Fredboat - FredBoat is one of the best online music bots for Discord.
Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
BMO - BMO is a music Discord bot that offers a wide range of high-quality music, games, memes, and other entertainment.
UseResponse - Open-source, self-hosted customer feedback software, live chat and helpdesk system that you can install on your server. Organize documentation using knowledge base and get feedback from social networks with centralized system
Groovy - A dynamic language for the Java platform
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.