Deploy apps to Cubes. Boot 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 SSH, and pay only for the minutes it runs.
# spin one up from the CLI
krova cubes create web-1 \
--cpu 2 --ram 4 --disk 40 --image ubuntu-24.04
# …or with a single API call
curl -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 — sleep 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.
Run your users' code safely
Ship a product that runs your users' code. Each job gets its own kernel and sandbox, so one tenant's workload can never reach another's.
Sandboxes for AI agents
Give every AI agent its own disposable computer — full root, a real filesystem, and a network you control. Spin it up, let it work, throw it away.
Ephemeral CI & dev environments
Boot a clean environment in seconds, run the build or test, and tear it down. No shared runners, no state left behind between jobs.
Everything around your Cube, handled
The 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
Live snapshots with no downtime, instant restore, and a backup before every delete so nothing is ever gone by accident.
Sleep & wake
Pause a Cube to stop compute billing instantly, and wake it in under a second. It auto-sleeps 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.
The quick answers
How fast does a Cube boot?
Under a second. A Cube is a Firecracker microVM, not a full virtual machine that spends minutes booting — it's ready almost the moment you ask for it.
What can I run on a Cube?
Anything that runs on Linux. You get full root SSH, 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 awake. Sleep it and compute charges stop instantly. There's no subscription — you top up prepaid credit, and your first $5 top-up doubles to $10 (one-time).
Launch your first Cube
Create a free account and you'll be SSH'd into your own Cube in under a minute. Your first $5 top-up doubles to $10 in credit — one-time.