Personal Finance Assistant AI Agent is an open-source, AI-driven tool developed to streamline personal financial management through natural language conversation. It enables users to log daily expenses by simply chatting, automatically categorizes transactions, and organizes data into comprehensive budgets. Leveraging OpenAI's GPT-4 model, it analyzes spending patterns to generate tailored budgeting recommendations, forecasts future expenditures, and visualizes financial trends with easy-to-read charts. Users can set savings goals, receive alerts when nearing budget limits, and query real-time insights about their finances. The agent stores data locally in a SQLite database for privacy, while being extensible to integrate with banking APIs or customize categories. Its intuitive interface makes it accessible for individuals and small businesses to optimize financial planning and decision-making.