New lesson is up in the classroom, under Claude Code > Advanced.
If Claude Code tells you a key is exposed every time you paste one, this is the fix I use. Every API key I have now lives in Doppler, synced to Vercel, and Claude only works with the key names.
What's inside:
- Setting up a free Doppler account and connecting Vercel
- Installing the Easy API Doppler skill from your member portal
- Adding a new key live with one shortcut