What is universal-checkout?
universal-checkout is a Claude skill by zincio that official Zinc API (zinc.com) checkout across 50+ US retailers. It is listed under Other and has 7 GitHub stars.
| Type | Claude skill |
|---|---|
| Author | zincio |
| Repository | zincio/skills |
| Popularity | 7 GitHub stars |
| Category | Other |
| Security | Low risk (88/100) |
| Rank | #1,038 of 1,262 Claude skills; #209 in Other |
| SKILL.md length | 67 lines |
| License | MIT |
| Last commit | 2026-10-14 |
Is universal-checkout safe to install?
universal-checkout scores 88/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 6 of 9 checks.
Skill results come from a static scan of its SKILL.md for instruction overrides, hidden actions, risky commands and credential access.
| Check | Result |
|---|---|
| No instruction-override phrases | Pass |
| No hidden actions | Pass |
| No pipe-to-shell installers | Pass |
| No obfuscated code | Pass |
| No destructive commands | Pass |
| Reads keys or credentials | Note |
| Makes network requests | Note |
| Runs shell commands | Note |
| Installs no packages | Pass |
What the scan matched
- credentials:
ZINC_API_KEY - network:
https:// - shell:
```bash
How do I install universal-checkout?
- Install with the skills CLI. Works for Claude Code and other agents that read skills.
npx skills add https://github.com/zincio/skills --skill universal-checkout
- Or copy it by hand. Claude Code loads any folder with a SKILL.md from ~/.claude/skills.
git clone https://github.com/zincio/skills cp -r skills/skills/universal-checkout ~/.claude/skills/universal-checkout
- Use it. Claude loads the skill when a task matches its description. You can also name it in your prompt.
Use the universal-checkout skill to …
Or ask Claude to set it up
Paste this into Claude Code and it installs universal-checkout for you:
Install the "universal-checkout" skill from https://github.com/zincio/skills/tree/master/skills/universal-checkout into ~/.claude/skills, then tell me in one line what it does.