HelixDB: an open-source graph-vector database written in Rust built for RAG and AI applications.

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HelixDB is a high-performance graph-vector database designed with a focus on developer experience and performance. Built in Rust and powered by LMDB as its storage engine, it combines the reliability of a proven storage layer with modern features tailored for AI and vector-based applications.

We are currently using LMDB via Heed3, a rust wrapper built by the amazing team over at Meilisearch.

Key Features

Fast & Efficient: Built for performance we're currently 1000x faster than Neo4j, 100x faster than TigerGraph and on par with Qdrant for vectors.
RAG-First: Native support for graph and vector data types, making it ideal for RAG (Retrieval Augmented Generation) and AI applications
Graph-Vector: Easiest database for storing relationships between nodes, vectors, or nodes AND vectors.
Reliable Storage: Powered by LMDB (Lightning Memory-Mapped Database) for robust and efficient data persistence
ACID Compliant: Ensures data integrity and consistency

Getting Started

Helix CLI

The Helix CLI tool can be used to check, compile and deploy Helix locally.

Install CLI

curl -sSL "https://install.helix-db.com" | bash

Install Helix
```
helix install
```
Setup
```
helix init --path <path-to-project>
```

Write queries

Open your newly created .hx files and start writing your schema and queries. Head over to our docs for more information about writing queries

QUERY addUser(name: String, age: I64) =>
   user <- AddN<User({name: name, age: age})
   RETURN user

QUERY getUser(user_name: String) =>
   user <- N<User::WHERE(_::{name}::EQ(user_name))
   RETURN user

Check your queries compile before building them into API endpoints (optional)
```
# in ./<path-to-project>
helix check
```
Deploy your queries
```
# in ./<path-to-project>
helix deploy
```

Start calling them using our TypeScript SDK or Python SDK. For example:

import HelixDB from "helix-ts";

// Create a new HelixDB client
// The default port is 6969
const client = new HelixDB();

// Query the database
await client.query("addUser", {
   name: "John",
   age: 20
});

// Get the created user
const user = await client.query("getUser", {
   user_name: "John"
});

console.log(user);

Other commands:

helix instances to see all your local instances.
helix stop <instance-id> to stop your local instance with specified id.
helix stop --all to stop all your local instances.

Roadmap

Our current focus areas include:

Expanding vector data type capabilities for RAG applications
Implementing a test suite to enable end-to-end testing of queries before deployment
Building a Deterministic Simulation Testing engine enabling us to robustly iterate faster
Binary quantisation for even better performance

Long term projects:

In-house graph-vector storage engine (to replace LMDB)
In-house network protocol & serdes libraries (similar to protobufs/gRPC)

License

HelixDB is licensed under the The AGPL (Affero General Public License).

Commercial Support

HelixDB is available as a managed service for selected users, if you're interested in using Helix's managed service or want enterprise support, contact us for more information and deployment options.

License

meta-introspector/helix-db

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