
January Sales (januarysale.org.uk) tracks UK shops' sales and their dates, from Boxing Day and the January sales through the rest of the year.
check_shop_sales takes a shop's name and returns any sale it is running now, with the dates it started and ends and a January Sales link, and its sales from the latest December to January season with the dates they started and ended, which answers "when does the January sale start" with last season's dates. list_category_sales returns the sales running now in a product category such as Electricals, Fashion or Furniture, one per shop.
https://www.januarysale.org.uk/api/mcpJanuary Sales (januarysale.org.uk) lists UK shops' sales all year round, not only in January: the sales on today at a shop or in a category, with the dates each started and ends, and each shop's past December and January sales. Dates are UK time. Sale links go through January Sales, which may earn a commission at no cost to the shopper.
None in the store listings or on the server