Hosted by design
Sensitive payment UI remains in an Inttegro-controlled surface while the merchant controls how Checkout enters its experience.
Inttegro JS
One checkout runtime for every web surface.
01
The project
Inttegro JS is the host-side runtime for presenting Checkout on the web. It owns the boundary between an integrating site and Inttegro's hosted payment surface, including modal and embedded presentation.
The core package and framework adapters expose the same checkout lifecycle, event payloads and appearance controls. Integrators can choose their framework without choosing a different payment contract.
02
What it owns
One lifecycle
Modal and embedded checkouts report the same meaningful order and payment outcomes to every supported framework.
Small host API
The integration surface stays focused on mounting, appearance, lifecycle events and teardown rather than reproducing Checkout.