Hardware-isolated Linux VMs for agents and developers that keep running processes, files and shell state between sessions, with fork, snapshot, pause and hibernate, in boxd's cloud or self-hosted.
Code SandboxesNewFree tier listed
Pricing as listed on the vendor site on Nov 8, 2026: free tier Start with €30 free (boxd cloud); self-host free trial up to 16 vCPUs, no licence key or account; paid from €0.039 per active vCPU-hour, plus €0.012 per active GiB-hour of RAM, billed per second, with free credit to start. Compare code sandboxes pricing.
Get boxd featured in Code Sandboxes for $99/month. You get a labeled featured badge and a top spot in the category. Or claim the listing for free to request edits.
WebAssembly sandboxes for agent code, MCP servers and tools, with no access until you grant it: the free Cosmonic Desktop app (public beta) and Cosmonic Control for Kubernetes. Open source core: CNCF wasmCloud.
Hardware-isolated cloud computers for AI agents, with browser, desktop, shell and file access, pause, resume and forking, via CLI and SDK; Apache-2.0 microVM core you can self-host.