# boxd

> Instant remote computers. Persistent, forkable cloud VMs with sub-millisecond resume.

boxd gives developers and AI agents their own persistent Linux machines accessible via SSH. No SDK required — if it can open an SSH connection, it can use boxd.

## Quick start

```
ssh boxd.sh
```

## Links

- Website: https://boxd.sh
- Documentation: https://docs.boxd.sh
- Blog: https://boxd.sh/blog
- Pricing: https://boxd.sh/pricing
- Contact: https://boxd.sh/contact
- Full LLM context: https://boxd.sh/llms-full.txt

## Blog articles

- https://boxd.sh/blog — Cloud computers, instantly (overview)
- https://boxd.sh/blog/usecase/dev-environments — Dev Environments deep dive
- https://boxd.sh/blog/usecase/background-agents — Background Agents deep dive
- https://boxd.sh/blog/architecture/how-boxd-works — How boxd works (architecture)

## Key features

- Persistent state: files, packages, databases survive across sessions and disconnects
- Instant forking: clone a full machine (memory, disk, processes) in under 60ms
- SSH-first interface: every command works programmatically via `ssh boxd.sh <command> --json`
- Always-on: machines keep running after you disconnect
- Automatic HTTPS URLs: every machine gets a public URL, certs and DNS handled automatically
- KVM isolation: every machine runs its own kernel — real hardware-level isolation, not containers
- Scale to zero: machines sleep when idle, resume in under 1ms
- Self-hostable: run on your own infrastructure, any KVM-capable server
- Pre-installed tools: Claude Code, Docker, Python 3, Go, Node, headless Chrome, ffmpeg, git

## Specs

- Ubuntu 24.04 (full, unminimized)
- 2 vCPU, 8 GB RAM, 25 GB disk per machine
- Cold boot: <200ms
- Resume from sleep: <1ms
- Fork time: <60ms

## Pricing

- Developer: EUR 5/month — 10 concurrent VMs, unlimited runtime, all features included
- Teams: custom pricing
- First month free, no credit card required

## Architecture

Custom Rust VMM built on KVM. No Firecracker, no Docker, no external dependencies. Raft consensus for coordination. European hosting by default.

## Built by

Azin (https://azin.run)