Checkout Kit Developer Preview

[krishkumar-lang]

Checkout Kit is an open-source SDK for embedding Shopify checkout across Web, iOS, Android, and React Native, now built on the Embedded Checkout Protocol (ECP). We're opening the developer preview today and would like your feedback ahead of GA.

Repo: Shopify/checkout-kit

Platforms

Platform	SDK	Min Version
iOS	ShopifyCheckoutKit · ShopifyAcceleratedCheckouts	iOS 13.0, Swift 5.7
Android	com.shopify:checkout-kit	Java 11, Android SDK 23
React Native	@shopify/checkout-kit-react-native	React Native 0.70
Web	@shopify/checkout-kit	Evergreen Chromium, Firefox, WebKit (Safari 16.4+)

Coming from Checkout Sheet Kit?

Checkout Kit is the successor to Checkout Sheet Kit (Swift, Android, React Native). It adds a Web SDK, unifies the SDK surface across platforms, and moves the transport to the Embedded Checkout Protocol. A migration guide will be published at GA.

Roadmap

Milestone	Target
Checkout Kit for Web (popup only)	Shipped
Stable release: Swift, Kotlin, React Native, Web SDKs	June 2026
Preload support	June 2026
Web pixel firing direct to providers (instead of checkoutDidEmitWebPixel)	June 2026
Customer data in lifecycle events (requires authentication)	Q3 2026
Bypassing password protection on mobile	Q3 2026
Checkout Kit for Web (iframe)	TBD
Additional branding and checkout customizations	Q4 2026

References

• Embedded Checkout Protocol reference
• Cart MCP
• Monitor orders

---

This is a developer preview — APIs and timelines may change. We'd appreciate your feedback on what's working, what's missing, and what should ship sooner. Reply in this thread or open an issue in the repo.