What is mnemos?
mnemos is a MCP server by s60yucca that persistent memory for coding agents storing architecture decisions, bug root causes and conventions, with full-text search and token-budgeted context assembly. It is listed under Knowledge & memory and has 23 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | s60yucca |
| Repository | s60yucca/mnemos |
| Popularity | 23 GitHub stars |
| Category | Knowledge & memory |
| Security | Low risk (92/100) |
| Rank | #1,241 of 4,418 MCP servers; #128 in Knowledge & memory |
| License | MIT |
| Last commit | 2026-07-21 |
| Runs | Locally |
| Language | Go |
| Platforms | macOS, Windows, Linux |
Is mnemos safe to install?
mnemos scores 92/100 on the MCPMods security check: Low risk. No checks raised a concern. 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 |
| Runs on your machine only | Pass |
| Needs an API key or account login | Note |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install mnemos?
- 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/s60yucca/mnemos
- 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 mnemos -- <command from README> claude mcp add --transport http mnemos <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 mnemos for you:
Add the "mnemos" MCP server from https://github.com/s60yucca/mnemos 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.