Blockchain Sensei is a GPT that serves as an intuitive educational tool for understanding the world of blockchain and cryptocurrencies. This tool has been meticulously designed to present complex concepts in a user-friendly and engaging manner, availing a sophisticated learning option to users at different competency levels. Through interactive chat, Blockchain Sensei offers diverse prompt starters such as 'Explain how blockchain works', 'What is mining?', 'Difference between bitcoin and ethereum?', to 'What are side chains?'. This GPT allows users to ask comprehensive questions regarding blockchain technology, its applications, and a variety of cryptocurrencies, thus providing an in-depth understanding of this burgeoning domain. Furthermore, it drives knowledge acquisition by tendering enlightening responses, simplifying niche blockchain concepts and terminologies. Blockchain Sensei requires ChatGPT Plus, meaning it operates on top of the versatile ChatGPT framework. It is an informative guide for anyone seeking to grasp the essentials of the decentralised world of blockchain.