What is ratary?
ratary is a MCP server by ontorata that persistent coding memory for AI assistants with hybrid search, a knowledge graph and token-efficient context, self-hostable on D1, Postgres, MariaDB or Docker. It is listed under Knowledge & memory and has 1 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | ontorata |
| Repository | ontorata/ratary |
| Popularity | 1 GitHub stars |
| Category | Knowledge & memory |
| Security | Review before installing (68/100) |
| Rank | #3,440 of 4,418 MCP servers; #358 in Knowledge & memory |
| License | MIT |
| Last commit | 2026-08-10 |
| Runs | Locally and in the cloud |
| Language | TypeScript |
| Platforms | macOS, Windows, Linux |
Is ratary safe to install?
ratary scores 68/100 on the MCPMods security check: Review before installing. Things to review: sends your data to a cloud service; can take actions such as send, write or deploy. It passed 2 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 |
| Needs an API key or account login | Note |
| Can take actions such as send, write or deploy | Review |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install ratary?
- 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/ontorata/ratary
- 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 ratary -- <command from README> claude mcp add --transport http ratary <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 ratary for you:
Add the "ratary" MCP server from https://github.com/ontorata/ratary 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.