Step 1
Install in your client
Config is the same across clients — only the file and path differ.
CD
Supported in Claude Desktopstdio · Node 18+
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"cairn-mcp-server": {
"command": "npx",
"args": [
"-y",
"cairn-mcp-server"
]
}
}
}Are you the author?
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What Cairn Mcp Server does
Cairn is an AI-maintained project memory engine. It automatically captures project decisions, rejected paths, and accepted trade-offs from Git history and AI conversations, then routes them through a trust system into structured memory that AI coding assistants consume as behavioral constraints.
Test This Server
Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.
npx -y 'cairn-mcp-server' 2>&1 | head -1 && echo "✓ Server started successfully"
After testing, let us know if it worked:
Scored, not listed
Why this score
Five weighted categories — click any category to see the underlying evidence.
Score breakdown
57/100across 5 weighted dimensions
0255075100
20
16
11
10
−43
Security
Maintenance
Efficiency
Documentation
Compatibility
Categoriesclick a row to see evidence
Security
OSV.devNo known CVEs.
Checked cairn-mcp-server against OSV.dev.
Community
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Frequently Asked Questions
- Is Cairn Mcp Server safe to use?
- Cairn Mcp Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
- How do I install Cairn Mcp Server?
- Install Cairn Mcp Server via npm: `npx cairn-mcp-server`. Then add it to your MCP client config file.
- What AI clients work with Cairn Mcp Server?
- Cairn Mcp Server is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
- Is Cairn Mcp Server actively maintained?
- Cairn Mcp Server is actively maintained — last commit was 0 days ago. It has 1 GitHub stars.
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Community
Discussion
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