everything vs LSP4J-MCP

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

	everything by modelcontextprotocol	LSP4J-MCP by stephanj
Stars	★ 85,748	★ 23
30d uses	—	—
Score	77	42
Official	✓	—
Categories	Developer ToolsAI / LLM ToolsOther	Developer ToolsAI / LLM Tools
Language	TypeScript	Java
Last commit	this month	4 mo ago

everything · Summary

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

LSP4J-MCP · Summary

Java MCP server wrapping JDTLS to provide Java IDE features like symbol search and reference finding to AI assistants.

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

LSP4J-MCP · Use cases

AI assistants analyzing Java code structure and finding classes or methods
Refactoring assistance by finding all references to specific code elements
Code navigation to definitions and implementations of interfaces or methods
Understanding large Java codebases by exploring relationships between symbols

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

LSP4J-MCP · Install

Installation

Prerequisites

Java 21+
Maven 3.8+
JDTLS installed (e.g., via Homebrew: brew install jdtls)

Build

mvn clean package

This creates a shaded JAR at target/lsp4j-mcp-1.0.0-SNAPSHOT.jar.

Claude Desktop Configuration

Add to your .claude_desktop_config.json:

{
  "mcpServers": {
    "java-lsp": {
      "command": "java",
      "args": [
        "-jar",
        "/path/to/LSP4J-MCP/target/lsp4j-mcp-1.0.0-SNAPSHOT.jar",
        "/path/to/your/java/project",
        "jdtls"
      ],
      "env": {
        "LOG_FILE": "/tmp/lsp4j-mcp.log"
      }
    }
  }
}

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