# Amazon Managed Service for Prometheus endpoints and quotas
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To connect programmatically to an AWS service, you use an endpoint. AWS services offer the following endpoint types in some or all of the AWS Regions that the service supports: IPv4 endpoints, dual-stack endpoints, and FIPS endpoints. Some services provide global endpoints. For more information, see [AWS service endpoints](rande.md).

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](aws_service_limits.md).

The following are the service endpoints and service quotas for this service.

## Service endpoints
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Amazon Managed Service for Prometheus includes control plane endpoints (to perform workspace management tasks) and data plane endpoints (to work with Prometheus-compatible data in a workspace instance). Control plane endpoints start with `aps.*`, and dataplane endpoints start with `aps-workspaces.*`. Endpoints that end in `.amazonaws.com` support IPv4, and endpoints that end in `.api.aws` support both IPv4 and IPv6.

[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/general/latest/gr/prometheus-service.html)

## Service quotas
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Amazon Managed Service for Prometheus has the following quotas. Amazon Managed Service for Prometheus vends [CloudWatch usage metrics](https://docs.aws.amazon.com/prometheus/latest/userguide/AMP-CW-usage-metrics.html) to monitor Prometheus resource usage. Using the CloudWatch usage metrics alarm feature, you can monitor Prometheus resources and usage to prevent limit errors.

As your projects and workspaces grow, the most common quotas that you may need to monitor or request an increase for are: **Active series per workspace**, **Ingestion rate per workspace**, and **Ingestion burst size per workspace**.

For all adjustable quotas, you can request a quota increase by selecting the link in the **Adjustable** column, or by [requesting a quota increase](https://console.aws.amazon.com/support/home#/case/create?issueType=service-limit-increase).

**Note**  
Unless otherwise noted, these quotas are per workspace.

[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/general/latest/gr/prometheus-service.html)

### Additional limits on ingested data
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Amazon Managed Service for Prometheus also has the following additional requirements for data ingested into the workspace. These are not adjustable.
+ Metric samples older than 1 hour are refused from being ingested.
+ Every sample and metadata must have a metric name.