I am looking to retrieve a list of all assets within a folder in Content Builder using REST API. I have the following endpoint: /asset/v1/content/categories/XXXXXX with no body. This returns a 404. I have also tried using a filter like this: /asset/v1/content/assets?$filter=Category%20eq%20'XXXXXX'. Any ideas on retrieving Content Blocks in a folder in Content Builder?

1 Answer 1


You're very nearly there with your second route. The issue you have is you're filtering on "Category eq 'XXXXX'", but the category is an object, not a string. If you know the Id of the category/folder, you construct the filter like so:


If you know the name of the category, you could potentially filter by name:


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