Cantian AI is an artificial intelligence agent designed for Chinese astrology and fortune telling. Its primary function is to provide BaZi (Chinese horoscope) calculations and insights by combining traditional Eastern wisdom with modern AI technology. The platform covers areas such as BaZi astrology, divination, Feng Shui, and naming, offering guidance on topics including love, wealth, career, and everyday life. The application uses a system of specialized skills to address different types of user inquiries. These skills include BaZi Luck Scan, Liuyao Hexa Cast, Feng Shui Home Setup, I Ching Trend Read, and Soulmate Reference. Additional features include Oracle Poems, a Yearly Entry function, a BaZi Orrery, and the Cantian Wiki. When a user submits a question, the AI selects the appropriate skill or combination of skills to generate a response. The output typically includes detailed interpretations, images, outcomes, and suggested rituals. The platform is available on Android through Google Play, and it has an open source component called Bazi MCP. The system is built upon classical texts, including the Equatorial Star Chart from the Qing Dynasty (1851). The development approach focuses on transforming classical knowledge into practical, usable systems. The AI is designed to understand the context of user queries and provide comprehensive guidance. Cantian AI has attracted over one million users and placed third in the 17th Global Fortune Telling Competition.