Many Alexa skills want you to “link accounts.” Often, this involves connecting to your Amazon account via OAuth. Later, you may wish to revoke this access.

Some revocation is at:

• Visit https://www.amazon.com/gp/css/homepage/
• Locat “Login with Amazon” under “Other Accounts” and click it.

Other revocation is at:

• Visit https://www.amazon.com/gp/css/homepage/
• Locate “Apps and more” in the “Digital content and devices” grouping. Click it.
• Note that https://www.amazon.com/gp/mas/your-account/myapps/ref=mas_ya_apps may take you there with a single link.