Prepaid credits with auto-refill
Sell credit packs, deduct usage from your app through the API, and refill buyers from their saved card before they run out.
See credits

Sell prepaid credit packs that top up on their own, monthly plans, or both. Your app deducts usage through the API and hears about every payment by webhook, with the checkout inside your app and tax and payouts handled.


Every one of these is a product or a plan in the same dashboard, on the same checkout and payout. Names and prices are examples.
A prepaid balance your app spends as people use it.
Captionly AI credits$25
The balance tops itself up from the saved card when it runs low.
Refill $25 at $2 left$25
A subscription with a free trial at checkout.
Captionly Pro$29 / month
Charge per unit your app reports, on Pro.
Image renders$0.04 / render
One plan, billed per seat, on Pro.
Studio plan$12 / seat
A plan for developers who call your model directly.
Captionly API$99 / month
Five of the features AI apps use most, each shown in the real dashboard. The rest are on the features page.
Sell credit packs, deduct usage from your app through the API, and refill buyers from their saved card before they run out.
See credits


Open the checkout in a popup or embed it in a page of your product. Buyers never leave your app to pay.
See checkout pages

Monthly or yearly plans with a free trial, and seats or metered usage on Pro, all on one subscription.
See SaaS billing

Every payment, refund, top-up and subscription change, signed with HMAC-SHA256, with a log of each delivery.
See the webhook docs

Claude, Cursor or Codex create the credit packs, checkouts and webhooks over MCP. Sign in, click Allow, no API key.
See MCPLaunch a product, put on a sale or email your list from Claude, ChatGPT or your terminal. Every change shows up in your dashboard.
Connect your AICreate a $29 presets pack and give me the checkout link.
Done. Portra 400 Preset Pack is live at $29, and the checkout link is ready.
Real asks and the real tools they run. The account is Inês Duarte's, one of our demo creators.
An example, not a promise: $25 credit packs, 300 a month, 55% abroad. Run through the same published fees as our fee calculator, checked November 2, 2026.
The example
On Pocketsflow
You keep $7,057.50 of $7,500.00.
4.7% + $0.30 per sale, card processing and tax handling included. No monthly fee. Sales tax and VAT are handled for you.
vs Gumroad, Lemon Squeezy and Payhip
That is $765.00 more than on Gumroad, $144.38 more than on Lemon Squeezy and $301.88 more than on Payhip.
Comparing with a flat monthly plan like Stan or Kajabi? See the full breakdown.
Published fees for a seller in the US, with card processing added where a platform charges it separately. Gumroad, Lemon Squeezy and Payhip are trademarks of their owners, named only to compare published prices.
See how Pocketsflow compares, and how your products, customers and email list come with you.
Read the balance and deduct usage through the API, from your own backend. Every change to a balance also reaches you as a webhook, so your app and Pocketsflow never disagree.
Yes. Turn on auto-refill and the buyer opts in at checkout. When the balance runs low, we charge their saved card for the refill amount you set and add the credits.
Yes. Sell a monthly plan for access and credit packs for heavy use, or charge per unit with usage billing on Pro. Each one is its own product your app reads by webhook.
Yes. Open it in a popup over any page, or embed it in a page of your product, so buyers pay without leaving. A hosted checkout link works too.
No monthly fee to sell. Each sale carries one transaction cost, 4.7% + $0.30 estimated (about $1.48 on a $25 sale), covering the platform, card processing, sales tax and VAT handling and dispute prevention, itemized on every order. In the worked example on this page, you keep $765.00 more a month than on Gumroad, $144.38 more a month than on Lemon Squeezy and $301.88 more a month than on Payhip. Selling $50,000 or more a month? The Volume plans lower the platform fee to 1% or 0.5%.
No monthly fee to sell, tax handled, and the AI you already use can set it up with you.