HelixDB: an open-source graph-vector database built from scratch in Rust.

HelixDB is a database that makes it easy to build all the components needed for an AI application in a single platform. You no longer need a separate application DB, vector DB, graph DB, or application layers to manage the multiple storage locations to build the backend of any application that uses AI, agents or RAG. Just use Helix.

HelixDB primarily operates with a graph + vector data model, but it can also support KV, documents, and relational data.

| Built-in MCP tools | Helix has built-in MCP support to allow your agents to discover data and walk the graph rather than generating human readable queries. |
| Built-in Embeddings | No need to embed your data before sending it to Helix, just use the Embed function to vectorize text. |
| Tooling for RAG | HelixDB has a built-in vector search, keyword search, and graph traversals that can be used to power any type of RAG applications. |
| Secure by Default | HelixDB is private by default. You can only access your data through your compiled HelixQL queries. |
| Ultra-Low Latency | Helix is built in Rust and uses LMDB as its storage engine to provide extremely low latencies. |
| Type-Safe Queries | HelixQL is 100% type-safe, which lets you develop and deploy with the confidence that your queries will execute in production |

Start by installing the Helix CLI tool to deploy Helix locally.

Install CLI

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

Initialize a project

mkdir <path-to-project> && cd <path-to-project>
helix init

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.

N::User { INDEX name: String, age: U32 }
QUERY getUser(user_name: String) => user <- N<User>({name: user_name}) RETURN user

(Optional) Check your queries compile

helix check

Deploy your queries to their API endpoints

helix push dev

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);

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

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.