I am fetching current price of 500 coins from coinmarketcap.com using their api for some crypto research. I also the all time high and low of these coins to see how much has the value appreciated/ depreciated since all time high / low.

Does any one know where I can find the all time high and low of the coins. Could't find any api/website offering the same. Its okey even if its a website because, I just want fetch the data once. I can update my record if the coin hits a new high / low after that using live data from coinmarketcap.