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mcp/harbor
Verified official

Mattermost MCP

v1.1.0

io.github.toffguy77/mattermost-mcp

Mattermost: read unreads, mentions, channels and threads; opt-in posting, edits, reactions

transport:stdio runtime:pypi
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Target client

run in your project directory

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

claude mcp add mattermost-mcp -e MATTERMOST_URL=<MATTERMOST_URL> -e MATTERMOST_ACCESS_TOKEN=<MATTERMOST_ACCESS_TOKEN> -e MATTERMOST_ENABLE_WRITE=<MATTERMOST_ENABLE_WRITE> -e MATTERMOST_TOKEN=<MATTERMOST_TOKEN> -e MATTERMOST_CSRF=<MATTERMOST_CSRF> -- uvx mattermost-mcp-server

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

This listing does not declare its tools. Connect the server and your client will discover them on the handshake.