Web SDK

The official Plexy client-side SDK for the browser. Build a full Drop-in checkout or compose individual payment Components in any web app, including React and Next.js. Works with either the Sessions flow (recommended) or the Advanced flow.

Requirements

Latest two versions of Chrome, Firefox, Safari, and Edge

Plexy Checkout API v2 or later

Node.js 18 or later for your server code

Installation

Copy install command: npm install @plexy/plexy-web

Import the default stylesheet once in your app (for example in the root layout):

Imports

The package ships two entry points:

@plexy/plexy-web (recommended): tree-shakable. Import only the components you use.

@plexy/plexy-web/auto: pre-registers every payment-method component. Simpler to start with but ships a larger bundle.

All examples below use the tree-shakable entry.

Browser Support

The SDK supports the latest two versions of Chrome, Firefox, Safari, and Edge. Internet Explorer is not supported.

Next steps

Drop-in

Mount the pre-built Plexy checkout UI in your web app

Components

Embed individual payment components for a fully custom flow

Customization

Theme the checkout, override per-method appearance, and customize the flow

Installation#

Imports#

Browser Support#

Next steps#

Installation

Imports

Browser Support

Next steps