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Slack MCP

Post messages and read channel history in Slack

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About

Send messages, read channel history, list channels and users, and manage reactions in your Slack workspace. Requires a Slack app token with the appropriate scopes; every action runs as the token owner and is subject to workspace permissions.

Example tools

Illustrative tool names — the actual tool set is defined by the server at runtime.

send_message
Post a message to a channel or user
list_channels
List channels the bot can access
search_messages
Search messages by query and date range

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Install Slack MCP

Claude Desktop

Add this to claude_desktop_config.json.

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-slack"
      ]
    }
  }
}

Cursor

Add this to ~/.cursor/mcp.json.

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-slack"
      ]
    }
  }
}

VS Code

Add this to your workspace settings.json.

{
  "mcp.servers": {
    "slack": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-slack"
      ]
    }
  }
}

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