| Yes. The Frontend SDK is required for Appcharge Checkout. There is no redirect-only or SDK-free path for Checkout. If you want a link-based flow, use Payment Links instead. |
What the SDK does
The SDK renders the checkout experience inside your web store, manages the session lifecycle, and emits events (onOrderCreated, onPaymentIntentSuccess, onOrderCompletedSuccessfully, etc.) for post-purchase flows and analytics.
Why it is required
There is no supported way to embed checkout without the SDK. Calling Create Checkout Session directly without the SDK provides a checkout URL but no client-side event handling, error recovery, or session management.
Installation
Please refer to the doc Integrate the SDK
Prefer a link-based flow?
Payment Links is a separate product that does not require the Frontend SDK.
Resources