brainstate

NVIDIA/auto-ontology

An open context layer that turns database metadata into an ontology, so AI agents answer questions about enterprise data with fewer wrong answers.

It gives agents one trusted definition per business concept, mapped across tables and databases, so analytics answers are grounded instead of improvised. Agents query through the ontology, and people review and certify it in a web UI; terms, reviewed SQL and joins are served over MCP and a REST API.

Python★ 3.1kApache-2.0GitHub ↗

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sources

Claims below include README evidence. A matching quote or worker agreement does not establish that a claim is correct. Category majority among 2 workers. Version 1.

An open context layer that turns database metadata into an ontology, so AI agents answer questions about enterprise data with fewer wrong answers.

An open context layer that helps agents give fewer wrong answers on enterprise data.

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

It gives agents one trusted definition per business concept, mapped across tables and databases, so analytics answers are grounded instead of improvised.

Give agents one definition per business concept, mapped across

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Agents query through the ontology, and people review and certify it in a web UI; terms, reviewed SQL and joins are served over MCP and a REST API.

query through the ontology, and people review it in a web UI.

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Generates an ontology from database metadata.

Generate an ontology from database metadata

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Gives agents one definition per business concept, mapped across tables and databases.

Give agents one definition per business concept, mapped across

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Lets people review, edit and certify definitions in the UI.

Review, edit, and certify definitions in the UI

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Checks whether a question is answerable before querying.

Check whether a question is answerable before querying

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Serves context to any agent harness through MCP.

Serve context to any agent harness through MCP

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Connects to ten source database engines.

Auto-Ontology connects to ten engines:

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Exposes read-only ontology tools to any MCP client.

The [MCP](https://modelcontextprotocol.io) server gives any MCP client read-only

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Returns each answer with the SQL and the steps that produced it.

The answer comes back with its SQL and the steps that produced it,

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Imports and exports semantic models as Apache Ossie YAML.

Auto-Ontology is compatible with [Apache Ossie](https://ossie.apache.org/)

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Routes predictive questions to KumoRFM when it is configured.

Set `KUMO_RFM_API_KEY` and the agent routes predictive questions to KumoRFM.

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

People review and certify the ontology in a web UI

Agents query through the ontology, and people review it in a web UI

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Checks whether a question is answerable before querying

Check whether a question is answerable before querying

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Serves context to agent harnesses through MCP and agent skills

Serve context to any agent harness through MCP, agent skills, and

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Imports existing semantic models and shows the result as a graph

import existing semantic models, and explore the result as a semantic graph

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Evaluated on BIRD, BEAVER and other SQL benchmarks

For BIRD, BEAVER, FDABench-Lite, and Wide World Importers, each eval item pairs a question with gold SQL

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Limitation: The backend and ingestion services must keep their ports on a private network.

Keep ports 3001 and 3002 on a private network.

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Limitation: The ingestion endpoints (ingest, delete, reset, compile) have no authentication of their own.

endpoints (ingest, delete, reset, compile) have no authentication of

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Limitation: External pull requests are not accepted.

The Auto-Ontology team maintains the code and doesn't accept external pull

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Limitation: The quickstart needs Docker with Compose v2.

You need Docker with Compose v2,

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Limitation: Predictive questions rely on KumoRFM, a hosted service that receives the connected tables.

KumoRFM is a hosted service: to answer, the agent uploads the connected tables

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

Limitation: The software automatically retrieves external materials under separate terms and licenses.

This software automatically retrieves, accesses or

Quote matched the README or GitHub description at extraction. Same claim and quote from 1 worker(s). Interpretation not reviewed by a maintainer.

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