Mattermost

io.github.toffguy77/mattermost-mcp

Mattermost: read unreads, mentions, channels and threads; opt-in posting, edits, reactions

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Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "mattermost-mcp": {
      "command": "uvx",
      "args": [
        "mattermost-mcp-server"
      ],
      "env": {
        "MATTERMOST_URL": "<your MATTERMOST_URL>",
        "MATTERMOST_ACCESS_TOKEN": "<your MATTERMOST_ACCESS_TOKEN>",
        "MATTERMOST_TOKEN": "<your MATTERMOST_TOKEN>",
        "MATTERMOST_CSRF": "<your MATTERMOST_CSRF>"
      }
    }
  }
}
Environment variables
  • MATTERMOST_URLrequiredBase URL of your Mattermost server, e.g. https://mattermost.example.com
  • MATTERMOST_ACCESS_TOKENsecretPersonal access token or bot token (Profile > Security > Personal Access Tokens)
  • MATTERMOST_TOKENsecretCookie mode: value of the MMAUTHTOKEN browser cookie (when personal access tokens are unavailable)
  • MATTERMOST_CSRFsecretCookie mode: value of the MMCSRF browser cookie (required for write tools in cookie mode)

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
1.1.0
Registry
active
Published
11/2/2026

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Add the badge to your site

Show visitors that Mattermost is listed here — it’s also the link we check for a free listing.

Mattermost — listed on Serverdex

HTML — for your website

<a href="https://serverdex.io/server/io-github-toffguy77-mattermost-mcp?utm_source=badge"><img src="https://serverdex.io/brand/badge.svg" alt="Mattermost — listed on Serverdex" width="123" height="40" loading="lazy"></a>

Recommended. A dofollow link from your own domain is the one that counts for search engines, and it's the link we check for a free listing.

Markdown — for your README

[![Mattermost — listed on Serverdex](https://serverdex.io/brand/badge.svg)](https://serverdex.io/server/io-github-toffguy77-mattermost-mcp?utm_source=badge)

Nice for visibility, but GitHub marks README links nofollow, so it doesn't pass authority. Use the HTML badge on your site as well.