# Data retrieval APIs for Amazon Simple Workflow Service
<a name="amazonsimpleworkflowservice"></a>

Amazon Simple Workflow Service provides the following APIs for data retrieval.


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| Actions | Description | Access level | 
| --- | --- | --- | 
| <a name="swf-CountClosedWorkflowExecutions"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_CountClosedWorkflowExecutions.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_CountClosedWorkflowExecutions.html) | Return the number of closed workflow executions within the given domain that meet the specified filtering criteria | Read | 
| <a name="swf-CountOpenWorkflowExecutions"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_CountOpenWorkflowExecutions.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_CountOpenWorkflowExecutions.html) | Return the number of open workflow executions within the given domain that meet the specified filtering criteria | Read | 
| <a name="swf-CountPendingActivityTasks"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_CountPendingActivityTasks.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_CountPendingActivityTasks.html) | Return the estimated number of activity tasks in the specified task list | Read | 
| <a name="swf-CountPendingDecisionTasks"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_CountPendingDecisionTasks.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_CountPendingDecisionTasks.html) | Return the estimated number of decision tasks in the specified task list | Read | 
| <a name="swf-DescribeActivityType"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_DescribeActivityType.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_DescribeActivityType.html) | Return information about the specified activity type | Read | 
| <a name="swf-DescribeDomain"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_DescribeDomain.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_DescribeDomain.html) | Return information about the specified domain, including its description and status | Read | 
| <a name="swf-DescribeWorkflowExecution"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_DescribeWorkflowExecution.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_DescribeWorkflowExecution.html) | Return information about the specified workflow execution including its type and some statistics | Read | 
| <a name="swf-DescribeWorkflowType"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_DescribeWorkflowType.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_DescribeWorkflowType.html) | Return information about the specified workflow type | Read | 
| <a name="swf-GetWorkflowExecutionHistory"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_GetWorkflowExecutionHistory.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_GetWorkflowExecutionHistory.html) | Return the history of the specified workflow execution | Read | 
| <a name="swf-ListActivityTypes"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_ListActivityTypes.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_ListActivityTypes.html) | Return information about all activities registered in the specified domain that match the specified name and registration status | List | 
| <a name="swf-ListClosedWorkflowExecutions"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_ListClosedWorkflowExecutions.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_ListClosedWorkflowExecutions.html) | Return a list of closed workflow executions in the specified domain that meet the filtering criteria | List | 
| <a name="swf-ListDomains"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_ListDomains.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_ListDomains.html) | Return the list of domains registered in the account | List | 
| <a name="swf-ListOpenWorkflowExecutions"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_ListOpenWorkflowExecutions.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_ListOpenWorkflowExecutions.html) | Return a list of open workflow executions in the specified domain that meet the filtering criteria | List | 
| <a name="swf-ListTagsForResource"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_ListTagsForResource.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_ListTagsForResource.html) | List tags for an AWS SWF resource | List | 
| <a name="swf-ListWorkflowTypes"></a>[https://docs.aws.amazon.com/amazonswf/latest/apireference/API_ListWorkflowTypes.html](https://docs.aws.amazon.com/amazonswf/latest/apireference/API_ListWorkflowTypes.html) | Return information about workflow types in the specified domain | List |