open-source · firecracker microVMs
Sandboxes in a blink.
Isolated microVMs for AI agents — boot in 49ms, fork mid-execution, snapshot in seconds. Your cloud or ours.
pandastack — zsh
$ pip install pandastack
$ python
>>> sb = Sandbox(template="code-interpreter")
✓ sandbox ready in 49ms
>>> sb.run("print(2 + 2)").stdout
4▍49ms
p50 create
80ms
snapshot restore
400ms
same-host fork
Create. Snapshot. Fork ×N.
Every create restores a baked snapshot — memory and disk are copy-on-write, so forks share state until they diverge.
Built for agents that do real work
Fast cold starts
Snapshot-restore on every create + reflink CoW rootfs. Real KVM microVMs — hypervisor isolation, not containers.
Fork mid-execution
Pause a running VM, fork it 10× from the same memory state. Parallel exploration without re-running setup.
5 first-party templates
base, code-interpreter, agent, browser, postgres-16 — all pre-baked. Build your own from any Dockerfile.
Python · TypeScript · CLI
First-class SDKs. SSE streaming exec, PTY over WebSocket, filesystem API, managed Postgres, app hosting.