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## Stored instruments manifest and payments service URL in the GraphQL Storefront API

The `site.storedInstrumentsManifest` and `site.settings.url.paymentBaseUrl` fields are now documented in the GraphQL Storefront API guides. They supply the client-side pieces a storefront needs alongside the [vaulting mutations](/developer/changelog/2026/10/15), and neither requires a customer JWT.

* **`storedInstrumentsManifest`**: returns the JavaScript bundle that renders the stored instruments UI, where a shopper manages the payment methods saved to their account. The manifest resolves per environment, so asset URLs are not hardcoded. It returns `baseUrl`, `version`, `appVersion`, and a `scripts` list, each entry carrying a `src` and a Subresource Integrity `integrity` hash. Load the scripts in the order returned and apply each `integrity` value to its tag.
* **`paymentBaseUrl`**: returns the base URL of the payments service backing the storefront, for example `https://payments.bigcommerce.com`. Use it to build payments service requests rather than hardcoding a host, so the same storefront code works against whichever environment the store resolves to.
* **Gated per store**: when stored instruments are not enabled, `storedInstrumentsManifest` resolves to `null`. Check for `null` and treat it as the feature being unavailable on the store rather than a transient error.

Both fields are in alpha and are marked deprecated in the schema to signal that status. Their shape may change without notice. Do not use them in production.

For details, see [Get the stored instruments manifest](/developer/docs/storefront/guides/graphql-storefront-api/customers#get-the-stored-instruments-manifest) and [Get the payments service base URL](/developer/docs/storefront/guides/graphql-storefront-api/customers#get-the-payments-service-base-url) in the Customers guide.