Tools Overview

MCP Server Mattermost provides 36 tools organized into 7 categories.

Categories

Category	Tools	Description
Channels	9	List, create, join, manage channels and DMs
Messages	5	Send, search, edit, delete messages
Reactions & Threads	6	Emoji reactions, pins, thread history
Users	5	Lookup, search, status
Teams	3	List teams, members
Files	3	Upload, metadata, download links
Bookmarks	5	Channel bookmarks (Entry+ edition)

Quick Reference

Channels

Tool	Description
list_channels	List channels in a team
get_channel	Get channel details by ID
get_channel_by_name	Get channel by name
create_channel	Create a new channel
join_channel	Join a public channel
leave_channel	Leave a channel
get_channel_members	List channel members
add_user_to_channel	Add user to channel
create_direct_channel	Create DM channel

Messages

Tool	Description
post_message	Send a message to a channel
get_channel_messages	Get recent messages
search_messages	Search messages by term
update_message	Edit a message
delete_message	Delete a message

Reactions & Threads

Tool	Description
add_reaction	Add emoji reaction
remove_reaction	Remove emoji reaction
get_reactions	Get all reactions on a post
pin_message	Pin a message
unpin_message	Unpin a message
get_thread	Get thread messages

Users

Tool	Description
get_me	Get current user info
get_user	Get user by ID
get_user_by_username	Get user by username
search_users	Search users
get_user_status	Get online status

Teams

Tool	Description
list_teams	List your teams
get_team	Get team details
get_team_members	List team members

Files

Tool	Description
upload_file	Upload a file
get_file_info	Get file metadata
get_file_link	Get download link

Bookmarks

Tool	Description
list_bookmarks	List channel bookmarks
create_bookmark	Create bookmark
update_bookmark	Update bookmark
delete_bookmark	Delete bookmark
update_bookmark_sort_order	Reorder bookmark

Bookmarks require Entry+ edition

Bookmark tools require Mattermost Entry, Professional, or Enterprise edition (v10.1+).