You can definitely integrate multi-participant video chat with Banuba face AR features. Banuba’s Face AR SDK is designed to work alongside popular video conferencing platforms.

I found a relevant article that could very likely give you a good understanding of how it is done https://www.banuba.com/blog/video-conferencing-api-integration

Banuba provides an integration example with Agora SDK for Unity in the article, which shows how to enable AR filters in group video calls, Their SDK supports multi-face tracking, so each participant can enjoy AR effects at the same time.

To set this up, you’ll typically use Banuba’s Face AR SDK for applying filters and effects locally on each participant’s video feed, then combine it with a video conferencing SDK (like Agora, Video SDK, or similar) to handle the multi-user video call itself.

If I was you I would also explore face ar sdk library on https://github.com/banuba