A real Linux server. Running in seconds.
A Cube is a Firecracker microVM with its own kernel — fast, secure and isolated by design. Pick any vCPU, RAM and disk, get full root access, and pay only for the minutes it runs.
spin one up from the CLIkrova cubes create web-1 \ --cpu 2 --ram 4 --disk 40 \ --image ubuntu-24.04…or the same thing in one API callcurl -X POST \ https://krova.cloud/api/v1/spaces/$SPACE/cubes \ -H "X-API-KEY: $KROVA_KEY" \ -d '{ "name": "web-1", "resources": { "vcpu": 2, "ramGb": 4, "diskGb": 40 } }'One Cube, any size
These are popular starting points — but you're never boxed into a plan. Dial in any vCPU, RAM and disk you like and the price follows. Every GB is reserved 1:1 on the host, never oversold.
Monthly figures assume a Cube running 24×7. Billing is by the minute — power off a Cube and compute charges stop instantly. Up to 69% less than comparable plans on Lightsail, DigitalOcean, Vultr and Linode.
Run any code, fearlessly
Every Cube boots its own kernel behind a per-cube sandbox — so a workload runs on its own, never sharing a kernel with anyone else's. That's the freedom to run the things a shared box can't.
Everything around your Cube, handled
Cube is the primitive. Krova Cloud is the platform that makes it effortless to run.
Domains & automatic HTTPS
Point a domain with one CNAME and get HTTPS automatically — certificates issued and renewed for you, no config.
Snapshots & backups
Automatic snapshots with no downtime, one-click restore, and clone or export any snapshot — your Cube is a file you can take with you.
Power off & start
Power off a Cube to stop compute billing instantly, and start it again in seconds. It auto powers off when credit runs out.
Full API & tooling
Drive the whole lifecycle from a typed SDK, a CLI, an MCP server and a public REST API — every one open-source.
Frequently asked questions
How fast does a Cube boot?
In seconds. A Cube is a Firecracker microVM, not a full virtual machine that spends minutes booting — you ask for it, and it is ready to use in seconds.
What can I run on a Cube?
Anything that runs on Linux. You get full root access, systemd, your own kernel modules, Docker, any package manager — no restrictions on what you install or run.
Can I resize a Cube later?
Yes. Grow RAM and disk live with no downtime; change vCPU with a quick restart. Start small and scale the exact Cube up as your app grows.
How am I billed?
By the minute, and only while a Cube is running. Power it off and compute charges stop instantly. There's no subscription — you top up prepaid credit as you go. Signing up is free. Claim $5 in free credit — one-time, per account, and nothing is charged for it.
Launch your first Cube
Create a free account and you'll be SSH'd into your own Cube in under a minute. Claim $5 in free credit — one-time, per account, and nothing is charged for it.