Slack MCP Server (korotovsky) vs iMessage MCP

A side-by-side comparison of two Communication servers — tools, transport, auth, maintenance, and copy-paste config for each.

	Slack MCP Server (korotovsky) Powerful Slack MCP with stdio/SSE/HTTP, DMs, group DMs and no-admin token auth Verified stdio (local) API key Go	iMessage MCP Read-only MCP server for searching and reading your macOS iMessage history and Contacts. Unverified stdio (local) No auth TypeScript
Category	Communication	Communication
Language	Go	TypeScript
Transport	stdio (local)	stdio (local)
Auth	API key	None
GitHub stars	1.7k	28
Last commit	3 months ago	5 months ago
Verified
Actively maintained
Install	`npx -y slack-mcp-server@latest --transport stdio`	`deno install --global --allow-read --allow-env --allow-sys --allow-ffi -n imessage-mcp jsr:@wyattjoh/imessage-mcp`
Repo	Open	Open

Verdict

Pick Slack MCP Server (korotovsky) if you prefer the more popular, battle-tested option, and you need the broadest set of tools.

Pick iMessage MCP if you want zero-setup with no API key.

Add Slack MCP Server (korotovsky)

Install / run

npx -y slack-mcp-server@latest --transport stdio

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "slack-mcp-server-korotovsky": {
      "command": "npx",
      "args": [
        "-y",
        "slack-mcp-server@latest",
        "--transport",
        "stdio"
      ],
      "env": {
        "SLACK_MCP_XOXP_TOKEN": "<your-slack-user-oauth-token-xoxp>"
      }
    }
  }
}

Add iMessage MCP

Install / run

deno install --global --allow-read --allow-env --allow-sys --allow-ffi -n imessage-mcp jsr:@wyattjoh/imessage-mcp

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "imessage-mcp": {
      "command": "deno",
      "args": [
        "run",
        "--allow-read",
        "--allow-env",
        "--allow-sys",
        "--allow-ffi",
        "jsr:@wyattjoh/imessage-mcp"
      ]
    }
  }
}

FAQ

Slack MCP Server (korotovsky) or iMessage MCP — which is better?

Pick Slack MCP Server (korotovsky) if you prefer the more popular, battle-tested option, and you need the broadest set of tools. Pick iMessage MCP if you want zero-setup with no API key.

Can I use both Slack MCP Server (korotovsky) and iMessage MCP?

Yes — MCP clients let you enable multiple servers at once. Add both configs to your client's mcpServers and use whichever tool fits the task.

Do Slack MCP Server (korotovsky) and iMessage MCP work with Claude, Cursor and Windsurf?

Both do. Copy the per-client config below into Claude Desktop, Cursor, or Windsurf.

View Slack MCP Server (korotovsky) →View iMessage MCP →More comparisons →