# Amazon Comprehend endpoints and quotas
<a name="comprehend"></a>

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
<a name="comprehend_region"></a>


| Region Name | Region | Endpoint | Protocol | 
| --- | --- | --- | --- | 
| US East (Ohio) | us-east-2 |  comprehend.us-east-2.amazonaws.com <br /> comprehend.us-east-2.api.aws <br /> comprehend-fips.us-east-2.amazonaws.com <br /> comprehend-fips.us-east-2.api.aws  | HTTPS<br />HTTPS<br />HTTPS<br />HTTPS | 
| US East (N. Virginia) | us-east-1 |  comprehend.us-east-1.amazonaws.com <br /> comprehend-fips.us-east-1.amazonaws.com <br /> comprehend-fips.us-east-1.api.aws <br /> comprehend.us-east-1.api.aws  | HTTPS<br />HTTPS<br />HTTPS<br />HTTPS | 
| US West (Oregon) | us-west-2 |  comprehend.us-west-2.amazonaws.com <br /> comprehend-fips.us-west-2.amazonaws.com <br /> comprehend.us-west-2.api.aws <br /> comprehend-fips.us-west-2.api.aws  | HTTPS<br />HTTPS<br />HTTPS<br />HTTPS | 
| Asia Pacific (Mumbai) | ap-south-1 |  comprehend.ap-south-1.amazonaws.com <br /> comprehend.ap-south-1.api.aws  | HTTPS<br />HTTPS | 
| Asia Pacific (Seoul) | ap-northeast-2 |  comprehend.ap-northeast-2.amazonaws.com <br /> comprehend.ap-northeast-2.api.aws  | HTTPS<br />HTTPS | 
| Asia Pacific (Singapore) | ap-southeast-1 |  comprehend.ap-southeast-1.amazonaws.com <br /> comprehend.ap-southeast-1.api.aws  | HTTPS<br />HTTPS | 
| Asia Pacific (Sydney) | ap-southeast-2 |  comprehend.ap-southeast-2.amazonaws.com <br /> comprehend.ap-southeast-2.api.aws  | HTTPS<br />HTTPS | 
| Asia Pacific (Tokyo) | ap-northeast-1 |  comprehend.ap-northeast-1.amazonaws.com <br /> comprehend.ap-northeast-1.api.aws  | HTTPS<br />HTTPS | 
| Canada (Central) | ca-central-1 |  comprehend.ca-central-1.amazonaws.com <br /> comprehend.ca-central-1.api.aws <br /> comprehend-fips.ca-central-1.amazonaws.com <br /> comprehend-fips.ca-central-1.api.aws  | HTTPS<br />HTTPS<br />HTTPS<br />HTTPS | 
| Europe (Frankfurt) | eu-central-1 |  comprehend.eu-central-1.amazonaws.com <br /> comprehend.eu-central-1.api.aws  | HTTPS<br />HTTPS | 
| Europe (Ireland) | eu-west-1 |  comprehend.eu-west-1.amazonaws.com <br /> comprehend.eu-west-1.api.aws  | HTTPS<br />HTTPS | 
| Europe (London) | eu-west-2 |  comprehend.eu-west-2.amazonaws.com <br /> comprehend.eu-west-2.api.aws  | HTTPS<br />HTTPS | 
|  AWS GovCloud (US-West) | us-gov-west-1 |  comprehend.us-gov-west-1.amazonaws.com <br /> comprehend-fips.us-gov-west-1.api.aws <br /> comprehend-fips.us-gov-west-1.amazonaws.com <br /> comprehend.us-gov-west-1.api.aws  | HTTPS<br />HTTPS<br />HTTPS<br />HTTPS | 

