How to Change the API Key on a WordPress Blog

New API
1. Log in to your WordPress.com account and go to your dashboard.
2. Click 'Dashboard' from the left menu, then click the 'Site Stats' sub-menu.

3. Select the blog's name from the drop-down menu in the top-right corner, then click the 'Switch' button.
4. Click the plus sign next to the 'Configure Stats Access,' type an email address into the 'Add User' text box, then click the 'Add' button. You will see a new user appear on your user's list and WordPress.com will send an email to the email address with your API key.
5. Click the 'Promote' button next to the new user's name to make that user the administrator.
6. Click the 'Leave this blog' button to remove the original user.
7. Check your email account for the message with the new WordPress API key.
8. Highlight the API key with your mouse, then right-click and select 'Copy.'
Change API
9. Log in to your WordPress blog and click on 'Plugins' from the left menu.
10. Click 'Deactivate' under the 'WordPress.com Stats' plug-in, then click 'Activate' to reactivate it again. This will clear the previous API key.
11. Click the 'WordPress.com Stats' link at the top of the page in a red box to go to the configuration screen.
12. Right-click in the 'API Key' text box and click 'Paste' to paste the new API key.
13. Click the 'Save' button to complete the configuration and change the WordPress API key for your blog.