The Catalog API allows users to search for and locate an eBay catalog product that is a direct match for the product that they wish to sell. Listing against an eBay catalog product helps insure that all listings (based off of that catalog product) have complete and accurate information. In addition
curl \
-H "Authorization: Bearer $ACCESS_TOKEN" \
https://api.ebay.com/commerce/catalog/v1_beta/product/{epid}curl \ -H "Authorization: Bearer $ACCESS_TOKEN" \ https://api.ebay.com/commerce/catalog/v1_beta/product_summary/search