Working with Emotes

Enable the IRCv3 tags capability and emotes use in a message will be presented to you in the tags for a PRIVMSG

See the Guide: Getting Twitch Emotes | Twitch Developers

And the documented tags: Twitch IRC Tags | Twitch Developers for PRIVMSG

That would be EMOTESETS when you connect to chat from USERSTATE

There is no API support for EmoteSet to “name” or vice versa