---
title: useApi()
description: |-
  Returns the full API object that was passed in to your extension when it was created. Depending on the extension target, this object can contain different properties.

  For example, the `purchase.checkout.cart-line-item.render-after` extension target will return the [CartLineDetailsApi](/docs/api/checkout-ui-extensions/apis/cartlinedetailsapi) object. Other targets may only have access to the [StandardApi](/docs/api/checkout-ui-extensions/apis/standardapi) object, which contains a basic set of properties about the checkout.

  For a full list of the API available to each extension target, see the [ExtensionTargets type](/docs/api/checkout-ui-extensions/apis/extensiontargets).
api_version: 2026-04
api_name: checkout-ui-extensions
source_url:
  html: https://shopify.dev/docs/api/checkout-ui-extensions/latest/apis/useapi()
  md: https://shopify.dev/docs/api/checkout-ui-extensions/latest/apis/useapi().md
---

use​Api()

Not supported in this version.