Cathedral — Persistent Memory for AI Agents MCP Server

Name: Cathedral — Persistent Memory for AI Agents MCP Server
Author: io.github.AILIFE1

io.github.AILIFE1/cathedral-mcp

Repository Registry

What is the Cathedral — Persistent Memory for AI Agents MCP server?

Persistent memory and drift detection for AI agents across session restarts.

How to install Cathedral — Persistent Memory for AI Agents

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

CATHEDRAL_API_KEY
required
secret
Your Cathedral API key from cathedral-ai.com
CATHEDRAL_BASE_URL
Cathedral API base URL (for self-hosted instances)
CATHEDRAL_SANITISE
Set to 1 to enable prompt injection filtering on memory content
Authorization
secret

Claude Desktop

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

{
  "mcpServers": {
    "cathedral-mcp": {
      "command": "uvx",
      "args": [
        "cathedral-mcp"
      ],
      "env": {
        "CATHEDRAL_API_KEY": "<YOUR_CATHEDRAL_API_KEY>",
        "CATHEDRAL_BASE_URL": "<YOUR_CATHEDRAL_BASE_URL>",
        "CATHEDRAL_SANITISE": "<YOUR_CATHEDRAL_SANITISE>",
        "Authorization": "<YOUR_AUTHORIZATION>"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "cathedral-mcp": {
      "command": "uvx",
      "args": [
        "cathedral-mcp"
      ],
      "env": {
        "CATHEDRAL_API_KEY": "<YOUR_CATHEDRAL_API_KEY>",
        "CATHEDRAL_BASE_URL": "<YOUR_CATHEDRAL_BASE_URL>",
        "CATHEDRAL_SANITISE": "<YOUR_CATHEDRAL_SANITISE>",
        "Authorization": "<YOUR_AUTHORIZATION>"
      }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "cathedral-mcp": {
      "command": "uvx",
      "args": [
        "cathedral-mcp"
      ],
      "env": {
        "CATHEDRAL_API_KEY": "<YOUR_CATHEDRAL_API_KEY>",
        "CATHEDRAL_BASE_URL": "<YOUR_CATHEDRAL_BASE_URL>",
        "CATHEDRAL_SANITISE": "<YOUR_CATHEDRAL_SANITISE>",
        "Authorization": "<YOUR_AUTHORIZATION>"
      }
    }
  }
}

VS Code

.vscode/mcp.json

{
  "servers": {
    "cathedral-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "cathedral-mcp"
      ],
      "env": {
        "CATHEDRAL_API_KEY": "<YOUR_CATHEDRAL_API_KEY>",
        "CATHEDRAL_BASE_URL": "<YOUR_CATHEDRAL_BASE_URL>",
        "CATHEDRAL_SANITISE": "<YOUR_CATHEDRAL_SANITISE>",
        "Authorization": "<YOUR_AUTHORIZATION>"
      }
    }
  }
}

Claude Code

claude mcp add cathedral-mcp --env CATHEDRAL_API_KEY=<YOUR_CATHEDRAL_API_KEY> --env CATHEDRAL_BASE_URL=<YOUR_CATHEDRAL_BASE_URL> --env CATHEDRAL_SANITISE=<YOUR_CATHEDRAL_SANITISE> --env Authorization=<YOUR_AUTHORIZATION> -- uvx cathedral-mcp