Open data · Sunday, September 27, 2026
NSF launches the Open Knowledge Network with 43 linked knowledge graphs
The File desk · Sep 27, 2026, 10:09 AM UTC
Status
Confirmed (NSF TIP update, Sept. 25, 2026)
On Sept. 25, 2026, the National Science Foundation said the NSF Open Knowledge Network is live and public at okn.us. It links 43 interconnected knowledge graphs and tens of billions of facts across health, environment, justice, manufacturing, and national security, built to give AI systems a shared, auditable knowledge layer. It grew from a $26.7 million Prototype Open Knowledge Network program with the National Institutes of Health, NASA, the National Institute of Justice, the National Oceanic and Atmospheric Administration, the U.S. Geological Survey, and others.
On Sept. 25, 2026, the National Science Foundation said the Open Knowledge Network is live and public at okn.us.
The network links 43 interconnected knowledge graphs and tens of billions of facts.
The subjects include health, the environment, justice, manufacturing, and national security.
The foundation said it is built to give artificial-intelligence systems a shared knowledge layer that can be audited.
It grew out of a $26.7 million Prototype Open Knowledge Network program.
Partners named on the page include the National Institutes of Health, the National Aeronautics and Space Administration, the National Institute of Justice, the National Oceanic and Atmospheric Administration, the U.S. Geological Survey, and others.
What is still unknown or disputed
- Independent performance benchmarks of cross-graph queries are not on the launch page.
Primary sources
Every claim in this story is drawn from the documents below. If a fetch failed, that is recorded on the card.
Source 1
NSF launches the Open Knowledge Network
National Science Foundation, Directorate for Technology, Innovation and Partnerships · September 25, 2026
The page states the Sept. 25, 2026 launch, the public site okn.us, 43 linked knowledge graphs, partner agencies, and an artificial-intelligence-ready framing.
https://www.nsf.gov/tip/updates/nsf-launches-open-knowledge-network-national-open-data