WhatsApp MCP Server (lharries) vs Slack MCP Server (korotovsky)

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

	WhatsApp MCP Server (lharries) Connect your personal WhatsApp: search, read and send messages and media locally Verified stdio (local) No auth Python	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
Category	Communication	Communication
Language	Python	Go
Transport	stdio (local)	stdio (local)
Auth	None	API key
GitHub stars	5.7k	1.7k
Last commit	28 days ago	1 month ago
Verified
Actively maintained
Install	`git clone https://github.com/lharries/whatsapp-mcp && cd whatsapp-mcp/whatsapp-bridge && go run main.go`	`npx -y slack-mcp-server@latest --transport stdio`
Repo	Open	Open

Verdict

Pick WhatsApp MCP Server (lharries) if you prefer the more popular, battle-tested option, and you want zero-setup with no API key.

Pick Slack MCP Server (korotovsky) if you prefer its approach (powerful slack mcp with stdio/sse/http, dms, group dms and no-admin token auth).

Add WhatsApp MCP Server (lharries)

Install / run

git clone https://github.com/lharries/whatsapp-mcp && cd whatsapp-mcp/whatsapp-bridge && go run main.go

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

{
  "mcpServers": {
    "whatsapp-mcp-server-lharries": {
      "command": "uv",
      "args": [
        "--directory",
        "/absolute/path/to/whatsapp-mcp/whatsapp-mcp-server",
        "run",
        "main.py"
      ]
    }
  }
}

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>"
      }
    }
  }
}

FAQ

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

Pick WhatsApp MCP Server (lharries) if you prefer the more popular, battle-tested option, and you want zero-setup with no API key. Pick Slack MCP Server (korotovsky) if you prefer its approach (powerful slack mcp with stdio/sse/http, dms, group dms and no-admin token auth).

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

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 WhatsApp MCP Server (lharries) and Slack MCP Server (korotovsky) work with Claude, Cursor and Windsurf?

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

View WhatsApp MCP Server (lharries) →View Slack MCP Server (korotovsky) →More comparisons →