Slack

The Slack MCP server provides full access to Slack workspaces — read channels, search messages, send DMs, and monitor threads. Features stealth mode that works without admin permissions.

Capabilities

• Read channel messages and threads
• Search across workspace messages
• Send direct messages and channel messages
• Access reactions and file attachments
• Stealth mode (no admin app installation required)
• Support for channels, group DMs, and DMs

Usage

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": ["-y", "@anthropic-ai/mcp-server-slack"],
      "env": {
        "SLACK_BOT_TOKEN": "xoxb-...",
        "SLACK_TEAM_ID": "T01234567"
      }
    }
  }
}

Getting Tokens

1. Create a Slack app at api.slack.com/apps
2. Add channels:history, channels:read, chat:write, users:read scopes
3. Install to your workspace and copy the Bot Token