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CME GC Allocator API is a JSON RESTful API that provides support for General Collateral (GC) Repo customers to manage their post-trade GC allocations and substitutions.

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• Clients with existing CME Group Login ID can login to Customer Center and under My Profile create an OAuth API ID
• Clients with existing CME Group Login ID and existing Basic Auth API ID can convert the Basic Auth API ID to an OAuth API ID under the API Management section of the CME Group Login under My Profile.

Contact Global Account Management (GAM) for CME GC Allocator API access and more information.

Testing and Certification

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GC Allocator UI Connectivity

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1. Customer contacts the Global Command Center (GCC) and requests the cancellation of a GC Trade allocation.
2. The GCC cancels the GC Trade allocation and sends the Notification Request message to indicate the cancellation; receives an HTTP 200 (OK) with a Collateral Notification Response Message showing the notification.
3. Customer polls for notifications by submitting a GET request including the Acknowledgment Status parameter to /notifications/search?acknowledgementStatus=NOTIFIED; receives an HTTP 200 (OK) with a Collateral Notification Response Message indicating the allocation on which GCC submitted cancellation.
4. (Optional) Customer requests GC Trade allocation for the previously cancelled GC allocator.
5. GCC allocates collateral by submitting a POST to /collateral, using a Collateral Request Message specifying their allocation; receives an HTTP 200 (OK) with a link to the allocation
6. Customer polls for notifications, by submitting a GET request including the Acknowledgement Status parameter to /notifications/search?acknowledgementStatus=NOTIFIED; receives an HTTP 200 (OK) with a Collateral Notification Response Message indicating the allocation on which GCC submitted their notification, as well as an identifier for the notification itself.

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