Terms of Service

Shells provides isolated cloud sandboxes — created, controlled, and destroyed by you through the console, the API and SDK, or the MCP server. We operate the infrastructure; the workloads, and the choice of isolation class for them, are yours.

You are responsible for what happens under your account and for the agents you grant the shells.agent.invoke entitlement. Keep credentials confidential — term credentials expire in minutes by design, so re-mint rather than store.

Sandboxes exist so risky code can run safely — bring your fuzzing, your untrusted dependencies, your half-finished agents. What you may not bring:

attacks on systems you don't own or lack permission to test; malware distribution or command-and-control; cryptocurrency mining; spam or abuse infrastructure; content that is illegal where you or we operate; and attempts to break the isolation boundary itself, outside of coordinated disclosure to security@shells.sh.

Paid plans bill a platform fee plus per-second runtime at the published rates by isolation class. Metering starts when a session starts. Lifecycle actions are free on every plan. Unpaid balances may lead to suspension after notice; your data handling on closure follows the Privacy Policy.

Code and data you run in shells remain yours. You grant us only the rights needed to execute and store them as directed by you. We do not train models on your sandbox contents.

We aim for boring reliability but the service is provided as is, without warranty of uninterrupted availability. Free-tier shells idle out and are wiped after a grace period. We may change features with notice in the changelog; material reductions to paid plans get advance email notice.

To the maximum extent permitted by law, our aggregate liability is capped at the amounts you paid us in the twelve months before the claim, and neither side is liable for indirect or consequential damages. Nothing here limits liability that cannot lawfully be limited.

You can stop using Shells at any time — wipe your shells and walk away, nothing lingers. We may suspend or terminate accounts that violate these terms, with notice unless the violation is actively harming others.

Questions about these terms go to legal@shells.sh. These terms are the entire agreement for the service unless your organization has signed an enterprise agreement, which then prevails.