FalkorDB

FalkorDB is an open-source graph database built on GraphBLAS sparse-matrix algebra and running as a Redis module, making it the direct continuation of RedisGraph after Redis Labs discontinued it in early 2025. Founded in Tel Aviv in 2023, it raised a $3M seed from Angular Ventures and positions itself as the knowledge-graph layer for LLM applications.

Its AI play is explicit: a first-party GraphRAG SDK that ranked first on GraphRAG-Bench across all four question types in its 1.0 release (April 2026), an MCP server for LLM integration, mem0 integration for persistent agent memory, and a September 2026 v6.0 release rebuilt on a new Rust engine with 39% fewer CPU instructions. Query latency claims center on sub-10ms multi-hop traversals.

Limitations to note: it is licensed SSPL-1.0, which is not OSI-approved and restricts offering it as a managed service; the ecosystem is far smaller than Neo4j's; and benchmark wins are vendor-run and should be reproduced on your own graph shapes.

Run via Docker as a Redis module, or use FalkorDB Cloud with a free tier for MVPs.