# Data retrieval APIs for AWS Data Pipeline
<a name="awsdatapipeline"></a>

AWS Data Pipeline provides the following APIs for data retrieval.


****  

| Actions | Description | Access level | 
| --- | --- | --- | 
| <a name="datapipeline-DescribeObjects"></a>[https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_DescribeObjects.html](https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_DescribeObjects.html) | Get the object definitions for a set of objects associated with the pipeline | Read | 
| <a name="datapipeline-DescribePipelines"></a>[https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_DescribePipelines.html](https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_DescribePipelines.html) | Retrieves metadata about one or more pipelines | Read | 
| <a name="datapipeline-EvaluateExpression"></a>[https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_EvaluateExpression.html](https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_EvaluateExpression.html) | Task runners to call EvaluateExpression, to evaluate a string in the context of the specified object | Read | 
| <a name="datapipeline-GetAccountLimits"></a>[https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_GetAccountLimits.html](https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_GetAccountLimits.html) | Call GetAccountLimits | List | 
| <a name="datapipeline-GetPipelineDefinition"></a>[https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_GetPipelineDefinition.html](https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_GetPipelineDefinition.html) | Gets the definition of the specified pipeline | Read | 
| <a name="datapipeline-ListPipelines"></a>[https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_ListPipelines.html](https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_ListPipelines.html) | List the pipeline identifiers for all active pipelines that you have permission to access | List | 
| <a name="datapipeline-QueryObjects"></a>[https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_QueryObjects.html](https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_QueryObjects.html) | Query the specified pipeline for the names of objects that match the specified set of conditions | Read | 
| <a name="datapipeline-ValidatePipelineDefinition"></a>[https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_ValidatePipelineDefinition.html](https://docs.aws.amazon.com/datapipeline/latest/APIReference/API_ValidatePipelineDefinition.html) | Validate the specified pipeline definition to ensure that it is well formed and can be run without error | Read |