Kastro is an AI-first customer support platform built for startups and indie developers. It helps handle up to 80% of common support questions while using only a small share of your team’s time.
AI chatbot powered by your knowledge base
Kastro connects to your help center and uses ChatGPT to answer repetitive questions automatically. It pulls relevant articles from your existing documentation to keep responses consistent and reduce support load.
Focus on the conversations that matter
By automating routine tickets, your support team can spend more time on complex, high-value customer issues. When a case needs a person, Kastro supports a “human handoff” flow to route the conversation to a human agent.
All-in-one, simple, and budget-friendly
Kastro combines a chatbot, conversation organization, and knowledge base workflows in one interface, making it easier to launch support from scratch for small teams.

