Hello. This is Klaytn API Service team.
Please refer to the following information about Klaytn API Service Wallet Key.
200 free wallet keys are provided to all plan users.
When you create an account through Wallet API, you can also create multiple keys per account.
By granting different roles to multiple keys, you can increase security and manage your account more efficiently. If you would like to know more about Wallet key, you check Klaytn Docs for further details.
Klaytn API Service team.