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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 — Firecracker microVMs for untrusted code, builds, and agents. Default 0.125 vCPU / 128 MiB, billed per second.
  • CI — 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.