e-api reference menuaol: http://developer.ebay.com/devzone/finding/howto/gettingstarted_js_nv_json/gettingstarted_js_nv_json.html for example: http://svcs.ebay.com/services/search/FindingService/v1?OPERATION-NAME=findItemsByKeywords&SERVICE-VERSION=1.0.0&SECURITY-APPNAME=DavidGer-HotListi-PRD-0090fc79c-4f18c5d1&GLOBAL-ID=EBAY-US&RESPONSE-DATA-FORMAT=JSON&callback=_cb_findItemsByKeywords&REST-PAYLOAD&keywords=harry%20potter&paginationInput.entriesPerPage=3&itemFilter(0).name=MaxPrice&itemFilter(0).value=25&itemFilter(0).paramName=Currency&itemFilter(0).paramValue=USD&itemFilter(1).name=FreeShippingOnly&itemFilter(1).value=true&itemFilter(2).name=ListingType&itemFilter(2).value(0)=AuctionWithBIN&itemFilter(2).value(1)=FixedPrice&SECURITY-APPNAME=DavidGer-HotListi-PRD-0090fc79c-4f18c5d1