How to retrieve device/storage information from api v2?

We are building a plugin that needs access to device specific data (e.g. backup status, total size of backups, etc). When logged into the Acronis Backup Cloud, I can see that the following endpoints are called to retrieve this information:

• /bc/api/resource_manager/v1/epm/resources/get_license
• /bc/api/vault_manager/v1/stats?resourceId=<resource-id>&storageType=online
• /bc/api/ams/resources

Is this information available in v2? If not, what authentication method should I use to access the above endpoints? I'm not able to authenticate using a OAuth token, which works in v2.