HelixDB

HelixDB is an open-source database designed to give AI agents and applications access to connected, searchable knowledge. Backed by Y Combinator, it combines a property graph with native vector and full-text search in a single Rust engine, with data stored on object storage. The platform is built for agent memory, retrieval-augmented generation (RAG), and company knowledge systems, and is positioned for use at different scales.

HelixDB lets teams connect information such as code, documentation, people, and projects, then link relevant records through their relationships. Its graph traversal and vector-plus-BM25 search can run together in one request, helping applications retrieve contextually relevant information and provide answers grounded in source records. Example uses include maintaining memories about users and conversations, finding related service issues, searching account histories, and exploring documents or clinical notes.

The brand also presents HelixDB as a way to build connected company knowledge across tools such as GitHub, Google Drive, Notion, and SharePoint. HelixDB offers documentation, a blog, and an enterprise option for organizations evaluating the product.