OntoBricks: Digital Twin Builder for Databricks, bridging the gap between your Lakehouse and Semantics
OntoBricks is a web application that transforms Databricks tables into a materialized knowledge graph. It lets you design ontologies (OWL), map them to Unity Catalog tables via R2RML, materialize triples into a Delta triple store and graph DB, reason over the graph (OWL 2 RL, SWRL, SHACL), and query it through an auto-generated GraphQL API MCP
The problem: your business knowledge lives in dozens of Unity Catalog tables. Relationships are implicit, semantics are buried in column names, and no LLM agent can reason over it natively.
The idea behind OntoBricks is to let an ontology describe what your data "means", then materialize it as a knowledge graph you can query, reason over, and expose to AI agents (via MCP tool), using W3C and industry standards.
What you can do with it:
* Design ontologies visually (OWL) or import industry standards — FIBO, CDISC, IOF
* Auto-map ontology entities to Unity Catalog tables via R2RML, generated by an LLM
* Materialize triples into a Delta-based triple store (or LadybugDB)
* Reason over the graph — OWL 2 RL inference, SWRL rules, SHACL validation
* Query through an auto-generated GraphQL API, or explore an interactive graph UI
* Plug it into Cursor, Claude Desktop, or the Databricks Playground via MCP
The whole pipeline — Import Metadata → Generate Ontology → Auto-Map → Synchronize — runs in four clicks, powered by LLMs.
It runs natively as a Databricks App. Data and governance stay in your Lakehouse with Unity Catalog.
Open source, built on FastAPI Databricks Apps.
By Benoît Cayla.
github.com/databrickslabs/on…
#Databricks #KnowledgeGraph #DigitalTwin #Ontology #SemanticWeb #DataEngineering #GraphRAG #MCP #OpenSource #EmergingTech
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