Circle has developed, as part of what is known as USDCkit, the Circle Wallet Technology, originally released a Programmable Wallets. The Circle Wallet was named as a programmable wallet because it offered an easy to use Wallet as a Service technology for programmers to add in their offerings. They offer User Managed wallets, where the user confirms things, and Developer Managed wallets, where everything is managed with code and shared secrets. Circle Wallets were the original technology utilized by Web3 Enabler to implement its initial wallets.