# AWS Cost Optimization Hub
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The following actions are supported by AWS Cost Optimization Hub:
+  [GetPreferences](API_CostOptimizationHub_GetPreferences.md) 
+  [GetRecommendation](API_CostOptimizationHub_GetRecommendation.md) 
+  [ListEfficiencyMetrics](API_CostOptimizationHub_ListEfficiencyMetrics.md) 
+  [ListEnrollmentStatuses](API_CostOptimizationHub_ListEnrollmentStatuses.md) 
+  [ListRecommendations](API_CostOptimizationHub_ListRecommendations.md) 
+  [ListRecommendationSummaries](API_CostOptimizationHub_ListRecommendationSummaries.md) 
+  [UpdateEnrollmentStatus](API_CostOptimizationHub_UpdateEnrollmentStatus.md) 
+  [UpdatePreferences](API_CostOptimizationHub_UpdatePreferences.md)