WebCrypt MCP Server for Claude Desktop

io.github.putervision/webcrypt

Zero-dependency Web Crypto & AI Agent MCP Server (AES-256-GCM, RSA-4096, PQC, Signatures).

client:Claude Desktop transport:stdio runtime:npm

Install WebCrypt MCP Server in Claude Desktop

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

{
  "mcpServers": {
    "webcrypt": {
      "command": "npx",
      "args": [
        "-y",
        "webcrypt"
      ]
    }
  }
}

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