Mattermost is listed as active in the registry but did not answer our last check. Last commit 4 Nov 2026.
Official Mattermost MCP server, built into the Mattermost Agents plugin. Read, search and post.
What the code does
We read the source, 2 d ago · rules 995398eba69f
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.
select {
case <-ctx.Done():
return err
case <-time.After(delay + jitter):
return assets.ReadFile(filepath.Join("migrations", name))
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.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.
claude mcp add mattermost-plugin-agents --transport http 'https://{mattermost_host}/plugins/mattermost-ai/mcp-server/mcp'https://{mattermost_host}/plugins/mattermost-ai/mcp-server/mcp[mcp_servers.mattermost-plugin-agents]
url = "https://{mattermost_host}/plugins/mattermost-ai/mcp-server/mcp"{
"mcpServers": {
"mattermost-plugin-agents": {
"url": "https://{mattermost_host}/plugins/mattermost-ai/mcp-server/mcp"
}
}
}{
"servers": {
"mattermost-plugin-agents": {
"type": "http",
"url": "https://{mattermost_host}/plugins/mattermost-ai/mcp-server/mcp"
}
}
}Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://{mattermost_host}/plugins/mattermost-ai/mcp-server/mcp | streamable-http | answering | 3 ms | 10 min ago |
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Mattermost — questions
Answers built from our own checks of this server.