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Lumen Brain API is an AI-powered memory system that lets developers store, retrieve, and reason over knowledge to enrich AI outputs in their applications. It provides simple SDKs for JavaScript/TypeScript and Python to inject knowledge and query the memory, with a Live Memory Network that builds contextual connections over time. It emphasizes automatic context feeding at runtime, zero fine-tuning, and fast latency, positioning itself as the memory layer for AI.
AI named LumenBrain in December 2025.