Amazon CloudWatch endpoints and quotas

The following are the service endpoints and service quotas for this service. To connect programmatically to an AWS service, you use an endpoint. In addition to the standard AWS endpoints, some AWS services offer FIPS endpoints in selected Regions. For more information, see AWS service endpoints. Service quotas, also referred to as limits, are the maximum number of service resources or operations for your AWS account. For more information, see AWS service quotas.

Service Endpoints

Region Name	Region	Endpoint	Protocol
US East (Ohio)	us-east-2	monitoring.us-east-2.amazonaws.com monitoring-fips.us-east-2.amazonaws.com	HTTP and HTTPS HTTPS
US East (N. Virginia)	us-east-1	monitoring.us-east-1.amazonaws.com monitoring-fips.us-east-1.amazonaws.com	HTTP and HTTPS HTTPS
US West (N. California)	us-west-1	monitoring.us-west-1.amazonaws.com monitoring-fips.us-west-1.amazonaws.com	HTTP and HTTPS HTTPS
US West (Oregon)	us-west-2	monitoring.us-west-2.amazonaws.com monitoring-fips.us-west-2.amazonaws.com	HTTP and HTTPS HTTPS
Africa (Cape Town)	af-south-1	monitoring.af-south-1.amazonaws.com	HTTP and HTTPS
Asia Pacific (Hong Kong)	ap-east-1	monitoring.ap-east-1.amazonaws.com	HTTP and HTTPS
Asia Pacific (Mumbai)	ap-south-1	monitoring.ap-south-1.amazonaws.com	HTTP and HTTPS
Asia Pacific (Osaka)	ap-northeast-3	monitoring.ap-northeast-3.amazonaws.com	HTTP and HTTPS
Asia Pacific (Seoul)	ap-northeast-2	monitoring.ap-northeast-2.amazonaws.com	HTTP and HTTPS
Asia Pacific (Singapore)	ap-southeast-1	monitoring.ap-southeast-1.amazonaws.com	HTTP and HTTPS
Asia Pacific (Sydney)	ap-southeast-2	monitoring.ap-southeast-2.amazonaws.com	HTTP and HTTPS
Asia Pacific (Tokyo)	ap-northeast-1	monitoring.ap-northeast-1.amazonaws.com	HTTP and HTTPS
Canada (Central)	ca-central-1	monitoring.ca-central-1.amazonaws.com	HTTP and HTTPS
China (Beijing)	cn-north-1	monitoring.cn-north-1.amazonaws.com.cn	HTTP and HTTPS
China (Ningxia)	cn-northwest-1	monitoring.cn-northwest-1.amazonaws.com.cn	HTTP and HTTPS
Europe (Frankfurt)	eu-central-1	monitoring.eu-central-1.amazonaws.com	HTTP and HTTPS
Europe (Ireland)	eu-west-1	monitoring.eu-west-1.amazonaws.com	HTTP and HTTPS
Europe (London)	eu-west-2	monitoring.eu-west-2.amazonaws.com	HTTP and HTTPS
Europe (Milan)	eu-south-1	monitoring.eu-south-1.amazonaws.com	HTTP and HTTPS
Europe (Paris)	eu-west-3	monitoring.eu-west-3.amazonaws.com	HTTP and HTTPS
Europe (Stockholm)	eu-north-1	monitoring.eu-north-1.amazonaws.com	HTTP and HTTPS
Middle East (Bahrain)	me-south-1	monitoring.me-south-1.amazonaws.com	HTTP and HTTPS
South America (São Paulo)	sa-east-1	monitoring.sa-east-1.amazonaws.com	HTTP and HTTPS
AWS GovCloud (US-East)	us-gov-east-1	monitoring.us-gov-east-1.amazonaws.com monitoring.us-gov-east-1.amazonaws.com	HTTP and HTTPS HTTPS
AWS GovCloud (US-West)	us-gov-west-1	monitoring.us-gov-west-1.amazonaws.com monitoring.us-gov-west-1.amazonaws.com	HTTP and HTTPS HTTPS

