#19 · Primary category: AI Data Infrastructure & Storage
memgraph
High-performance open-source in-memory graph database for GraphRAG, AI memory, agentic AI, and real-time graph analytics. Cypher-compatible, built in C++.
Project last updated:08/29/26
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Why we included this project
Memgraph is an in-memory graph database designed for AI systems that need to combine connected, structured data with similarity search in a single query. Instead of stitching a vector index onto a separate relational store, it executes Cypher traversals, full-text matches, and vector lookups atomically, which makes it a natural fit for GraphRAG retrieval, agent memory, and real-time analytics on networks or transactions. Teams already fluent in Neo4j's Cypher dialect can move over without re-learning query syntax, and the engine targets sub-millisecond multi-hop traversals for latency-sensitive workloads. For anyone building LLM or agent pipelines, it fills the practical gap of where to persist and query the relational context those models depend on.
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