Cairn

About

Cairn functions as an Obsidian-like memory vault, specifically designed to serve as a shared brain for AI assistants. It allows agents to access, create, and manage structured, back-linked markdown notes, ensuring knowledge, entities, meeting logs, and project context persist across various conversations and tools like Claude Desktop, Cursor, and other MCP clients. With features like WikiLinks, daily notes, full-text search, and a minimal tool interface, Cairn provides a robust and centralized knowledge base for collaborative AI workflows.

Key Features

• Isolated workspaces with member management and role-based access
• Full-text search with prefix matching, tag filtering, and backlink queries
• Timezone-aware daily notes with append/prepend operations
• Admin UI for vault browsing, file viewing, and settings management
• 1 GitHub stars
• WikiLinks & backlinks with automatic graph indexing

Use Cases

• Establishing a shared, persistent knowledge base for multiple AI agents across different platforms.
• Ensuring context, meeting logs, and project details are accessible and shared among AI assistants.
• Managing structured notes and entities that AI agents can interact with via an MCP endpoint.