Scrape Data from Amazon SellerCentral - Must be able to start today

I want to scrape some keyword data from Amazon seller central and export it to a csv file. Ideally, I want to do this via a chrome extension so that the script does not have to log into the account.
It would just scrape the data on the page and continue clicking thru the pages of data.
I am open to suggestions for the best tool for this