npm install -g cyber-slack
# or
pnpm add -g cyber-slack

# User token (xoxp-) - full access including search
export SLACK_TOKEN=xoxp-your-token-here

# Or bot token (xoxb-) - limited access, no search
export SLACK_BOT_TOKEN=xoxb-your-token-here

cyber-slack                              # show auth status
cyber-slack mcp                          # start MCP server

# Channels
cyber-slack channels list                # list public channels
cyber-slack channels list -t public_channel,private_channel

# Conversations
cyber-slack conversations history <channel>
cyber-slack conversations replies <channel> <thread_ts>
cyber-slack conversations post <channel> "message"
cyber-slack conversations search "query"  # requires user token

# Users
cyber-slack users list
cyber-slack users info <user_id>
cyber-slack users search "query"

# Reactions
cyber-slack reactions add <channel> <timestamp> thumbsup
cyber-slack reactions remove <channel> <timestamp> thumbsup

# User Groups
cyber-slack usergroups list
cyber-slack usergroups create "Team Name" --handle team
cyber-slack usergroups update <group_id> --name "New Name"
cyber-slack usergroups set-users <group_id> U123,U456

{
  "mcpServers": {
    "cyber-slack": {
      "command": "npx",
      "args": ["cyber-slack", "mcp"],
      "env": {
        "SLACK_TOKEN": "${SLACK_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "cyber-slack": {
      "command": "cyber-slack",
      "args": ["mcp"],
      "env": {
        "SLACK_TOKEN": "${SLACK_TOKEN}"
      }
    }
  }
}