GhostBox – disposable little machines from the Global Free Tier.

GhostBox is a new tool from the Global Free Tier project that lets you instantly borrow temporary, disposable Linux machines for any workload. Instead of running risky or messy tasks on your personal laptop, you SSH into a ghost – a lightweight virtual machine sourced from spare compute across the internet, starting with GitHub Actions runners. The CLI or a simple curl command installs the client, and within seconds you have a full shell, network access, and the ability to expose web apps without touching DNS. The machine is designed to be ephemeral: clone a repo, run a weird build, give an AI agent a real environment, or test a preview – then simply walk away. The machine expires automatically, leaving no trace behind.

The project emphasizes security and isolation for AI agents. Instead of letting an agent work directly on your local machine, GhostBox provisions a dedicated, locked-down environment where the agent can access only the secrets and resources it needs for that specific job. Logs, sessions, and cleanup are centralized, and the machine is returned to the pool when the work is done. The Global Free Tier plans to expand beyond GitHub Actions to include other sources of temporary compute (e.g., cloud function cold starts, spot instances), effectively creating a global, decentralized grid of disposable machines. Users never have to manage infrastructure or worry about leftover resources – every ghost returns to the cloud, fitting the project's motto: 'All energy is borrowed, one day you have to give it back.'