Slack MCP

What it does

Connects Claude Code to your Slack workspaces using existing local session tokens. It provides a read-only bridge that allows the AI to search messages, list channels, and retrieve thread history without requiring a formal Slack App registration or OAuth approval process.

Tools

• list_workspaces: List all configured Slack workspaces.
• list_channels: List public and private channels within a workspace.
• get_channel_history: Retrieve a stream of messages from a specific channel.
• get_thread: Get all replies and context for a specific message thread.
• search_messages: Perform full-text searches across the workspace.
• get_channel_info: Fetch metadata for a specific channel.
• get_user_info: Retrieve a user's profile information by ID.
• list_users: List all members of a given workspace.

Installation

Add the following to your claude_desktop_config.json (ensure the path points to your installation):

{
  "mcpServers": {
    "slack-mcp": {
      "command": "/path/to/slack-mcp/.venv/bin/slack-mcp-server"
    }
  }
}

Supported hosts

• Claude Code
• Claude Desktop