SafetyClip is a clipboard manager for Mac. It saves everything you copy, so you can press ⌃⌘V in any app, search, and paste it again. But a clipboard history also collects your passwords and API keys. So SafetyClip spots them as you copy them and locks them behind Touch ID. A copied API key comes off the clipboard right away, so it isn't there for other apps to read, and you can't paste it into an AI chat by mistake. Everything stays on your Mac. $8 once, full Swift source included.