# Free trial Your first plan starts with a 7-day trial. **A card is required**, and nothing is charged until the trial ends. Then it becomes the $20 Build plan, unless you cancel. ```sh HAREBOX_CONFIG=$(mktemp) harebox login --agent --json ``` | Rule | During the trial | |---|---| | Length | 7 days | | Machine time | 25 hours in total, across all sandboxes | | Running at once | 2 | | Starts | 5 a minute, 25 an hour, 75 a day, with no extra starts | | Sizes | `small` and `default` | | Auto-stop | Required, 2 hours or less | | Templates | You can't save new ones | | Auto top-up | Not until a paid plan | To lift every limit at once, choose a plan: `harebox billing plan build`. That ends the trial and charges the plan now. ## Who gets a trial A person gets one trial. Organizations get none, and pay from the first day. An agent can sign up alone, but its account can't start machines until a person claims it and adds a card. An unclaimed agent account expires after 2 hours. When a trial ends without a card, the account has no plan, and starting a machine returns `billing_required`. In this build, adding a card is a labelled stand-in: it records a card at once and charges nothing.