Cairn runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 19 Jun 2026.
Persistent memory for AI agents and humans. Store, search, and discover patterns.
The author archived this repository on GitHub, meaning it is no longer maintained.
We read the source, 20 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.
base_str = posixpath.normpath(posixpath.join(importer_dir, import_path))
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.
Persistent memory for AI agents. Search, store, and recall across sessions.
MCP server for persistent, searchable memory for AI agents.
Persistent memory for AI assistants. Store, search, and recall across sessions.
Persistent memory for AI agents. Search and store durable facts, preferences and decisions.
Persistent cloud memory for AI agents. Store and search key-value memories across sessions.
Persistent memory for AI agents: add, search, update, and delete long-term memories.
Persistent, shared memory for AI agents — facts, checkpoints, semantic search.
Persistent memory for AI agents. Semantic search, memory graph, W3C DID identity.
Answers built from our own checks of this server.