## Service quotas
<a name="comprehend-quotas"></a>


| Name | Default | Adjustable | Description | 
| --- | --- | --- | --- | 
| CreateDocumentClassifier max active jobs | Each supported Region: 10 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-94042C4D)  | The maximum number of active jobs for API CreateDocumentClassifier allowed per account, in the current Region | 
| CreateDocumentClassifier throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of CreateDocumentClassifier requests allowed per account per second, in the current Region | 
| CreateEntityRecognizer max active jobs | Each supported Region: 10 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-4BDB4A9D)  | The maximum number of active jobs for API CreateEntityRecognizer allowed per account, in the current Region | 
| CreateEntityRecognizer throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of CreateEntityRecognizer requests allowed per account per second, in the current Region | 
| CreateFlywheel max active flywheels | Each supported Region: 20 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-AE5B911F)  | The maximum number of flywheels that can be active concurrently per account, in the current Region | 
| CreateFlywheel max concurrent | Each supported Region: 10 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-8F55B05C)  | The maximum number of flywheels that can be created concurrently per account, in the current region | 
| Datasets max concurrent creates | Each supported Region: 10 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-0C094DCD)  | The maximum number of datasets in creating state per account, in the current Region | 
| DeleteDocumentClassifier throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of DeleteDocumentClassifier requests allowed per account per second, in the current Region | 
| DeleteEntityRecognizer throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of DeleteEntityRecognizer requests allowed per account per second, in the current Region | 
| DescribeDocumentClassificationJob throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of DescribeDocumentClassificationJob requests allowed per account per second, in the current Region | 
| DescribeDocumentClassifier throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of DescribeDocumentClassifier requests allowed per account per second, in the current Region | 
| DescribeDominantLanguageDetectionJob throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of DescribeDominantLanguageDetectionJob requests allowed per account per second, in the current Region | 
| DescribeEntitiesDetectionJob throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of DescribeEntitiesDetectionJob requests allowed per account per second, in the current Region | 
| DescribeEntityRecognizer throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of DescribeEntityRecognizer requests allowed per account per second, in the current Region | 
| DescribeEventsDetectionJob throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of DescribeEventsDetectionJob requests allowed per account per second, in the current Region | 
| DescribeKeyPhrasesDetectionJob throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of DescribeKeyPhrasesDetectionJob requests allowed per account per second, in the current Region | 
| DescribePiiEntitiesDetectionJob throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of DescribePiiEntitiesDetectionJob requests allowed per account per second, in the current Region | 
| DescribeSentimentDetectionJob throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of DescribeSentimentDetectionJob requests allowed per account per second, in the current Region | 
| DescribeTargetedSentimentDetectionJob throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of DescribeTargetedSentimentDetectionJob requests allowed per account per second, in the current Region | 
| DescribeTopicsDetectionJob throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of DescribeTopicsDetectionJob requests allowed per account per second, in the current Region | 
| Endpoints max active endpoints | Each supported Region: 20 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-55642075)  | The maximum number of active endpoints allowed per account in the current Region | 
| Endpoints max inference units per account | Each supported Region: 200 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-2A73DEBC)  | The maximum number of inference units allowed per account in the current Region | 
| Endpoints max inference units per endpoint | Each supported Region: 50 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-70EC2949)  | The maximum number of inference units allowed per endpoint in the current Region | 
| ListDocumentClassificationJobs throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of ListDocumentClassificationJobs requests allowed per account per second, in the current Region | 
| ListDocumentClassifiers throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of ListDocumentClassifiers requests allowed per account per second, in the current Region | 
| ListDominantLanguageDetectionJobs throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of ListDominantLanguageDetectionJobs requests allowed per account per second, in the current Region | 
| ListEntitiesDetectionJobs throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of ListEntitiesDetectionJobs requests allowed per account per second, in the current Region | 
| ListEntityRecognizers throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of ListEntityRecognizers requests allowed per account per second, in the current Region | 
| ListEventsDetectionJobs throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of ListEventsDetectionJobs requests allowed per account per second, in the current Region | 
| ListKeyPhrasesDetectionJobs throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of ListKeyPhrasesDetectionJobs requests allowed per account per second, in the current Region | 
| ListPiiEntitiesDetectionJobs throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of ListPiiEntitiesDetectionJobs requests allowed per account per second, in the current Region | 
| ListSentimentDetectionJobs throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of ListSentimentDetectionJobs requests allowed per account per second, in the current Region | 
| ListTagsForResource throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of ListTagsForResource requests allowed per account per second, in the current Region | 
| ListTargetedSentimentDetectionJobs throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of ListTargetedSentimentDetectionJobs requests allowed per account per second, in the current Region | 
