Cairn

Verified Integration

Author: @providing•Category: ServerApplication

GitHub Repository

JSON-RPC 2.0

Protocol Standard

Sub-second

Execution Latency

Active

Operational Status

Client Configuration

— Connect Cairn to Claude Desktop or Cursor in seconds

{
  "mcpServers": {
    "cairn-1": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-cairn-1"
      ],
      "env": {}
    }
  }
}

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).

Architecture & Capabilities

System Overview

Provides an Obsidian-like memory vault for AI assistants, enabling shared, structured, and back-linked markdown notes.

Indexed Date

7/22/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for Cairn

Yes, Cairn is designed for self-hosting. It runs on Cloudflare Workers, utilizing R2 for storage, KV, and Durable Objects. Comprehensive deployment instructions and architecture details are available in the documentation.

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