AI agents are central to autonomous decision-making systems, analyzing data, making decisions, and executing actions across various industries, including transportation, healthcare, finance, smart cities, and industrial automation. While they offer benefits like efficiency, reliability, and cost savings, challenges such as ethical concerns, data privacy, technical limitations, and regulatory hurdles must be addressed. The future of these agents includes advancements in explainability, collaboration with humans, and integration with emerging technologies, emphasizing the need for responsible development and public trust.