No code
Checkout plugins
For stores built on Shopify, Magento 2 or WordPress / WooCommerce.
- Install and configure from your store admin
- Switch to the sandbox from the plugin settings
- Orders appear in your store admin as normal
Snap Finance UK for developers
Add Snap Finance to your checkout in minutes
Offer Snap Finance at checkout with a drop-in JavaScript SDK, REST APIs for decisioning and order status, webhooks for real-time updates, or ready-made plugins for Shopify, Magento and WordPress.
- Production-grade sandbox
- Postman collection
- Release notes
checkout.html
<!-- 1. Load the SDK in your <head> -->
<script
src="https://sandbox-sdk.snapfinance.co.uk/v1/snapuk.min.js"
></script>
<!-- 2. Add a container for the button -->
<div id="snap-uk-checkout"></div>
<!-- 3. Initialise Snap and render checkout -->
<script>
snapuk.init(clientId);
snapuk.checkout.button({
merchantId: merchantId,
transaction: transaction,
onApproved: (applicationId, token) => {
// Call your backend.
// Verify from there with the Status API.
// Then update the order
},
});
</script>Choose your integration
Three ways to integrate
Pick the route that fits how your store is built. Every option uses the same sandbox and the same application journey.
Shopify
Magento 2
WordPressLow code
JavaScript SDK
For custom storefronts where you control the checkout page, with the Status API and webhooks to keep your orders in sync.
- One script tag and a container element
- Checkout button with lifecycle callbacks
- Status API: verify each application from your backend
- Webhooks: get every status change pushed to your server
- Optional RBP and BNPL product widgets
Full control
Partner API
For embedding Snap decisioning in your own application journey.
- Real-time decisioning in your own app
- Cancel, refund, fulfil and amend from your backend
- Try requests in the docs or import into Postman
Quickstart
From sandbox to live in four steps
Every integration follows the same path: build against the sandbox, test the full journey, then switch to production.
Get sandbox credentials
Your Snap Finance account manager will issue sandbox credentials, such as your Client ID and Merchant ID.
Build your integration
Pick a plugin, the SDK or the Partner API and point it at the sandbox environment.
Choose an integrationTest the full journey
Run test applications with decisioning controls. The sandbox uses the same decisioning engine as production.
Sandbox testing guideGo live
Swap sandbox URLs and credentials for production ones, then take your first live order.
Changelog
Latest updates
New features, integration changes and releases from the Snap Finance team.
Webhooks: real-time order updates for every store
Get notified the moment an application at your store changes status. Set it up yourself from the Merchant Portal.
Read post
Lights off: dark mode is here, Partner API docs included
The developer site now has a dark theme. It follows your system setting, remembers your choice and covers every page, and AI helped us build it in a matter of hours.
Read post
Try Partner API requests from the docs, or import them into Postman
The Partner API reference now lets you send real sandbox requests from the page, and download a ready-made Postman collection.
Read post