chattermate.chat

Open-source AI customer support platform — AI chatbot with human handoff, Shopify & Slack integrations, visual workflow builder. Self-hosted alternative to Intercom & Zendesk. Apache-2.0. Maintained by chattermate on GitHub, where it has earned 73 stars from the community.

It's actively developed around ai, ai-agents, chatbot, and is a solid reference for anyone building with these tools.