• Revision to the CME ClearPort® API v2.0 Implementation Guide

      • To
      • Clearing Member Firms, Back Office Managers, Software Providers
      • From
      • CME Clearing
      • #
      • 09-450
      • Notice Date
      • 16 October 2009
      • Effective Date
      • 16 October 2009
    • Now scheduled for a November 2009 release, CME Group will launch a new CME ClearPort® API. 
       
      To provide customers with an overview of the API, how to initialize and build a client application, instructions on how to authenticate, request resource data and enter trades for clearing, we have developed a CME ClearPort API v2.0 Implementation Guide  located at http://www.cmegroup.com/clearing/clearport/clearport-api.html.
       
      Please be advised that there are significant changes to the Implementation Guide. The list of revisions to the document is listed in the Version Control. Please review these changes carefully as it may affect your development efforts.
       
      If you should have any questions, please contact the Market Operations Technical Support group at the number below.
       
      Market Operations Technical Support (formerly known as the NYMEX Third Party Services)
      24 Hour 6 Days a Week Support available from Sundays at 5PM EST to Fridays at 5PM EST
      Phone: 800-275-6215 / 212-301-4720
       

CME Group is the world’s leading derivatives marketplace. The company is comprised of four Designated Contract Markets (DCMs). 
Further information on each exchange's rules and product listings can be found by clicking on the links to CME, CBOT, NYMEX and COMEX.

© 2025 CME Group Inc. All rights reserved.