Credits
FireGuard tracks your usage through credits. Each request to FireGuard costs credits, both through the Guardrails API or through the Sandbox (accessible by clicking on the Try it out button at the top right of the Project Settings page).
You can buy credits in the Organization Settings page in the Plan tab. You have the choice of either buying a Subscription (a number of requests you have access to each month, paid at the beginning of the month) or buying Extra Credits (which never expire and can be reused from month to month).
You can see your credits balance in the Organization Settings page in the Usage tab.
note
Your first default organization starts with 500 free credits (only one per account).