Mattermost

io.github.toffguy77/mattermost-mcp · v1.1.0

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

Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add mattermost-mcp -e MATTERMOST_URL=<MATTERMOST_URL> -e MATTERMOST_ACCESS_TOKEN=<MATTERMOST_ACCESS_TOKEN> -e MATTERMOST_ENABLE_WRITE=<MATTERMOST_ENABLE_WRITE> -e MATTERMOST_TOKEN=<MATTERMOST_TOKEN> -e MATTERMOST_CSRF=<MATTERMOST_CSRF> -- uvx mattermost-mcp-server==1.1.0

claude_desktop_config.json

{
  "mcpServers": {
    "mattermost-mcp": {
      "command": "uvx",
      "args": [
        "mattermost-mcp-server==1.1.0"
      ],
      "env": {
        "MATTERMOST_URL": "<MATTERMOST_URL>",
        "MATTERMOST_ACCESS_TOKEN": "<MATTERMOST_ACCESS_TOKEN>",
        "MATTERMOST_ENABLE_WRITE": "<MATTERMOST_ENABLE_WRITE>",
        "MATTERMOST_TOKEN": "<MATTERMOST_TOKEN>",
        "MATTERMOST_CSRF": "<MATTERMOST_CSRF>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "mattermost-mcp": {
      "command": "uvx",
      "args": [
        "mattermost-mcp-server==1.1.0"
      ],
      "env": {
        "MATTERMOST_URL": "<MATTERMOST_URL>",
        "MATTERMOST_ACCESS_TOKEN": "<MATTERMOST_ACCESS_TOKEN>",
        "MATTERMOST_ENABLE_WRITE": "<MATTERMOST_ENABLE_WRITE>",
        "MATTERMOST_TOKEN": "<MATTERMOST_TOKEN>",
        "MATTERMOST_CSRF": "<MATTERMOST_CSRF>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "mattermost-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mattermost-mcp-server==1.1.0"
      ],
      "env": {
        "MATTERMOST_URL": "<MATTERMOST_URL>",
        "MATTERMOST_ACCESS_TOKEN": "<MATTERMOST_ACCESS_TOKEN>",
        "MATTERMOST_ENABLE_WRITE": "<MATTERMOST_ENABLE_WRITE>",
        "MATTERMOST_TOKEN": "<MATTERMOST_TOKEN>",
        "MATTERMOST_CSRF": "<MATTERMOST_CSRF>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

Name	Description
`MATTERMOST_URL` Required	Base URL of your Mattermost server, e.g. https://mattermost.example.com
`MATTERMOST_ACCESS_TOKEN` Optional, secret	Personal access token or bot token (Profile > Security > Personal Access Tokens)
`MATTERMOST_ENABLE_WRITE` Optional	Set to 1 to enable posting, replying, editing own posts and reactions (off by default)
`MATTERMOST_TOKEN` Optional, secret	Cookie mode: value of the MMAUTHTOKEN browser cookie (when personal access tokens are unavailable)
`MATTERMOST_CSRF` Optional, secret	Cookie mode: value of the MMCSRF browser cookie (required for write tools in cookie mode)

Details

Package	`[email protected]` (PYPI, stdio)
First published	2 Nov 2026
Last updated	2 Nov 2026
Registry name	`io.github.toffguy77/mattermost-mcp`

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Live status

Local install

Installed and run on your own machine, so there is no public endpoint to check.

Pair it with live search

Agents that use Mattermost often also need current facts. NestDaddy MCP gives your AI today's internet: web search, real-time breaking news and full page reading in one connector.

See NestDaddy MCP

For maintainers

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