MCP Server (Language Server Protocol)

What is MCP Server (Language Server Protocol)?

A TypeScript-based Language Server Protocol implementation that provides fast code reference searching across codebases. It offers both a web interface and a terminal interface, using multiple search strategies (ripgrep, grep, and Node.js) with automatic fallback. It is designed for developers who need to search and reference code efficiently.

How to use MCP Server (Language Server Protocol)?

Clone the repository, navigate to src/mcp-server/v1, install dependencies (npm install), build (npm run build), then start the server (npm run start for production or npm run dev for development with hot reload). Access the web interface at http://localhost:3000 or use the terminal interface that starts automatically.

Key features of MCP Server (Language Server Protocol)

• Fast code reference search using ripgrep
• Web interface for easy searching
• Terminal interface for command-line usage
• Grouped results by file type
• Multiple fallback search mechanisms
• Hot reload support for development

Use cases of MCP Server (Language Server Protocol)

• Searching for all references to a function or variable across a large codebase
• Discovering code patterns and usages without opening multiple files
• Quickly locating specific code snippets during code review or debugging
• Running code searches in a CI/CD pipeline via the terminal interface

FAQ from MCP Server (Language Server Protocol)

What prerequisites are needed?

Node.js v14 or higher, npm, and ripgrep (recommended). macOS users also need Homebrew. The server will check for required software and provide installation instructions if missing.

How does the search work?

The server tries ripgrep first (fastest, supports regex), then falls back to grep, and finally to a pure Node.js implementation if neither is available. Common directories like node_modules and .git are excluded automatically.

What is the default port and how to handle port conflicts?

The default port is 3000. If the port is already in use, the server will automatically find an available port.

Is there a development mode?

Yes, run npm run dev to start with hot reload support, so changes to server.ts or index.html are applied automatically.

Does the server support multiple interfaces?

Yes, it provides both a web interface (accessible via browser at http://localhost:3000) and a terminal interface that starts automatically with the server.