You'll need an Anthropic account (same one you use for claude.ai). Follow these six steps and you're done.
Once you have your key, paste it in aiusage. We encrypt it. You save 20× on your Claude bill. Rotate anytime.
Illustration · hover to pause
platform.claude.comOpen a new tab and head to platform.claude.com.
You'll sign in with the same account you use for claude.ai — no separate signup.
SettingsTop-right corner, click your profile avatar, then click Settings.
API keys in the sidebarIn the left sidebar, click API keys.
Create KeyTop-right of the API keys page, click the coral Create Key button. Name it aiusage so you can track it, then click Create Key again to confirm.
Tip: naming it "aiusage" makes it easy to revoke later if you ever want to.
It starts with sk-ant-. This is the only time you'll see it. Copy it now. If you lose it, you'll need to create a new one.
Use ⌘ + C (Mac) or Ctrl + C (Windows).
Head to your Setup page on aiusage and paste the key into the Your Claude Key tab. We verify it, encrypt it, and you're done.
Go to Setup · paste your key →key-tutorial.movffmpeg -i key-tutorial.mov -vcodec h264 -acodec aac public/key-tutorial.mp4git add public/key-tutorial.mp4, commit, push, Fly redeploys