At a minimum, you need three pieces of information to setup S3-compatible software with the E-Prepared cloud storage service.

  1. Endpoint URL:
  2. Access Key (we generate this for you)
  3. Secret Key (we generate this for you)

S3 Clients

E-Prepared has been successfully tested with the following API-compatible clients:

Product Use Windows macOS Linux iOS Android
CloudBerry Backup S3 client & sync
CrossFTP S3 client
DragonDisk S3 client
S3Anywhere S3 client
S3 Browser S3 client
s3cmd S3 client & sync
SME S3 client, sync, & share
Transmit S3 client

CloudBerry Backup

We recommend CloudBerry Backup for use with E-Prepared because it provides scheduled backups and works with Windows, macOS, and Linux.

Access Key: <Access Key>
Secret Key: <Secret Key>


Protocol: S3/HTTPS
Port: 443
Access Key: <Access Key>
Secret: <Secret Key>


Provider: Other S3 compatible service
Service Endpoint:
Account Name: E-Prepared
Access Key: <Access Key>
Secret Key: <Secret Key>
HTTP Port: 80
HTTPS Port: 443
Connect using SSL/HTTPS: Checked

S3Anywhere (Amazon S3 cloud).

KeyID: <Access Key>
SecretKey: <Secret Key>

S3 Browser

Account Type: S3 Compatible Storage
REST Endpoint:
Access Key ID: <Access Key>
Secret Access Key: <Secret Key>
Use Secure SSL/TLS: Checked


access_key: <Access Key>
host_bucket: %(bucket)
secret_key: <Secret Key>
use_https: True


We recommend SME for use with iOS and Android mobile devices.

Cloud Provider: Ceph
Ceph endpoint host:
Ceph Access Key Id: <Access Key>
Ceph Secret Key: <Secret Key>


Access Key ID: <Access Key>
Secret: <Secret Key>


Once you have connected to E-Prepared, you need to create one or more so-called buckets to upload your files to. The name you give your bucket becomes a subdomain. For example, a bucket named rachel-laptop becomes accessible as Any folders you create get appended to the end of the url, eg.

Because of this subdomain convention, please observe the following naming conventions: