How to add cardano to metamask
https://cryptocarepro.com/add-cardano-to-metamask/
How To add Cardano (ADA) to Metamask, you need to first install the Cardano network in your Metamask wallet. This can be done by going to the "Networks" section in Metamask and selecting "Custom RPC". Then, enter the Cardano network details, such as the RPC URL and chain ID.