Linux sandboxes for agent code, each a Firecracker microVM, billed on active CPU, with pause, forks, snapshots, custom images, an MCP server and SDKs.
Code SandboxesNewFree tier listed
Pricing as listed on the vendor site on Oct 26, 2026: free tier 100 free hours of a 1 GB machine (100 GiB-hours of memory and 25 vCPU-hours of active CPU) in the first 30 days, no card; paid from $0.025 per active vCPU-hour, plus $0.0075 per reserved GiB-hour of memory, no plan fee. Compare code sandboxes pricing.
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.