Administrator access to your Buto account, and Superuser access to CaptionHub.
- Click on the Settings link at the top right, next to your email address
- At the bottom of the My Settings tab, you'll see the following section
- Highlight and copy the API key
- Navigate to Team Settings, and click on the Integrations tab
- Paste the Buto API key into the API key field
- Click on the the Update button