Cloud computers for AI agents that keep the whole writable root filesystem, pause compute between tasks and resume on demand, via API, SDKs and CLI.
Code SandboxesNewFree tier listed
Pricing as listed on the vendor site on Oct 21, 2026: free tier $5 free credit for new users, no credit card required; paid from $0.015 per GiB-hour of memory, billed by the second, plus $0.02 per GiB-month retained storage. 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.