Cathedral — Persistent Memory for AI Agents is answering right now. Last checked 13 min ago. 99 installs a week from pypi. Last commit 13 Jun 2026.
Persistent memory and drift detection for AI agents across session restarts.
We read the source, 21 h ago · rules 3dff92dd89df
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
result = subprocess.run(
# Glama verification key - server starts and responds to MCP introspection # Replace with your real key from cathedral-ai.com ENV CATHEDRAL_API_KEY=glama-check
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 13 min ago.
claude mcp add cathedral-mcp --transport http https://cathedral-ai.com/mcp
{
"mcpServers": {
"cathedral-mcp": {
"url": "https://cathedral-ai.com/mcp"
}
}
}
[mcp_servers.cathedral-mcp]
url = "https://cathedral-ai.com/mcp"
{
"mcpServers": {
"cathedral-mcp": {
"url": "https://cathedral-ai.com/mcp"
}
}
}
{
"mcpServers": {
"cathedral-mcp": {
"url": "https://cathedral-ai.com/mcp"
}
}
}
This one needs environment variables set before it will start:
CATHEDRAL_API_KEY (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).
The author declared them in the registry entry; get the values from the project itself.
This endpoint answered with an authorization challenge. The server is running, but it did not say what kind of credentials it expects.
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://cathedral-ai.com/mcp | streamable-http | needs auth | 197 ms | 13 min ago |
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Answers built from our own checks of this server.