Citadel MCP Server: Install & Setup

Install Citadel in Claude Code

Claude Code

claude mcp add citadel -e CITADEL_KEY=... -- uvx citadeldb-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

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

Replace each ... with your own value.

Frequently asked questions

What does the Citadel MCP server do?

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

Is the Citadel MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Citadel run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Citadel to Claude Code?

Run: claude mcp add citadel -e CITADEL_KEY=... -- uvx citadeldb-mcp

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