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Mattermost MCP Server

by vriesdemichael Your server? Claim it
local only

Mattermost runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 21 Oct 2026.

Read, search and post in Mattermost as yourself or a bot.

—
Installs / week
not published
0
Stars
4 open issues
21 Oct 2026
Last commit
from GitHub
Apache-2.0
License
Go

What the code does

We read the source, 3 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

        path = filepath.Join(home, rest)
Touches key and credential files internal/server/attach.go:276
    "id_rsa": true, "id_dsa": true, "id_ecdsa": true, "id_ed25519": true,

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

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Mattermost — questions

Answers built from our own checks of this server.

Why is there no uptime for Mattermost?
Mattermost runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone.
Is Mattermost open source?
Yes — it is published under the Apache-2.0 licence, written in Go, 0 stars on GitHub and 4 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.