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Amazon Web Services (AWS)August 15, 2026

Context Ontology Accelerator

Open Source
AI Agents
Knowledge Graphs
Ontology
Semantic Layer

Explore Context Ontology Accelerator

Visit the official website to learn more and get started

### TL;DR

Context Ontology Accelerator is an open-source semantic context layer that enables AI agents to make accurate, consistent, and explainable decisions by grounding them in formal ontologies and knowledge graphs. It streamlines the process of connecting data sources, inducing business ontologies, and serving governed context to agents via the Model Context Protocol (MCP).

Key Insights & Metrics

Pricing
Open source (Apache License 2.0); users are responsible for costs associated with the underlying AWS infrastructure (e.g., Neptune, OpenSearch, Bedrock)
Cost structure
Version
0.2.0
Current release version
Hardware
Requires an AWS account for hosted infrastructure, plus Python 3.12, Node.js 22+, Docker, Java 17+, and Gradle on your local build machine for deployment
Compute requirements
Category
Open Source
Licensing model
Region
United States
Primary region

Key Features

  • AI-assisted ontology induction with human-in-the-loop review
  • Support for W3C standards including OWL, RDF, SHACL, and SPARQL
  • Model Context Protocol (MCP) server for seamless agent integration
  • Governance via Cedar authorization policies and SQL Firewall
  • Unified data ingestion from structured and unstructured sources

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