Agent Sandboxes
The fastest agent sandboxes with real isolation.
A 50ms cold boot on KVM, hosted in the EU.
Speed
Boot in 50ms, fork fifty in parallel.
A full VM boots in 50ms and resumes from sleep in 8ms. Forking a running machine takes milliseconds, so you can run fifty in parallel before another platform has finished provisioning one.
Real isolation
Every sandbox runs its own kernel.
Every sandbox is a real KVM virtual machine with its own kernel. Agents get root inside it and can modify anything, but they cannot reach the host or other sandboxes. Container sandboxes share a kernel across tenants, so one kernel bug compromises every sandbox on the host.
Sovereignty
Host it in Europe, or host it yourself.
boxd infrastructure runs in European data centers, beyond reach of US subpoenas. You can also run the same binary on your own metal, where nothing leaves your network at all.
boxd vs. the other agent sandboxes
Related use cases
Stop running agents on slow infrastructure.
Talk to us about your team's setup, or boot a sandbox yourself with one SSH command.
read the docs · see pricing · ssh boxd.sh