Is Language Server MCP Bridge safe to use?

Language Server MCP Bridge has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.

How do I install Language Server MCP Bridge?

Language Server MCP Bridge supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can Language Server MCP Bridge do?

Language Server MCP Bridge provides 10 tools: lsp_definition, lsp_references, lsp_hover, lsp_completion, lsp_workspace_symbols and 5 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with Language Server MCP Bridge?

Language Server MCP Bridge is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse transport.

Is Language Server MCP Bridge actively maintained?

Language Server MCP Bridge is less actively maintained — last commit was 299 days ago. It has 29 GitHub stars.

Language Server MCP Bridge

Name: Language Server MCP Bridge
Author: sehejjain

@vscode/vsce · by sehejjain

A universal VS Code extension that bridges any Language Server Protocol (LSP) capabilities to MCP tools and GitHub Copilot Language Model Tools, enabling intelligent code navigation and analysis across all programming languages.

29 1.0M/wk 10 tools GitHub npm

No known CVEs

MIT license

Stale

Last commit 299d ago

Works with most clients

Transport: stdio, sse

10 tools · ~403 tok

Grade A · 0.2% of 200K ctx

Edit this pageView history

Developer Tools

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "language-server-mcp-bridge": {
      "args": [
        "-y",
        "@vscode/vsce"
      ],
      "command": "npx"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/language-server-mcp-bridge)](https://mcppedia.org/s/language-server-mcp-bridge)

Read me

What Language Server MCP Bridge does

A Visual Studio Code extension that exposes any Language Server Protocol (LSP) capabilities as Model Context Protocol (MCP) tools and GitHub Copilot Language Model Tools. This universal extension works with any programming language that has an active language server in VSCode.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y '@vscode/vsce' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

83/100across 5 weighted dimensions

How we score →

0255075100

−17

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked @vscode/vsce against OSV.dev.

Inventory

Tools (10)

Click any tool to inspect its schema.

~403 tokens total

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Language Server MCP Bridge safe to use?: Language Server MCP Bridge has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
How do I install Language Server MCP Bridge?: Language Server MCP Bridge supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Language Server MCP Bridge do?: Language Server MCP Bridge provides 10 tools: lsp_definition, lsp_references, lsp_hover, lsp_completion, lsp_workspace_symbols and 5 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Language Server MCP Bridge?: Language Server MCP Bridge is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse transport.
Is Language Server MCP Bridge actively maintained?: Language Server MCP Bridge is less actively maintained — last commit was 299 days ago. It has 29 GitHub stars.

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Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Edit this pageView history

Developer Tools

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "language-server-mcp-bridge": {
      "args": [
        "-y",
        "@vscode/vsce"
      ],
      "command": "npx"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/language-server-mcp-bridge)](https://mcppedia.org/s/language-server-mcp-bridge)

Read me

What Language Server MCP Bridge does

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y '@vscode/vsce' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

README

Language Server tools for Copilot

A Visual Studio Code extension that exposes any Language Server Protocol (LSP) capabilities as Model Context Protocol (MCP) tools and GitHub Copilot Language Model Tools. This universal extension works with any programming language that has an active language server in VSCode.

I created this because I work on an incredibly large C++ project (with clangd) and Copilot is not able find objects efficiently.

📥 Install from VS Code Marketplace

Or install directly in VS Code: Press Ctrl+Shift+X, search for "LSP MCP Bridge", and click Install

✨ Demo

Here's a quick example of how the extension enhances GitHub Copilot's understanding of a C++ codebase.

1. A sample C++ project:

A small excerpt of the C++ project used in the demo.

2. Copilot's enhanced answer:

Copilot's response enriched with precise definitions, references, and hover info provided by the LSP-MCP bridge.

3. Asking Copilot about the code:

Copilot queries the registered LSP tools (workspace/document symbols, references) to find the symbol and its implementation.

🎯 Purpose

This extension bridges the gap between any existing language server's capabilities and MCP clients + GitHub Copilot, enabling AI models and tools to:

Navigate codebases intelligently across any programming language
Provide context-aware code suggestions and analysis
Answer questions about code structure and functionality
Assist with code refactoring and analysis
Automatically enhance GitHub Copilot with deep language server insights

🚀 Features

Language Model Tools for GitHub Copilot (10 Tools)

The extension exposes comprehensive LSP capabilities as GitHub Copilot tools that can be used automatically:

lsp_definition - Find symbol definitions
lsp_references - Find all references to a symbol
lsp_hover - Get symbol information and documentation
lsp_completion - Get code completion suggestions
lsp_workspace_symbols - Search symbols across the workspace
lsp_document_symbols - Get document structure/outline
lsp_rename_symbol - Preview symbol rename impact
lsp_code_actions - Get available quick fixes and refactorings
lsp_format_document - Preview document formatting
lsp_signature_help - Get function signature and parameter help

Universal Language Support

Works with any programming language that has an active language server in VSCode:

Python (Pylance, Jedi)
TypeScript/JavaScript (Built-in)
Rust (rust-analyzer)
Go (Go extension)
C/C++ (C/C++ extension, clangd)
Java (Language Support for Java)
C# (.NET extension)
PHP (Intelephense)
Ruby (Solargraph)
And many more...

📦 Installation

🎯 Recommended: From VS Code Marketplace

Method 1: Direct Link

Click here: **[Install LSP MCP Bridge](https://marketplace.visualstudio.com/items?itemName=s

... View full README on GitHub

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

83/100across 5 weighted dimensions

How we score →

0255075100

−17

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked @vscode/vsce against OSV.dev.

Inventory

Tools (10)

Click any tool to inspect its schema.

~403 tokens total

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Language Server MCP Bridge safe to use?: Language Server MCP Bridge has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
How do I install Language Server MCP Bridge?: Language Server MCP Bridge supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Language Server MCP Bridge do?: Language Server MCP Bridge provides 10 tools: lsp_definition, lsp_references, lsp_hover, lsp_completion, lsp_workspace_symbols and 5 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Language Server MCP Bridge?: Language Server MCP Bridge is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse transport.
Is Language Server MCP Bridge actively maintained?: Language Server MCP Bridge is less actively maintained — last commit was 299 days ago. It has 29 GitHub stars.