No. This is a community-maintained server (cloud.ru). It is actively maintained, but review the source and use a scoped bot token before running it against production.

Does it support remote/OAuth?

It runs locally over stdio via uvx or pip, and the official Docker image can also run in HTTP mode. Authentication is a Mattermost bot or personal access token, not OAuth.

What are the Entry+ bookmark tools?

The five channel-bookmark tools (list, create, update, delete, and reorder) are part of the project's Entry+ edition; the core 33 channel, message, thread, user, team, and file tools are available in the base server.

Mattermost MCP server

Communitycloud.ru (community)30Config last verified Jun 1, 2026

A maintained MCP server for Mattermost that lets agents work with channels, messages, threads, reactions, users, teams, and files.

Mattermost MCP is an actively maintained community server that connects AI assistants like Claude and Cursor to a self-hosted Mattermost workspace. Its tool set spans the things a team chat agent actually needs: listing public and personal channels, creating and joining channels, opening direct channels, posting and editing messages, searching messages and users, working with threads and reactions, pinning messages, managing teams, and uploading or linking files. An Entry+ edition adds channel bookmark tools. That breadth makes it a fit for ops bots, incident-summary agents, and assistants that triage or post into the right channel.

The server is a Python project and the easiest install is uvx mcp-server-mattermost (or pip install mcp-server-mattermost). It also ships an official Docker image that runs over stdio or in HTTP mode. Authenticate with MATTERMOST_URL and a bot or personal MATTERMOST_TOKEN. Because it is community-built rather than published by Mattermost, review the source and use a scoped bot token before pointing it at a production workspace.

Quick install

Copy-paste configs are provided for all 8 supported clients. Pick your client below.

Add to ~/.claude.json

~/.claude.json

json

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

Or via CLI

bash

claude mcp add mattermost -- uvx mcp-server-mattermost

Step-by-step guides

Available tools

Tool	Description
list_public_channels	List public channels on the server.
list_my_channels	List channels the authenticated user belongs to.
get_channel	Get a channel by ID.
get_channel_by_name	Get a channel by team and channel name.
create_channel	Create a new channel.
join_channel	Join a channel.
leave_channel	Leave a channel.
mark_channel_viewed	Mark a channel as viewed (clears unread state).
get_channel_members	List members of a channel.
add_user_to_channel	Add a user to a channel.
create_direct_channel	Create or open a direct-message channel with a user.
post_message	Post a message to a channel.
get_channel_messages	Get recent messages from a channel.
search_messages	Search messages by query.
update_message	Edit an existing message.
delete_message	Delete a message.
add_reaction	Add an emoji reaction to a message.
remove_reaction	Remove an emoji reaction from a message.
get_reactions	List reactions on a message.
pin_message	Pin a message in a channel.
unpin_message	Unpin a message in a channel.
get_thread	Get a message thread and its replies.
get_me	Get the authenticated user's profile.
get_user	Get a user by ID.
get_user_by_username	Get a user by username.
search_users	Search users by query.
get_user_status	Get a user's online status.
list_teams	List teams on the server.
get_team	Get a team by ID.
get_team_members	List members of a team.
upload_file	Upload a file to a channel.
get_file_info	Get metadata for a file.
get_file_link	Get a public link for a file.
list_bookmarks	List channel bookmarks (Entry+ edition).
create_bookmark	Create a channel bookmark (Entry+ edition).
update_bookmark	Update a channel bookmark (Entry+ edition).
delete_bookmark	Delete a channel bookmark (Entry+ edition).
update_bookmark_sort_order	Reorder channel bookmarks (Entry+ edition).

Required configuration

MATTERMOST_URLRequired
Your Mattermost server URL.
MATTERMOST_TOKENRequired
Bot or personal access token for authentication.
MCP_TRANSPORTOptional
Optional. Set to 'http' to run the server in HTTP mode (Docker).

What you can do with it

Post incident summaries to the right channel

An ops agent searches for the relevant channel, posts a structured incident summary, and pins it so the on-call team sees it immediately.

Triage and respond in threads

The agent reads a thread, reacts to acknowledge, and posts a reply or escalates by adding the right user to the channel.

FAQ

Is it official?: No. This is a community-maintained server (cloud.ru). It is actively maintained, but review the source and use a scoped bot token before running it against production.
Does it support remote/OAuth?: It runs locally over stdio via uvx or pip, and the official Docker image can also run in HTTP mode. Authentication is a Mattermost bot or personal access token, not OAuth.
What are the Entry+ bookmark tools?: The five channel-bookmark tools (list, create, update, delete, and reorder) are part of the project's Entry+ edition; the core 33 channel, message, thread, user, team, and file tools are available in the base server.

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