What is agentcairn?
agentcairn is a MCP server by ccf that local-first agent memory: a Markdown Obsidian vault as source of truth plus a rebuildable DuckDB index for hybrid BM25, vector and graph recall. It is listed under Knowledge & memory and has 66 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | ccf |
| Repository | ccf/agentcairn |
| Popularity | 66 GitHub stars |
| Category | Knowledge & memory |
| Security | Low risk (96/100) |
| Rank | #753 of 4,418 MCP servers; #77 in Knowledge & memory |
| License | Apache-2.0 |
| Last commit | 2026-10-15 |
| Stars this week | +1 |
| Runs | Locally |
| Language | Python |
| Platforms | macOS, Windows, Linux |
Is agentcairn safe to install?
agentcairn scores 96/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 5 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Community-built server | Note |
| Runs on your machine only | Pass |
| No credentials mentioned | Pass |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install agentcairn?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/ccf/agentcairn
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add agentcairn -- <command from README> claude mcp add --transport http agentcairn <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs agentcairn for you:
Add the "agentcairn" MCP server from https://github.com/ccf/agentcairn to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.