# Fly.io Machines

> Fly.io Machines are hardware-virtualized Firecracker microVMs that boot in under a second and can suspend and resume, spanning more than 18 regions; Fly also ships Sprites, a persistent checkpoint/restore product aimed at agents.

Firecracker microVMs with suspend/resume across 18+ regions.

- **Category:** Execution Sandbox
- **License:** Proprietary (platform); flyctl CLI is Apache-2.0
- **Language:** Go
- **Self-hosted:** No
- **GitHub stars:** 1717 (2026-10-04)
- **Repository:** https://github.com/superfly/flyctl
- **Last verified:** 2026-10-04

> Caveat: Managed-only; the platform is proprietary and flyctl (the CLI) is Apache-2.0.

Source: https://agent.c8.fit/tools/fly-machines/