To do this you only have to add a api2.xml in your modules etc folder that puts the necessary product tags into the node /config/api2/resources/product/attributes (xPath): <config> <api2> <resources> <product> <attributes> <sheldon_ean>EAN</sheldon_ean> <sheldon_articlenbr>Articlenumber (Model)</sheldon_articlenbr> <sheldon_stylenbr>Stylenumber</sheldon_stylenbr> <sheldon_color>Color</sheldon_color> <sheldon_size>Size</sheldon_size> <sheldon_material_description>Material Description</sheldon_material_description> <sheldon_supplement>Supplement</sheldon_supplement> <sheldon_carehints>Carehints</sheldon_carehints> <sheldon_is_aboable>Is aboable product</sheldon_is_aboable> <sheldon_is_sale_product>Is sale product</sheldon_is_sale_product> <sheldon_is_new_product>Is new product</sheldon_is_new_product> <sheldon_is_reddot_product>Is reddot Product</sheldon_is_reddot_product> <sheldon_reddot_years>Product Reddotyears</sheldon_reddot_years> […]