Totango
Create a personal access/app token
- From within Totango, click your profile icon and choose Edit Profile.
 - From the Integration tab, click Create Token.
 - In the New Token Details window, enter the following details: 
- Token Name: Choose a name to identify the token among others within your profile.
 - Expiration Time: Choose from 7, 30 60, 90 days, no expiration, custom
 
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A token is available to copy and paste directly into the third-party system.

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Click Close.
The token is available to edit (name and expiration) or delete if you need to revoke access.
 
Video Tutorial
 Here is a recording of Totango and Cast.app, recorded for customer HPE: