What is kaeru?
kaeru is a MCP server by LamantinAI that memory for LLM agents: a local graph where the agent itself keeps decisions, tasks, hypotheses and reasoning between sessions, and gets a summary of what is open and overdue on every. It is listed under Knowledge & memory and has 40 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | LamantinAI |
| Repository | LamantinAI/kaeru |
| Popularity | 40 GitHub stars |
| Category | Knowledge & memory |
| Security | Low risk (84/100) |
| Rank | #956 of 4,418 MCP servers; #98 in Knowledge & memory |
| Last commit | 2026-10-16 |
| Runs | Locally and in the cloud |
| Language | Rust |
| Platforms | macOS, Windows, Linux |
Is kaeru safe to install?
kaeru scores 84/100 on the MCPMods security check: Low risk. Things to review: sends your data to a cloud service. It passed 4 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 |
| Sends your data to a cloud service | Review |
| No credentials mentioned | Pass |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install kaeru?
- 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/LamantinAI/kaeru
- 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 kaeru -- <command from README> claude mcp add --transport http kaeru <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 kaeru for you:
Add the "kaeru" MCP server from https://github.com/LamantinAI/kaeru 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.