EverMemOS is the core memory operating system designed to give AI a lasting identity. It moves beyond simple data retrieval, acting as a "memory application processor" that enables AI to reason with context, grow with experience, and evolve from a stateless tool into a true, personalized partner . With a state-of-the-art score of 92.3 on LoCoMo, EverMemOS is the open-source foundation for the next era of intelligent agents.