Hi @siva_g, you can use any kind of backend for the knowledge base. However, we don’t have any example that uses MySQL. Maybe someone else has? If not you need to write the connector for MySQL yourself. I would recommend to also take a look at Knowledge Base Actions. Knowledge Base Actions are an experimental feature inside Rasa-SDK that helps you to connect your assistant with a knowledge base. In order to use MySQL you would need to change the implementation of the knowledge base, see here. Hope that helps.