What is qrx?
qrx is a Claude Code mod by qrxcodes that branded, print-ready art QR codes that always scan. Describe a picture and a link; QRX paints the code, verifies it decodes, and hosts it on a qrx.to short link. It is listed under Interface and has 3 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | qrxcodes |
| Repository | qrxcodes/qrx-mcp |
| Popularity | 3 GitHub stars |
| Category | Interface |
| Security | Review before installing (76/100) |
| Rank | #952 of 5,272 Claude Code mods; #369 in Interface |
| License | MIT |
| Last commit | 2026-10-13 |
| Hooks | 2 events |
| Sees | only the events it hooks |
| Draws on | ToolResult, ToolGroup |
Is qrx safe to install?
qrx scores 76/100 on the MCPMods security check: Review before installing. Things to review: starts processes outside the sandbox; reads environment variables. It passed 6 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| No network access | Pass |
| Starts processes outside the sandbox | Review |
| Writes no files or config | Pass |
| Reads environment variables | Review |
| Only sees the events it hooks | Pass |
| Doesn't drive Claude | Pass |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.env.get | reads env vars |
$.fs.read | reads files |
$.process.run | runs processes |
$.ui.invalidate | draws interface |
$.ui.resolve | draws interface |
How do I install qrx?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/qrxcodes/qrx-mcp claude plugin validate ./qrx-mcp/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add qrxcodes/qrx-mcp && claude plugin install qrx@qrx
Or ask Claude to set it up
Paste this into Claude Code and it installs qrx for you:
Install the "qrx" Claude Code mod from https://github.com/qrxcodes/qrx-mcp. Run claude plugin validate on it first and show me what it can access before you enable it.