• Search Interface
  • http://gcmd.nasa.gov


• Metadata Web System
  • RESTFul Service
  • Documentation:PDF
  • Example Java Class: here
  • Example in Objective-C: here


• Keyword Management System
  • RESTFul Service
  • Static Directory
  • Documentation: PDF
  • Example Java Class: here


• Catalog Services for the Web
  • CSW Server
  • Example Java Class: JavaClient.java
  • libcurl c Example: libcurl.java
  • Procedures for accessing CS-W Testing Server


• Many of the GCMD systems authenticate against the EOSDIS User Registration System

To make suggestions or inquiries to the Global Change Master Directory staff, please post a message to the GCMD Mail Comments form. For technical alerts please subscribe to the following email lists:

• gcmd-notifications@lists.nasa.gov - outages and service down times
• gcmd-announce@lists.nasa.gov - new features, pending release schedules
• gcmd-tech@lists.nasa.gov - issues and discussions of software and technologies used by GCMD