---
api_version: 2023-07
api_name: checkout-ui-extensions
source_url:
  html: https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis
  md: https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis.md
---

# APIs

[Cart​Line​Item​Api](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/cartlineitemapi)

[This API object is provided to extensions registered for the `purchase.cart-line-item.line-components.render`, `purchase.checkout.cart-line-item.render-after`, `purchase.thank-you.cart-line-item.render-after`, and `customer-account.order-status.cart-line-item.render-after` extension targets. It extends the StandardApi and provides the target cart line item associated with the extension.](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/cartlineitemapi)

[Checkout​Api](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/checkoutapi)

[This API object is provided to extensions registered for the extension targets that appear exclusively pre-purchase. It extends the StandardApi and provides the write apis for the checkout data.](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/checkoutapi)

[Extension​Targets](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/extensiontargets)

[A target represents where your checkout UI extension will appear. You register for targets in your configuration file, and you include a JavaScript function that will run at that location in checkout. The API for each extension target is passed as an argument to your function. While all targets inherit the `StandardApi`, not all of them share the same properties and methods. For example, the `purchase.checkout.cart-line-item.render-after` target has access to the `CheckoutApi` to modify a checkout, but the `purchase.thank-you.cart-line-item.render-after` target does not.](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/extensiontargets)

[Order​Status​Api](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/orderstatusapi)

[This API object is provided to extensions registered for the extension targets that appear exclusively on the **Order status** page. It extends the StandardApi and provides access to an order object.](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/orderstatusapi)

[Pickup​Location​List​Api](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/pickuplocationlistapi)

[This API object is provided to extensions registered for the `purchase.checkout.pickup-location-list.render-before` or `purchase.checkout.pickup-location-list.render-after` extension targets. It extends the `StandardApi` and provides a `isLocationFormVisible` boolean to indicate whether the customer location input form is currently rendered and shown to the buyer.](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/pickuplocationlistapi)

[Pickup​Point​List​Api](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/pickuppointlistapi)

[This API object is provided to extensions registered for the `purchase.checkout.pickup-point-list.render-before` or `purchase.checkout.pickup-point-list.render-after` extension targets. It extends the `StandardApi` and provides a `isLocationFormVisible` boolean to indicate whether the customer location input form is currently rendered and shown to the buyer.](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/pickuppointlistapi)

[Shipping​Option​Item​Api](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/shippingoptionitemapi)

[This API object is provided to extensions registered for the `purchase.checkout.shipping-option-item.render-after` or `purchase.checkout.shipping-option-item.details.render` extension targets. It extends the `StandardApi`, provides a `target` object with information about the shipping method the extension is attached to, and a `isTargetSelected` boolean indicating whether the shipping method is currently selected in the UI.](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/shippingoptionitemapi)

[Standard​Api](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/standardapi)

[This base API object is provided to all extension targets.](https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/apis/standardapi)