CreateOS Sandbox
Firecracker micro-VMs that give AI agents isolated compute
CreateOS Sandbox is a cloud sandboxing service for agents and developer workloads that need to run code in isolated Firecracker micro-VMs. Developers can provision, control, pause, resume, and destroy sandboxes through a TypeScript SDK, CLI, or MCP, with private networking and configurable outbound access.
Agenticness = how independently a tool can take action, scored across 9 dimensions. Scored independently by David Kooi, Skylark Creations — see full rubric → Last re-evaluated 28 October 2026.
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About
CreateOS Sandbox is agent infrastructure for running code and workloads in isolated Firecracker micro-VMs. Each sandbox has its own Linux kernel and filesystem rather than sharing a host kernel, making it intended for executing untrusted or...
The core value is execution infrastructure, not an AI agent or coding assistant itself: CreateOS Sandbox gives an existing agent a controlled computer to use. Its pause-and-resume design can preserve a running environment across idle periods, which...
Proposes and executes multi-step plans with your approval.
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- Free: 500 free credits to start.
- Usage-based: $0.03616363 per vCPU-hour, $0.01159025 per GiB-RAM-hour, and $0.0001584 per GB-hour of storage; billed per second while running. Egress is $0.
When CreateOS Sandbox changes its pricing, we catch it the next morning
We recrawl every tool in this directory daily. AI Insider is the 3-minute brief on what actually changed — pricing, features, score moves on our 36-point rubric — often before any press coverage. Sent daily. Skipped when nothing happened.