generated: '2026-07-22'
method: searched
source: https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457215780/CME+Reference+Data+API+Version+3
notes: >-
  CME Group's test surface is the "New Release" environment — a parallel
  pre-production deployment with its own hosts and its own OAuth authorization
  server. API ID credentials are environment-specific and cannot be used
  across environments. Testing is strongly encouraged; certification is not
  required for the cloud market data APIs. No magic test values are published.
environments:
  - name: New Release
    purpose: client testing before production access
    hosts:
      - api: CME Reference Data API v3
        base_url: https://refdata.api.uat.cmegroup.com/refdata/v3
    oauth_token_endpoint: https://authnr.cmegroup.com/as/token.oauth2
    credentials: >-
      Separate OAuth API ID registered for the New Release environment via the
      CME Customer Center; BrokerTec and EBS content additionally requires
      entitlement by the Enterprise Access and Entitlements (EASE) team via the
      New Release test registration forms.
  - name: Production
    hosts:
      - api: CME Reference Data API v3
        base_url: https://refdata.api.cmegroup.com/refdata/v3
      - api: Market data APIs (FedWatch, Term SOFR, Greeks, Cross Currency)
        base_url: https://markets.api.cmegroup.com
    oauth_token_endpoint: https://auth.cmegroup.com/as/token.oauth2
testing:
  certification_required: false
  testing_encouraged: true
  onboarding: https://www.cmegroup.com/tools-information/webhelp/data-services-portal/Content/Onboarding%20CME%20Group%20Cloud-Based%20Market%20Data%20APIs.html