To disable certificate verification:

  1. Click the Wrench (A screenshot of the Wrench icon.) icon on the top-right corner of the Postman client.
  2. In the list, select Settings.

    Screen capture of Postman client settings for disabling SSL certificate verification.
  3. In the Settings window, click the SSL certificate verification toggle to disable SSL certificate verification.

    Screen capture of Postman client settings. The SSL certificate verification is highlighted and disabled.