What is metatron?
metatron is a MCP server by kerbelp that self-hosted server that captures design patterns, conventions and decisions from git history and developer feedback and serves them to coding agents. It is listed under Developer tools and has 26 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | kerbelp |
| Repository | kerbelp/metatron |
| Popularity | 26 GitHub stars |
| Category | Developer tools |
| Security | Low risk (96/100) |
| Rank | #1,158 of 4,418 MCP servers; #283 in Developer tools |
| License | MIT |
| Last commit | 2026-10-13 |
| Stars this week | +1 |
| Runs | Locally |
| Language | Python |
| Platforms | macOS, Windows, Linux |
Is metatron safe to install?
metatron 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 metatron?
- 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/kerbelp/metatron
- 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 metatron -- <command from README> claude mcp add --transport http metatron <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 metatron for you:
Add the "metatron" MCP server from https://github.com/kerbelp/metatron 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.