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What is Project Haystack?

Project Haystack is an open source initiative to streamline working with data from the Internet of Things. We standardize semantic data models and web services with the goal of making it easier to unlock value from the vast quantity of data being generated by the smart devices that permeate our homes, buildings, factories, and cities. Applications include automation, control, energy, HVAC, lighting, and other environmental systems.

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WGs are addressing additional equipment systems and applications for the built environment.



Are you new to Project Haystack?
Start here with our primer Introduction to Project Haystack.



Dig a little deeper into a reference implementation "Applying Haystack Tagging to a Sample Building".

Tech Blog

Important updates for the Project Haystack community.

Latest News

The Latest Press Releases by the Project Haystack community.

Recent Articles

Recently published articles by the Project Haystack community for the Project Haystack community!

Connections Magazine

Spring 2021


Haystack 4 Update

Brian Frank, Technical Lead, Project Haystack gives us the update.


J2 Innovations

HAYSON - New Haystack JSON Encoding


Tagging Niagara Station Components

How Niagara users can configure tag dictionaries for easy reuse and faster overall deployment of a tagged project.


Haystack and Data Interoperability

Interoperability between systems and data should not be a luxury that only a few have.

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