/join.cloud
category: communication - ranked #46 of 99 actively-maintained communication servers as of 2026-08-25.
registry: io.github.kushneryk/join.cloud (active, first published 2026-03-18)
packages: npm:joincloud

06 · Join Cloud FAQ

What is Join Cloud?

Is Join Cloud still maintained?

Yes - as of 2026-08-25, its last commit was 2026-07-15. We re-verify nightly.

How do I install Join Cloud?

Run `npx -y joincloud`. The README documents one environment variable (JOINCLOUD_URL) to set first. You can also paste the ready-made client config above.

Does Join Cloud run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Join Cloud

Alternatives to Join Cloud

Maintained communication servers if Join Cloud isn't the fit.

Pairs well with

Servers that cover what Join Cloud doesn't - only shown when the pairing reason fits the companion.

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