● MaintainedProductivity

Slack (korotovsky) MCP Server

The most powerful MCP Slack Server with no permission requirements, Apps support, GovSlack, DMs, Group DMs and smart history fetch logic.

Install

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

Source: official setup docs

Example config (Cursor / Claude Desktop)

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "slack-mcp-server@latest",
        "--transport",
        "stdio"
      ],
      "env": {
        "SLACK_MCP_XOXC_TOKEN": "<your-value>",
        "SLACK_MCP_XOXD_TOKEN": "<your-value>"
      }
    }
  }
}

VS Code uses "servers" instead of "mcpServers" (why). On Windows, wrap npx with cmd /c (fix).

At a glance

Repository	korotovsky/slack-mcp-server
GitHub stars	1,867
Last commit	2026-05-14 (154 days ago)
Status	maintained
Clients mentioned in README	Cursor
Auth	OAuth or API key/token · `SLACK_MCP_XOXC_TOKEN` `SLACK_MCP_XOXD_TOKEN` `SLACK_MCP_XOXP_TOKEN` `SLACK_MCP_XOXB_TOKEN`
Language / License	Go / MIT