Cairn

Verified Integration

Author: @default•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-7": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-cairn-7"
      ],
      "env": {}
    }
  }
}

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

Architecture & Capabilities

System Overview

Maintains AI context across long agent sessions, providing warnings about context rot, preserving decisions and evidence, and ensuring faithful handoffs between sessions or models.

Indexed Date

7/22/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for Cairn

Cairn is an AI Context Continuity Engine designed for developers using long AI agent sessions. It prevents context rot, preserves critical decisions and evidence, and facilitates faithful handoffs between sessions or different LLM models.

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