Manage billing and credits
Choose a plan, understand per-message credit costs, top up, and avoid service interruptions.
AgentStack bills AI work in integer credits. One credit costs $0.02. A $20 top-up adds 1,000 credits. New Free workspaces start with 50 credits.
Understand usage
Each successful AI response deducts the cost set for the selected model. Costs vary by model. For example, GPT-5.2 uses 2 credits, GPT-4.1 Nano uses 1 credit, and Claude Opus 4.6 uses 5 credits. Model costs can change. The model picker and billing screen show the current cost for each model.
AgentStack also deducts credits for AI replies across the widget, REST chat, Slack, email, Inbox assistance, and voice. When AgentStack cannot deliver a response, it can refund the failed request.
Upgrade or manage a subscription
Open workspace Pricing to compare plans and start checkout. Paid plans unlock REST API access. Inbox is available on the Standard, Pro, and Enterprise plans. Use Manage subscription for invoices, payment methods, or cancellation.
Add credits
Open the billing area. Choose a top-up. Complete the payment. After Stripe confirms the payment, the balance updates.
Enable auto top-up. If the balance falls below your chosen threshold, auto top-up adds credits. Keep a valid payment method on file. Choose a threshold that is high enough for your normal traffic.
Avoid interruptions
- After you change to a higher-cost model, watch the workspace balance.
- Before a launch or campaign, test auto top-up.
- Remember that usage is organization-wide across agents and channels.
- If a paid feature is unavailable, confirm both the plan tier and the subscription status.