About Audio 2 face API C++ call

I am currently working on a project about digital human interaction. I want to drive the mouth shape of digital humans in Unreal Engine. I have already implemented speech recognition, large model interaction, and speech synthesis in C++ in Unreal Engine. Currently, I am just missing The WAV audio file synthesized from speech drives the digital mouth shape. I would like to know if there is a specific interface for driving mouth shape that can be called by C++ users?

No Audio2Face sdk is not public. You can either use the a2f app + api + livelink to stream to unreal, or use ACE.

Because I used C++ to call it, and it ended up involving packaging, not to implement an audio driver mouth shape function, so I want to know how to call the corresponding API interface to package the product?