| ListTopicsDetectionJobs throttle limit in transactions per second | Each supported Region: 10 | No | The maximum number of ListTopicsDetectionJobs requests allowed per account per second, in the current Region | 
| MaxTestDatasets per flywheel | Each supported Region: 50 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-1666A7DF)  | The maximum number of test datasets per flywheel | 
| MaxTrainDatasets per flywheel | Each supported Region: 50 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-7CC66BB8)  | The maximum number of training datasets per flywheel | 
| StartDocumentClassificationJob max active jobs | Each supported Region: 10 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-E65FE76A)  | The maximum number of active jobs for API StartDocumentClassificationJob allowed per account, in the current Region | 
| StartDocumentClassificationJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StartDocumentClassificationJob requests allowed per account per second, in the current Region | 
| StartDominantLanguageDetectionJob max active jobs | Each supported Region: 10 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-7AC96081)  | The maximum number of active jobs for API StartDominantLanguageDetectionJob allowed per account, in the current Region | 
| StartDominantLanguageDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StartDominantLanguageDetectionJob requests allowed per account per second, in the current Region | 
| StartEntitiesDetectionJob max active jobs | Each supported Region: 10 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-2B8ECCAB)  | The maximum number of active jobs for API StartEntitiesDetectionJob allowed per account, in the current Region | 
| StartEntitiesDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StartEntitiesDetectionJob requests allowed per account per second, in the current Region | 
| StartEventsDetectionJob max active jobs | Each supported Region: 10 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-471B41D6)  | The maximum number of active jobs for API StartEventsDetectionJob allowed per account, in the current Region | 
| StartEventsDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StartEventsDetectionJob requests allowed per account per second, in the current Region | 
| StartFlywheelIteration max concurrent flywheel iterations | Each supported Region: 10 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-C5F124CF)  | The maximum number of flywheel iterations that you can run concurrently per account, in the current Region | 
| StartKeyPhrasesDetectionJob max active jobs | Each supported Region: 10 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-BFFD1421)  | The maximum number of active jobs for API StartKeyPhrasesDetectionJob allowed per account, in the current Region | 
| StartKeyPhrasesDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StartKeyPhrasesDetectionJob requests allowed per account per second, in the current Region | 
| StartPiiEntitiesDetectionJob max active jobs | Each supported Region: 10 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-D88E2B98)  | The maximum number of active jobs for API StartPiiEntitiesDetectionJob allowed per account, in the current Region | 
| StartPiiEntitiesDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StartPiiEntitiesDetectionJob requests allowed per account per second, in the current Region | 
| StartSentimentDetectionJob max active jobs | Each supported Region: 10 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-32ABBB12)  | The maximum number of active jobs for API StartSentimentDetectionJob allowed per account, in the current Region | 
| StartSentimentDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StartSentimentDetectionJob requests allowed per account per second, in the current Region | 
| StartTargetedSentimentDetectionJob max active jobs | Each supported Region: 10 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-358FBC4F)  | The maximum number of active jobs for API StartTargetedSentimentDetectionJob allowed per account, in the current Region | 
| StartTargetedSentimentDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StartTargetedSentimentDetectionJob requests allowed per account per second, in the current Region | 
| StartTopicsDetectionJob max active jobs | Each supported Region: 10 |  [Yes](https://console.aws.amazon.com/servicequotas/home/services/comprehend/quotas/L-F2BED405)  | The maximum number of active jobs for API StartTopicsDetectionJob allowed per account, in the current Region | 
| StartTopicsDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StartTopicsDetectionJob requests allowed per account per second, in the current Region | 
| StopDominantLanguageDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StopDominantLanguageDetectionJob requests allowed per account per second, in the current Region | 
| StopEntitiesDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StopEntitiesDetectionJob requests allowed per account per second, in the current Region | 
| StopEventsDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StopEventsDetectionJob requests allowed per account per second, in the current Region | 
| StopKeyPhrasesDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StopKeyPhrasesDetectionJob requests allowed per account per second, in the current Region | 
| StopPiiEntitiesDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StopPiiEntitiesDetectionJob requests allowed per account per second, in the current Region | 
| StopSentimentDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StopSentimentDetectionJob requests allowed per account per second, in the current Region | 
| StopTargetedSentimentDetectionJob throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StopTargetedSentimentDetectionJob requests allowed per account per second, in the current Region | 
| StopTrainingDocumentClassifier throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StopTrainingDocumentClassifier requests allowed per account per second, in the current Region | 
| StopTrainingEntityRecognizer throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of StopTrainingEntityRecognizer requests allowed per account per second, in the current Region | 
| TagResource throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of TagResource requests allowed per account per second, in the current Region | 
| UntagResource throttle limit in transactions per second | Each supported Region: 1 | No | The maximum number of UntagResource requests allowed per account per second, in the current Region | 

For more information, see [Guidelines and Quotas](https://docs.aws.amazon.com/comprehend/latest/dg/guidelines-and-limits.html) in the *Amazon Comprehend Developer Guide*.