You can manage your Dropbox Sign API apps, including testing callback URLs and edit app information, from within your Dropbox Sign account. To do this:
- Log in to sign.dropbox.com.
- Click your avatar (profile picture or initials) in the upper right corner.
- Click Settings.
- Click the API tab on the right to access the following sections:
- API apps: Create new apps, or view and edit each individual app’s information.
- API keys: Manage and create keys to authenticate with the API.
- Account callback: Generate callback URLs to receive notifications for signature requests.