Object Storage

Object Storage keeps files as objects in buckets and serves them over the S3 API, the interface that Amazon S3 made standard. The AWS CLI, rclone, s3cmd, the AWS SDKs and most backup tools work with it once you give them our endpoint and an access key. You can also upload, download and delete files in the dashboard.

Use it for backups, media, build artefacts, logs and other data that you read and write as whole files. Every bucket is private. Each request needs a signature from one of your access keys, or a presigned URL that you created.

An Object Storage service gives you:

• A storage allowance, set by the plan, and a rate per GB-month for what your buckets hold above it.
• A home region, which you choose when you order. The service's first bucket goes there.
• Up to 25 buckets, in the home region or in any other region that offers Object Storage.
• Access keys that sign S3 requests. Each key is read-only or read-write, and works on one bucket or on every bucket on your account.

Every bucket name on your account starts with your account namespace and a hyphen, such as u7-. The namespace comes from your account, so all your services share it. Bucket names gives the rules.

Each region has its own endpoint, https://s3.<region>.coritan.com:7337, where <region> is the region's code. For Frankfurt, the code is fra and the endpoint is https://s3.fra.coritan.com:7337. A bucket answers at the endpoint of the region you created it in.

Select Object Storage in the dashboard sidebar. The list shows every Object Storage service on your account that has not ended. Each row shows the Service name and plan, the home Region, the Status, how much of the allowance the buckets use under Storage, and the number of Buckets and Keys. Since is the date you ordered it.

• Filter the list with All, Active, Pending or Suspended. Pending covers a service that waits for payment or that we are setting up.
• Type in the search box to find a service by its name, plan or region.
• Select Order Object Storage to open the order page, as Order Object Storage describes.

Select a row to open the service. The header shows its name, status, plan, home region and service number. Order another opens the order page for one more service. The tabs are Overview, Buckets, Access keys and Billing.

A banner above the tabs appears while the service cannot be used in full:

Waiting for payment

The first invoice is unpaid. We set the service up as soon as you pay it. Open invoices lists your invoices.

Setting up

We are creating the service. This takes under a minute. Reload the page to see the result.

Suspended

The service is suspended, usually because an invoice is overdue. Its access keys stop working and its objects stay where they are. You can change buckets and keys again once the service is active. Failed payments and suspended services explains how to lift a suspension.

The Overview tab opens first.

When your buckets hold more than the plan's allowance, a warning such as 12.5 GB above the plan appears at the top of the tab, with the plan's rate per GB-month for storage above the allowance. Its Change plan button opens the Billing tab, where a plan change moves the service to another billing cycle with the same allowance. To get a larger allowance, move to a larger plan as Change the plan describes, or delete what you no longer need.

Storage, Objects, Buckets and Access keys

What the service's buckets hold against the allowance, how many objects they hold, how many buckets the service has out of its limit, and how many keys you created on it. We measure storage and objects every hour, so these figures trail recent uploads and deletions.

Endpoints

One row for each region the service uses, with the endpoint to copy: the home region first, then each other region that holds one of its buckets. Bucket prefix is the prefix every bucket name on your account starts with. Signature says that clients sign requests with AWS Signature Version 4 and that any region string works.

Connect a client

Setup commands for the AWS CLI, rclone and s3cmd, filled in with your endpoint. Replace the placeholders with a key from the Access keys tab. Connect an S3 client explains each setting.

Stored over time

A bar chart of what the service stored over the last 7d, 30d or 90d, from the hourly measurements. The chart shows at most 120 bars, so in a longer window each bar stands for several hours and shows the highest measurement among them. A dashed line marks the plan's allowance. No measurements yet means the chart has nothing to show for that window.

Service

The Plan, the storage it has Included, the rate Above the plan, the Billing cycle, the date it Renews, the Home region, the Namespace, the Bucket limit, what happens After cancellation, and the date it started (Since). Open Billing opens the Billing tab.

Tags

Labels to find the service by, as Tag your services describes.

Set up storage:

• Order Object Storage, and manage the plan on the Billing tab
• Create and delete buckets, the Buckets tab
• Create and revoke access keys, the Access keys tab

Use it:

• Connect an S3 client with the endpoint and a key
• Upload, download and delete objects in the dashboard's object browser, or share a file with a presigned URL

Pay for it and fix problems:

• How Object Storage is billed
• Object Storage limits
• Troubleshoot Object Storage

The public page at https://www.coritan.com/solutions/object-storage describes the product. The order page in the dashboard lists the regions and plans you can actually order.

Each Object Storage service is a service of its own, on the plan and billing cycle you order. The plan's price covers its storage allowance. We measure what your buckets hold every hour, and the plan sets a rate per GB-month for storage above the allowance.

How Object Storage is billed explains how we measure storage and what the dashboard shows when your buckets go above the allowance. Billing covers invoices, credit and payment.

• A service holds up to 25 buckets. There is no fixed limit on access keys.
• A bucket stays in the region you create it in, and you cannot rename it. It answers only at that region's endpoint.
• Clients connect over HTTPS on port 7337 and address buckets in the path, as in https://s3.fra.coritan.com:7337/u7-assets/photo.jpg. Bucket names as hostnames, such as u7-assets.s3.fra.coritan.com, do not resolve.
• We do not offer public buckets, custom domains or versioning.
• A plan change keeps the allowance. To get more storage included, order a larger plan.

Object Storage limits lists every limit.

GET /api/v1/client/object-storage/services lists the Object Storage services on your account that have not ended, newest first, as items with a total.

curl https://api.coritan.com/api/v1/client/object-storage/services \
  -H "Authorization: Bearer $CORITAN_TOKEN"

{
  "items": [
    {
      "id": 1207,
      "service_id": 1207,
      "label": "Object Storage 250 GB",
      "hostname": null,
      "status": "active",
      "product_name": "Object Storage 250 GB",
      "billing_cycle": "monthly",
      "region": "fra",
      "location_id": 1,
      "namespace": "u7",
      "bucket_prefix": "u7-",
      "quota_bytes": 268435456000,
      "used_bytes": 48318382080,
      "object_count": 1284,
      "bucket_count": 2,
      "key_count": 3,
      "overage_per_gb_month": 0.02,
      "created_at": "2026-09-01T10:00:00",
      "next_due_date": "2026-10-01T00:00:00"
    }
  ],
  "total": 1
}

id and service_id hold the same number: the service ID that every other Object Storage request takes. label is the name the dashboard shows, which is the service's hostname when it has one and the plan name otherwise.

region is the home region's code and location_id its location. region is null until setup finishes. bucket_prefix is the namespace with its hyphen.

quota_bytes is the allowance in bytes, where a GB is 1024³ bytes, or null on a plan without one. used_bytes and object_count add up the service's buckets at the last hourly measurement. key_count counts every key on the service, including keys that are turned off. overage_per_gb_month is the plan's rate for each GB-month above the allowance, in US dollars.

GET /api/v1/client/object-storage/{service_id} returns one service with the same fields and these as well:

endpoints

A list of region and endpoint pairs: the home region first, then each other region that holds one of the service's buckets.

overage_gb

How many GB the buckets hold above the allowance, at the last measurement.

grace_days, max_buckets and presign_max_seconds

How many days we keep objects after the service ends, the most buckets the service may hold, and the longest a presigned URL from the API lasts, in seconds. They are 7, 25 and 3600.

A service ID that is not an Object Storage service on your account answers 404 with Object storage service not found.

The Object Storage API reference lists every field.