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AI credits power the Hercules App Builder Agent. You use AI credits every time you talk to Hercules to build your app. Your plan includes a monthly AI credit allocation. You can buy more at any time.
Get more AI Credits dialog with amount options

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How do I get more AI credits?

Click the “Buy AI credits” button in the top right of the Hercules platform to purchase more AI credits. The way you purchase AI credits differs depending on when you signed up.
Buy AI Credits button
Every plan includes some number of AI credits. Some plans let you increase the AI credits included in your plan. To get more credits, simply change your credit tier in the plan selector.
1

Pick your credit tier

Select the number of AI credits you want each month.
AI credit tier selector
2

Review your purchase

Review the checkout and complete the transaction.
Your plan (such as Pro or Business) stays the same, so you keep all its features. You pay the prorated difference and receive the prorated credits right away. Plan credits expire 28-31 days after they are granted.
Add-on AI credits are a monthly subscription just for AI credits, separate from your plan.You must top up a minimum of $25. You can then choose from one of the predefined options or a custom amount per month. The credits are added on top of the credits included in your plan.You can manage your Add-on AI credit subscription from Settings → Billing → AI Credits, or click here.Add-on credits expire 28-31 days after each grant.
Add-on AI credit amount selector
Your monthly grants show the plan and add-on credits separately.
Monthly credit grants showing plan and add-on totals
Hercules offers discounts on large volume credit purchases. These credits are called “one-time” credits and expire after 12 months. If you are interested, please reach out to sales@hercules.app with how many credits you would like to purchase.

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How do I set up AI credit auto-reloads?

Auto-reload tops up your AI credits before a running Agent reaches a zero balance, so your builds do not stop mid-run. Go to Settings → Billing → AI Credits then click “Set up” to get started.
AI credits panel with auto-reload set up option

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How do I change my AI credits subscription?

You can lower your recurring AI credit costs depending on how you buy credits. Credits already granted stay valid until they expire.
If your plan allows credit tiers, lower your plan’s AI credit tier in the plan selector. Your plan and its features stay the same. Your downgrade will be scheduled for the end of your current billing cycle.
Lower or cancel your add-on at any time at Settings → Billing → AI Credits. Reduce the monthly amount or cancel it entirely. Changes apply from your next billing cycle.

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Are bug fixes free?

Yes! Hercules fixes uncaught exceptions for free. All Hercules App Builder Agent runs started by clicking the Fix the bugs button in the bottom right of the App Builder are free. Other bug fixes and error resolution still cost AI credits.

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Additional FAQ

Every app is different, so we cannot provide estimates. No app builder can. We recommend building your app in small increments and monitoring your AI credit usage as you go. This is the best way to understand how AI credits work for your specific use case.
You configure the threshold balance (the AI credit balance at which you should auto reload more credits) and then credit top-up amount (how many more credits you want to automatically purchase).AI credit auto-reloads are available on paid plans with a saved payment method. The default threshold is 10 remaining credits. You can choose a whole-number threshold from 1 to 100 credits.For reloads on plans, Hercules tops up one step at a time and charges the prorated difference. For reloads on AI credit add-ons, Hercules adds the USD amount you have configured.If a top-up fails, Hercules keeps auto-reload enabled and retries after one hour. Auto-reload pauses while a subscription downgrade is scheduledYou can configure a spend maximum. When you reach the highest available amount, auto-reload stays enabled but cannot top up again
Some plans include bonus AI credits, granted as a promotional match on your first credit purchases. They are marked in the UI when they apply. Not all plans offer bonus credits.
Go to Settings → Billing → AI Credits to see:
  • Current AI credit balance
  • Usage breakdown by category
  • Invoice history
AI usage breakdown
Go to Settings → Billing → AI Credits → Grants and click the three-dot menu to transfer credits. Both organizations must be on a paid plan, only plan and purchased credits can move (not bonus, referral, or admin-granted credits), and transferred credits keep their original expiry date.
We rarely give refunds for AI credits. AI credits cost us real money to provide (we pay AI model providers like OpenAI and Anthropic). We charge for AI credits to cover our costs and keep Hercules sustainable. We are always happy to help you resolve issues and reduce AI credit usage. We occasionally offer additional AI credit grants. Click Support & feedback with details and we will do our best to help.
Your app stays hosted and published. You will not be able to use Hercules AI until you purchase more AI credits or wait for more AI credits to be granted at the start of your next billing cycle.
Your existing AI credits stay valid for as long as the grant is valid. They do not immediately expire when you downgrade.