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The UX Toolkit endpoints form the link between the Marqeta platform and your code. They enable you to obtain the access you need to upload the themes you develop using the Studio interactive design environment and apply them to the card products in your card program. This is also how you can upload the card art associated with a theme for display in Studio and in your application as part of various UI components. Before using the API endpoints, follow the UX Toolkit Getting Started guide to learn how to properly install and begin working with UX Toolkit.
Important This version of UX Toolkit supports prepaid and debit card programs in the United States, Canada, and the EU.

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Base URLs

There are two dedicated URLs for working with UX Toolkit: a sandbox URL and a base URL.
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Use the sandbox URL for developing your card product. Use the base URL to build your endpoints for a production environment. For an overview of the UX Toolkit platform, see About UX Toolkit. For information on the available UX Toolkit web components, see Working with UX Toolkit Web Components.

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Available operations