Mattermost MCP Server

@kakehashi-inc

Basic information

About Mattermost MCP Server

MCP server using the Mattermost API

Mattermost MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "mattermost-mcp-server": {
      "command": "node",
      "args": [
        "dist/main.js",
        "--transport",
        "stdio"
      ]
    }
  }
}

Mattermost MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is mattermost-mcp-server?

It is a Model Context Protocol (MCP) server that connects to Mattermost API endpoints to retrieve and process information. It uses secure, token-based authentication and makes Mattermost data available through standard MCP transports. It is designed for developers and teams who want to integrate Mattermost messaging with AI assistants or other MCP-compatible tools.

How to use mattermost-mcp-server?

Clone the repository, install dependencies, set required environment variables (MATTERMOST_ENDPOINT, MATTERMOST_TOKEN, MATTERMOST_TEAM, MATTERMOST_CHANNELS), then build and run with one of three transport modes: stdio, sse, or http-stream. Example: npx mcp-server-mattermost --transport stdio.

Key features of mattermost-mcp-server

Secure, token-based connection to Mattermost API
Supports stdio, sse, and http-stream transport modes
Search for messages across multiple Mattermost channels
Customizable default channels and message fetch limits
Works with Claude Desktop via simple configuration

Use cases of mattermost-mcp-server

Enable an AI assistant to search and retrieve Mattermost messages
Integrate Mattermost data into MCP-compatible client applications
Monitor team channels and extract information programmatically
Automate workflows that require reading Mattermost conversations
Build custom bots or tools that interact with Mattermost through MCP

Frequently asked questions

What does mattermost-mcp-server do?

It acts as a bridge between Mattermost and the Model Context Protocol, allowing MCP clients (like AI assistants) to search and retrieve messages from Mattermost channels.

What are the runtime requirements?

Node.js version 22 or higher and npm version 10 or higher are required.

Where does the data live?

All data remains on your Mattermost server; the MCP server only accesses it via API calls and does not store any data locally.

What transport modes are supported?

The server supports three transport modes: `stdio` (default), `sse`, and `http-stream`.

How is authentication handled?

Authentication uses a token-based approach: you provide a Mattermost personal access token via the `MATTERMOST_TOKEN` environment variable. All API requests are authenticated with this token.

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