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everything vs action_mcp

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

everything
by modelcontextprotocol
action_mcp
by seuros
Stars★ 85,748★ 113
30d uses
Score7747
Official
Categories
Developer ToolsAI / LLM ToolsOther
Developer ToolsAI / LLM ToolsOps & Infra
LanguageTypeScriptRuby
Last committhis monththis month

everything · Summary

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

action_mcp · Summary

A Ruby gem that provides MCP server capabilities to Rails applications with robust production-ready network-based deployments.

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

action_mcp · Use cases

  • Building MCP servers for Rails applications that need to expose data and functionality to AI systems
  • Creating production-ready MCP integrations that require robust network-based connections
  • Developing custom MCP tools and prompts for Ruby/Rails applications with consent management and structured output

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

action_mcp · Install

Installation

Add ActionMCP to your Gemfile:

# Add gem to your Gemfile
$ bundle add actionmcp

# Install dependencies
bundle install

# Copy migrations from the engine
bin/rails action_mcp:install:migrations

# Generate base classes and configuration
bin/rails generate action_mcp:install

# Create necessary database tables
bin/rails db:migrate

Configuration

ActionMCP supports network-based MCP connections. To connect with Claude Desktop, add this to your config/mcp.yml:

development:
  servers:
    - name: action_mcp
      command: ["bundle", "exec", "rails", "server"]
      args: []
      env: {}

And in Claude Desktop configuration:

{
  "mcpServers": {
    "action_mcp": {
      "command": "ruby",
      "args": ["-e", "require 'action_mcp'; ActionMCP.start"]
    }
  }
}
Comparison generated from public README + GitHub signals. Last updated automatically.