Service Quotas

Resource	Default Quota
Actions	5/alarm. This quota cannot be changed.
Alarms	10/month/customer for free. 5000 per Region, per account. You can request a quota increase. Alarms based on metric math expressions can have up to 10 metrics.
Anomaly detection models	500 per Region, per account.
API requests	1,000,000/month/customer for free.
Canaries	100 per Region per account in the following Regions: US East (N. Virginia), US East (Ohio), US West (Oregon), Europe (Ireland), and Asia Pacific (Tokyo). 20 per Region per account in all other Regions. You can request a quota increase.
Contributor Insights API requests	GetInsightRuleReport has a quota of 20 transactions per second (TPS), per Region. You can request a quota increase. The following APIs have a quota of 1 TPS per Region. This quota cannot be changed. DeleteInsightRules DescribeInsightRules DisableInsightRules EnableInsightRules PutInsightRule
Contributor Insights rules	100 rules per account. You can request a quota increase.
Custom metrics	No quota.
Dashboards	Up to 500 metrics per dashboard widget. Up to 2500 metrics per dashboard, across all widgets. These quotas include all metrics retrieved for use in metric math functions, even if those metrics are not displayed on the graph. These quotas cannot be changed.
DescribeAlarms	9 transactions per second (TPS) per Region. The maximum number of operation requests you can make per second without being throttled. You can request a quota increase.
DeleteAlarms request DescribeAlarmHistory request DescribeAlarmsForMetric request DisableAlarmActions request EnableAlarmActions request SetAlarmState request	3 TPS per Region for each of these operations. The maximum number of operation requests you can make per second without being throttled. These quotas cannot be changed.
DeleteDashboards request GetDashboard request ListDashboards request PutDashboard request	10 TPS per Region for each of these operations. The maximum number of operation requests you can make per second without being throttled. These quotas cannot be changed.
PutAnomalyDetector DescribeAnomalyDetectors	10 TPS per Region. The maximum number of operation requests you can make per second without being throttled.
DeleteAnomalyDetector	5 TPS per Region. The maximum number of operation requests you can make per second without being throttled.
Dimensions	10/metric. This quota cannot be changed.
GetMetricData	50 TPS per Region. The maximum number of operation requests you can make per second without being throttled. You can request a quota increase. 180,000 Datapoints Per Second (DPS) if the StartTime used in the API request is less than or equal to three hours from current time. 396,000 DPS if the StartTime is more than three hours from current time. This is the maximum number of datapoints you can request per second using one or more API calls without being throttled. This quota cannot be changed. The DPS is calculated based on estimated data points, not actual data points. The data point estimate is caculated using the requested time range, period, and retention period. This means that if the actual data points in the requested metrics are sparse or empty, throttling still occurs if the estimated data points exceed the quota. The DPS quota is per-Region.
GetMetricData	A single GetMetricData call can include as many as 500 MetricDataQuery structures. This quota cannot be changed.
GetMetricStatistics	400 TPS per Region. The maximum number of operation requests you can make per second without being throttled. You can request a quota increase.
GetMetricWidgetImage	Up to 500 metrics per image. This quota cannot be changed. 20 TPS per Region. The maximum number of operation requests you can make per second without being throttled. This quota cannot be changed.
ListMetrics	25 TPS per Region. The maximum number of operation requests you can make per second without being throttled. You can request a quota increase.
Metric data storage	15 months. This quota cannot be changed.
Metric data values	The value of a metric data point must be within the range of -2^360 to 2^360. Special values (for example, NaN, +Infinity, -Infinity) are not supported. This quota cannot be changed.
MetricDatum items	20/PutMetricData request. A MetricDatum object can contain a single value or a StatisticSet object representing many values. This quota cannot be changed.
Metrics	10/month/customer for free.
Period	Maximum value is one day (86,400 seconds). This quota cannot be changed.
PutMetricAlarm request	3 TPS per Region. The maximum number of operation requests you can make per second without being throttled. You can request a quota increase.
PutMetricData request	40 KB for HTTP POST requests. PutMetricData can handle 150 transactions per second (TPS), which is the maximum number of operation requests you can make per second without being throttled. You can request a quota increase.
Amazon SNS email notifications	1,000/month/customer for free.

For more information, see CloudWatch Quotas in the Amazon CloudWatch User Guide.