NVIDIA Releases Auto Ontology: An Open Semantic Layer That Grounds AI Agent SQL

NVIDIA has released Auto Ontology, an Apache 2.0-licensed semantic layer framework that builds a context layer from enterprise metadata so agents can write SQL against certified business definitions. It exposes context through 9 read-only MCP tools plus CLI and API, defaults to nvidia/nemotron-3-nano-30b-a3b with Nemotron embedding and reranking models, and runs via Docker Compose or Kubernetes/Helm with hosted or self-hosted NIM endpoints. NVIDIA reports a 90% cut in ontology creation time in its own testing, but no text-to-SQL accuracy scores are published; a separate eval harness ships without results.