Cube
Universal semantic layer for AI and analytics applications.
Why consider Cube?
Cube is an open-source universal semantic layer that connects data warehouses to BI tools and AI agents. It centralizes metric definitions, access controls, and query acceleration caching.
Learn Cube by building
Practical setup notes, real use cases, and copy-ready examples in one focused guide.
In this guide2 sections
Overview of Cube
Cube sits between modern cloud data warehouses (PostgreSQL, Snowflake, ClickHouse, DuckDB) and data consumers (BI tools, front-end charts, LLM agents). It standardizes metric definitions as code, handles multi-tenant caching with pre-aggregations, and serves data via SQL, REST, and GraphQL APIs.
Creating a Cube Application
npm install -g cubejs-clicubejs create my-semantic-layer -d postgrescd my-semantic-layernpm run devOpen the Developer Playground on http://localhost:4000 to build data schemas and run analytical queries.
Cube Core is licensed under the Apache License Version 2.0.
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