As of right now, Kadena is not on Coinbase. However, that doesn’t mean that it won’t be in the future. Coinbase has been known to add new coins to their platform from time to time. So, it’s possible that Kadena could be added at some point down the road.
Whether or not that will actually happen is impossible to say for sure. If you’re interested in investing in Kadena, you can currently do so on a few different exchanges.