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Linux microVM sandboxes are deprecated. This capability is being retired and is no longer available to new organizations. iOS simulators, Android emulators, and Xcode builds are unaffected. Existing sandbox workloads continue to run during the deprecation window; plan migration off runcloud sandbox and cloud.sandboxes before the capability is removed.
Fast, disposable, stateful compute: spawn a sandbox in well under a second, run untrusted code, snapshot the filesystem, fork it, and come back to it later. Metered per second of runtime.

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Start here

  • Quickstart — authenticate and create your first machine.
  • Limits — organization-wide capacity and billing defaults, and how to request an increase.
  • Linux sandboxes — Deprecated: Firecracker microVMs for untrusted code, builds, and agents. Default 0.125 vCPU / 128 MiB, billed per second.
  • CI — Deprecated: GitHub Checks on sandboxes (runs-on: runcloud), without GitHub Actions minutes.
  • iOS simulators — remote simulator sessions for previews and tests.
  • Android emulators — remote emulator sessions.
  • Simulator controls — acknowledged touch, text, key, button, screenshot, screen-recording, and device operations for iOS and Android.
  • Access Control and Metering — how usage is billed.
  • CLI Reference — commands and options in the latest CLI.
  • TypeScript SDK Reference — classes, methods, and response types.
Everything is reachable three ways: the runcloud CLI, the TypeScript SDK, and the HTTP API.