Slack MCP Server (korotovsky) vs Gmail MCP Server (GongRzhe)

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	Gmail MCP Server (GongRzhe) Gmail MCP with auto OAuth: send, search, label and manage email Verified stdio (local) OAuth TypeScript
Category	Communication	Communication
Language	Go	TypeScript
Transport	stdio (local)	stdio (local)
Auth	API key	OAuth
GitHub stars	1.7k	1.1k
Last commit	1 month ago	3 months ago
Verified
Actively maintained
Install	`npx -y slack-mcp-server@latest --transport stdio`	`npx -y @gongrzhe/server-gmail-autoauth-mcp`
Repo	Open	Open

Verdict

Pick Slack MCP Server (korotovsky) if you prefer the more popular, battle-tested option.

Pick Gmail MCP Server (GongRzhe) if you prefer its approach (gmail mcp with auto oauth: send, search, label and manage email).

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 Gmail MCP Server (GongRzhe)

Install / run

npx -y @gongrzhe/server-gmail-autoauth-mcp

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

{
  "mcpServers": {
    "gmail-mcp-server-gongrzhe": {
      "command": "npx",
      "args": [
        "-y",
        "@gongrzhe/server-gmail-autoauth-mcp"
      ]
    }
  }
}

FAQ

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

Pick Slack MCP Server (korotovsky) if you prefer the more popular, battle-tested option. Pick Gmail MCP Server (GongRzhe) if you prefer its approach (gmail mcp with auto oauth: send, search, label and manage email).

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

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 Gmail MCP Server (GongRzhe) 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 Gmail MCP Server (GongRzhe) →More comparisons →