MemoryOS
Hybrid AI Memory: Vector RAG meets Knowledge Graphs
MemoryOS launched on April 27, 2026 with 3 votes, #2,709 of 21,248 launches that month and more than 50% of that year's launches.
What it does
Most AI memory relies on Vector RAG, which lacks structural context. MemoryOS is a hybrid knowledge base that runs Vector Search and Graph Traversal in parallel. Using recursive SQL CTEs, it finds relational links that standard RAG misses—like discovering "HNSW" when you only query "indexing." It features a real-time Retrieval Inspector, UMAP semantic cluster maps, and an MCP server to connect your local knowledge memory directly to any AI assistant like Claude or ChatGPT.
MemoryOS is a powerful personal knowledge base that combines traditional **RAG (Vector Search)** with a **High-Fidelity Knowledge Graph**. It doesn't just store your notes; it understands the structural, causal, and semantic relationships between your ideas. - CommonCapital/MemoryOS
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