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mcp/harbor
Claude Desktop

Citadel for Claude Desktop

dev.citadeldb/mcp

Encrypted-first embedded database with vector search and agent memory, exposed as MCP tools

client:Claude Desktop transport:stdio runtime:pypi

Install Citadel in Claude Desktop

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

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "mcp": {
      "command": "uvx",
      "args": [
        "citadeldb-mcp"
      ],
      "env": {
        "CITADEL_KEY": "<CITADEL_KEY>"
      }
    }
  }
}

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

Citadel in other clients

Citadel MCP server