graph-database

Open-source memory SDK for AI agents with persistent cross-session memory, graph relationships, semantic search, and AI-powered memory processing. Offers both self-hosted and cloud modes, plus MCP support for tools like Claude Code.

HelixDB is an OLTP graph-vector database built in Rust, aimed at AI apps, knowledge graphs, and memory layers. The page shows the product’s core model, CLI workflow, SDK examples, and local setup commands.