# Amazon Augmented AI endpoints and quotas

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

| Region Name | Region | Endpoint | Protocol | 
| --- | --- | --- | --- | 
| US East (Ohio) | us-east-2 | a2i-runtime.sagemaker.us-east-2.amazonaws.com | HTTP and HTTPS | 
| US East (N. Virginia) | us-east-1 | a2i-runtime.sagemaker.us-east-1.amazonaws.com | HTTP and HTTPS | 
| US West (Oregon) | us-west-2 | a2i-runtime.sagemaker.us-west-2.amazonaws.com | HTTP and HTTPS | 
| Asia Pacific (Mumbai) | ap-south-1 | a2i-runtime.sagemaker.ap-south-1.amazonaws.com | HTTP and HTTPS | 
| Asia Pacific (Seoul) | ap-northeast-2 | a2i-runtime.sagemaker.ap-northeast-2.amazonaws.com | HTTP and HTTPS | 
| Asia Pacific (Singapore) | ap-southeast-1 | a2i-runtime.sagemaker.ap-southeast-1.amazonaws.com | HTTP and HTTPS | 
| Asia Pacific (Sydney) | ap-southeast-2 | a2i-runtime.sagemaker.ap-southeast-2.amazonaws.com | HTTP and HTTPS | 
| Asia Pacific (Tokyo) | ap-northeast-1 | a2i-runtime.sagemaker.ap-northeast-1.amazonaws.com | HTTP and HTTPS | 
| Canada (Central) | ca-central-1 | a2i-runtime.sagemaker.ca-central-1.amazonaws.com | HTTP and HTTPS | 
| Europe (Frankfurt) | eu-central-1 | a2i-runtime.sagemaker.eu-central-1.amazonaws.com | HTTP and HTTPS | 
| Europe (Ireland) | eu-west-1 | a2i-runtime.sagemaker.eu-west-1.amazonaws.com | HTTP and HTTPS | 
| Europe (London) | eu-west-2 | a2i-runtime.sagemaker.eu-west-2.amazonaws.com | HTTP and HTTPS | 
## Service quotas

| Name | Default | Adjustable | 
| --- | --- | --- | 
| Flow definitions | 100 | [Yes](https://console.aws.amazon.com/servicequotas/home/services/sagemaker/quotas/L-73C1B556) | 
| Worker task templates (human task UIs) | 100 | [Yes](https://console.aws.amazon.com/servicequotas/home/services/sagemaker/quotas/L-3036C9CA) | 
| *In-flight* human loops per flow definition (private or vendor work team) † | 5,000 | No | 
| *In-flight* human loops per flow definition (Amazon Mechanical Turk work team) † | 1,000 | No | 
† Human loops are considered *in-flight* when their status is `InProgress` or `Stopping`.</div><div class="naked_ctrl">
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