Mattermost is an open-source, self-hostable online chat service with file sharing, search, and integrations. It is designed as an internal chat for organisations and companies.
Connects Mattermost workspaces to sync messages, which are distilled into an auto-maintained wiki and graph store for natural language querying and browsing.
Turns team chat (Slack, Discord, MS Teams, Mattermost) into a living knowledge base - a typed knowledge graph plus auto-generated wiki - exposed to AI agents through a 28-tool MCP server with semantic search, expert finding, and decision tracing.
28
443
Apache 2.0
Why this server?
Enables read-only access to Mattermost, allowing AI agents to search messages, view channel and DM history, read threads and pinned posts, and list teams and channels using the user's own account.
Enables AI coding tools to search and read a user's Mattermost channels and DMs using their own account, allowing AI to answer questions about team conversations with read-only access.
10
MIT
Why this server?
Provides integration with Mattermost (via Time Messenger) for managing messages, threads, channels, teams, and users in a Mattermost-based corporate messenger.
MCP server for T-Bank's Time Messenger (Mattermost-based) that enables AI assistants to read and send messages, manage threads, search channels and users, and track unread messages.
22
18
5
MIT
Why this server?
Provides tools to read, search, and post messages in Mattermost, manage channels, reactions, threads, files, users, teams, and bookmarks.
Lets AI assistants read, search, and post messages in Mattermost channels, manage threads, reactions, files, and users with 38 tools.
38
44
MIT
Why this server?
Provides tools for managing Mattermost Boards (Focalboard), including listing teams, boards, cards, views, and members, as well as creating, updating, and deleting cards.
MCP server for Mattermost Boards (Focalboard) that enables natural language management of teams, boards, and cards, including CRUD operations.
11
15
MIT
Why this server?
Provides tools for interacting with Mattermost workspaces, including channel management, posting messages, replying to threads, adding reactions, retrieving channel history and thread replies, user management, and topic monitoring.
MCP Server for the Mattermost API, enabling Claude and other MCP clients to interact with Mattermost workspaces.
9
35
3
MIT
Why this server?
Connects to Mattermost API endpoints to retrieve and process team and channel information, enabling real-time message monitoring and interaction with specific channels within Mattermost teams.
A Model Context Protocol server that connects to Mattermost, allowing AI models to monitor and process messages from specific teams and channels in real-time via SSE or Standard I/O transport modes.
1
28
4
MIT
Why this server?
Enables sending messages to Mattermost channels through webhooks, with support for multiple channels, default channel configuration, and channel management capabilities.
Enables sending messages to Mattermost channels through webhooks via MCP protocol. Supports multiple webhook channels with simple YAML configuration and integrates seamlessly with Claude Desktop.
3
Why this server?
Enables comprehensive Mattermost workspace management including message searching, user lookup, channel management, team information retrieval, and thread browsing with automatic user information inclusion and KST timezone support.
Enables Claude to interact with Mattermost through search functionality, user management, channel operations, and team information retrieval. Supports message search by keywords/users/dates, thread viewing, and displays all timestamps in Korean Standard Time (KST).
