slack-mcp-server vs everything

Side-by-side comparison to help you pick between these two MCP servers.

	slack-mcp-server by korotovsky	everything by modelcontextprotocol
Stars	★ 1,603	★ 85,748
30d uses	—	—
Score	56	77
Official	—	✓
Categories	CommunicationDeveloper ToolsProductivity	Developer ToolsAI / LLM ToolsOther
Language	Go	TypeScript
Last commit	this month	this month

slack-mcp-server · Summary

A feature-rich MCP server for Slack with stealth mode, OAuth support, and comprehensive message management tools.

everything · Summary

Official MCP test server exercising all protocol features for client builders.

slack-mcp-server · Use cases

Integrating Slack conversations with AI assistants for contextual awareness
Automating message monitoring and response workflows in Slack channels
Extracting and analyzing historical Slack data for reporting or training purposes

everything · Use cases

Testing MCP client implementations against all protocol features
Learning MCP protocol capabilities through a reference server
Validating client compatibility with different transport methods

slack-mcp-server · Install

Installation

Install the Go package:

go install github.com/korotovsky/slack-mcp-server@latest

Configure with Claude Desktop (add to claude_desktop_config.json):

{
  "mcpServers": {
    "slack": {
      "command": "slack-mcp-server",
      "args": []
    }
  }
}

Set environment variables for authentication:

export SLACK_MCP_TOKEN="xoxc-your-token-here"

For OAuth mode, set:

export SLACK_MCP_TOKEN="xoxp-your-oauth-token-here"

To enable message posting, add:

export SLACK_MCP_ADD_MESSAGE_TOOL="true"  # or specific channel IDs

everything · Install

NPX (recommended)

{
  "mcpServers": {
    "everything": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-everything"]
    }
  }
}

On Windows, use cmd /c:

{
  "mcpServers": {
    "everything": {
      "command": "cmd",
      "args": ["/c", "npx", "-y", "@modelcontextprotocol/server-everything"]
    }
  }
}

Docker

{
  "mcpServers": {
    "everything": {
      "command": "docker",
      "args": ["run", "-i", "--rm", "mcp/everything"]
    }
  }
}

Global install

npm install -g @modelcontextprotocol/server-everything@latest
npx @modelcontextprotocol/server-everything

Comparison generated from public README + GitHub signals. Last updated automatically.