Cloudflare Support Billing & Account Management Account Security > How do I change my Global API Key? How do I change my Global API Key? Alex T. June 23, 2017 23:02 Follow 1. Login to your CloudFlare account. 2. Go to "My Settings". 3. Scroll down to "Global API Key". 4. Click on "Change API Key" If you are worried about your account's security, then you should also change your password.