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A complete Exchange Network node software solution

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OpenNode2 is an open-source National Environmental Information Exchange Network (EN) node that can be freely downloaded and deployed by any Exchange Network Partner. Please visit the Exchange Network at

OpenNode2 is made available by the Environmental Council of the States (ECOS).

This solution fully supports both the Exchange Network Node Specifications version 1.1 and 2.1. OpenNode2 is available for both .Net and Java platforms.

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OpenNode2 Web Site


SOAP, Web Services


BSD License


  • Java and .NET Versions available
  • Supports both Oracle and SQL Server Databases
  • Support for Exchange Network Node Specification v1.1 and v2.1
  • Intuitive administration using the OpenNode2 Admin web application

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Additional Project Details

Intended Audience

Non-Profit Organizations, Government

User Interface


Programming Language

C#, Java, ASP.NET


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