Flair Chat

This WordPress plugin provides a live chat block for logged in users only,
and uses the pusher api pusher.com/channels/pricing, Your site will
probably do alright with the free tier.

Configuration

1. Create an account with https://dashboard.pusher.com/accounts/sign_in
2. After step 1 above, create a Channels app and click on the App Keys and note the app details ie; app_id, key, secret and cluster.
3. From your wordpress plugins listing page, below the FlairChat plugin is the configuration link, click on that and fill in
   the form with the right information from step 2 above ie; app_id, key, secret and cluster.