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MCP Language Server

Source

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Overview

MCP Language Server is a Model Context Protocol (MCP) server that provides tools for communication with language servers, enhancing the development experience for large projects.

To use the MCP Language Server, install Go, fetch the server, and configure it with your desired language server in your development environment.

  • Retrieves complete source code definitions of symbols. - Locates all usages and references of a symbol. - Provides diagnostic information for specific files. - Supports code lens hints for additional context and actions. - Allows programmatic text edits to files.
  1. Enhancing code navigation and understanding in large codebases.
  2. Providing accurate symbol references and diagnostics for various programming languages.
  3. Streamlining the development process with integrated language server capabilities.

Add to your AI client

Use these steps to connect MCP Language Server in Cursor, Claude, VS Code, and other MCP-compatible apps. The same JSON appears in the Use with menu above for one-click copy.

Cursor

Add this to your .cursor/mcp.json file in your project root, then restart Cursor.

.cursor/mcp.json

{
  "mcpServers": {
    "isaacphi-mcp-language-server-mcp-mirror": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-isaacphi-mcp-language-server-mcp-mirror"
      ]
    }
  }
}

Claude Desktop

Add this server entry to the mcpServers object in your Claude Desktop config, then restart the app.

~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

{
  "mcpServers": {
    "isaacphi-mcp-language-server-mcp-mirror": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-isaacphi-mcp-language-server-mcp-mirror"
      ]
    }
  }
}

Claude Code

Add this to your project's .mcp.json file. Claude Code will detect it automatically.

.mcp.json (project root)

{
  "mcpServers": {
    "isaacphi-mcp-language-server-mcp-mirror": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-isaacphi-mcp-language-server-mcp-mirror"
      ]
    }
  }
}

VS Code (Copilot)

Add this to your .vscode/mcp.json file. Requires the GitHub Copilot extension with MCP support enabled.

.vscode/mcp.json

{
  "servers": {
    "isaacphi-mcp-language-server-mcp-mirror": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-isaacphi-mcp-language-server-mcp-mirror"
      ]
    }
  }
}

Windsurf

Add this to your Windsurf MCP config file, then restart Windsurf.

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "isaacphi-mcp-language-server-mcp-mirror": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-isaacphi-mcp-language-server-mcp-mirror"
      ]
    }
  }
}

Cline

Open Cline settings, navigate to MCP Servers, and add this server configuration.

Cline MCP Settings (via UI)

{
  "mcpServers": {
    "isaacphi-mcp-language-server-mcp-mirror": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-isaacphi-mcp-language-server-mcp-mirror"
      ]
    }
  }
}

FAQ

What languages does MCP Language Server support?

It is compatible with multiple language servers including Python, TypeScript, Go, and Rust.

Is MCP Language Server easy to set up?

Yes! Follow the installation and configuration instructions provided in the documentation.

What is the current status of MCP Language Server?

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