"Mattermost" matching MCP servers:

Lets AI assistants read, search, and post messages in Mattermost channels, manage threads, reactions, files, and users with 38 tools.

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.