Unfortunately, as already mentioned, Apple does not provide an official way to access a user's Memoji or directly interact with the Memoji stickers from the keyboard programmatically.

That said, while there is no direct API for this, you can still create a way to use Memojis or Emojis in a custom view. For example, you could use a UITextView to retrieve Memojis directly from the keyboard. Here is an example on how to do it