Slack MCP Server (session-based) vs Slack MCP Server (korotovsky)

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

	Slack MCP Server (session-based) Session-token Slack access for AI agents — no OAuth, no app registration, 21 tools, one command. Unverified stdio (local) API key JavaScript	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	JavaScript	Go
Transport	stdio (local)	stdio (local)
Auth	API key	API key
GitHub stars	28	1.7k
Last commit	1 day ago	1 month ago
Verified
Actively maintained
Install	`npx -y @jtalk22/slack-mcp --setup`	`npx -y slack-mcp-server@latest --transport stdio`
Repo	Open	Open

Verdict

Pick Slack MCP Server (session-based) if you need the broadest set of tools.

Pick Slack MCP Server (korotovsky) if you prefer the more popular, battle-tested option, and you want a verified, documented setup.

Add Slack MCP Server (session-based)

Install / run

npx -y @jtalk22/slack-mcp --setup

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

{
  "mcpServers": {
    "slack-mcp-server-session-based": {
      "command": "npx",
      "args": [
        "-y",
        "@jtalk22/slack-mcp"
      ],
      "env": {
        "SLACK_TOKEN": "xoxc-your-token",
        "SLACK_COOKIE": "xoxd-your-cookie"
      }
    }
  }
}

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

Slack MCP Server (session-based) or Slack MCP Server (korotovsky) — which is better?

Pick Slack MCP Server (session-based) if you need the broadest set of tools. Pick Slack MCP Server (korotovsky) if you prefer the more popular, battle-tested option, and you want a verified, documented setup.

Can I use both Slack MCP Server (session-based) 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 Slack MCP Server (session-based) 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 Slack MCP Server (session-based) →View Slack MCP Server (korotovsky) →More comparisons →