Welcome

Agents run for hours. They fork their paths. They need to remember. Today they get a choice between two bad shapes. Containers and Kubernetes pods are built for one operator. Slow boot. Always-on bill. No fork. No isolation between agents. Ephemeral sandboxes go the other way. Built for one call. No memory. Dies in seconds. The agent loses its work between turns. So every serious team shipping agents builds the missing harness themselves, and pays for it twice. Once to build. Then forever, to maintain. boxd ships persistent computers as a primitive. Three operations. Built on a stack we own from KVM up. ~30ms cold boot. 4 to 100× faster than anything stitched from Firecracker, Kubernetes, and Postgres. Single binary. Zero hyperscaler dependencies. EU-sovereign infrastructure. Same machine model for your dev box, your PR preview, and the sandbox you hand to an agent.

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Cloud dev boxes

A real computer, ready when you are.

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Preview environments

A URL per branch. A URL per PR. A URL per anything.

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Agents on boxd

The cloud computer agents actually want. Full root, persistent disk, a public HTTPS URL, and fork to recover.

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Organizations

One bill, one fleet, one team. Pool machines under an org and share any of them with a single command — with a clean credential handoff every time.

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Integrations

Connect Linear, Slack, and GitHub once. Every personal machine can use them, and the coding agents on board discover them automatically.

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Get started