---
title: CheckoutApi
description: |
  
  This API object is provided to extensions registered for the extension points that appear exclusively pre-purchase.

  It extends the [StandardApi](/docs/api/checkout-ui-extensions/apis/standardapi) and provides the write apis for the checkout data.
api_version: 2025-10
api_name: checkout-ui-extensions
source_url:
  html: https://shopify.dev/docs/api/checkout-ui-extensions/latest/apis/checkoutapi
  md: https://shopify.dev/docs/api/checkout-ui-extensions/latest/apis/checkoutapi.md
---

Checkout​Api

Not supported in this version.