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TChat

Easily connect your Terraria and Twitch chat -- view and send Twitch chat messages in game.

Setup requires
1) username of the Twitch chat you want to connect to
2) username you want to send messages from
3) an OAuth Access Token for the account sending messages.

https://twitchtokengenerator.com/ -- for an access token -- make sure you login with the account that is sending messages