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everything vs opentabs

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

everything
by modelcontextprotocol
opentabs
by opentabs-dev
Stars★ 85,748★ 579
30d uses
Score7753
Official
Categories
Developer ToolsAI / LLM ToolsOther
Browser AutomationDeveloper ToolsProductivity
LanguageTypeScriptTypeScript
Last committhis monththis month

everything · Summary

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

opentabs · Summary

Browser automation server that authenticates with web APIs through browser sessions, exposing 100+ plugins with ~2,000 tools.

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

opentabs · Use cases

  • Automating tasks across multiple web services without API keys
  • Building custom AI agents that interact with web applications
  • Creating workflows that integrate authenticated API calls

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

opentabs · Install

# Install CLI globally
npm install -g @opentabs-dev/cli

# Start the server
opentabs start
  1. Go to chrome://extensions/ in Chrome (enable Developer mode)
  2. Load the extension from ~/.opentabs/extension (Load unpacked)

For Claude Desktop, add this to your claude_desktop_config.json:

{
  "mcpServers": {
    "opentabs": {
      "command": "npx",
      "args": ["@opentabs-dev/cli", "mcp"]
    }
  }
}
Comparison generated from public README + GitHub signals. Last updated automatically.