open vsx mcp for Claude Desktop

io.github.mrfentmen/open-vsx-mcp

Keyless MCP server for Open VSX: VS Code extensions, versions, descriptions, download stats.

client:Claude Desktop transport:stdio runtime:npm

Install open vsx mcp in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "open-vsx-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "open-vsx-mcp"
      ]
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs