# Comprehend API Reference
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This document provides detailed information about the Amazon Comprehend API actions and their parameters.

For information about the IAM access control permissions you need to use this API, see [Using IAM identity policies to manage permissions](https://docs.aws.amazon.com/comprehend/latest/dg/security_iam_id-based-policy-examples.html).

You can use [AWS SDKs](https://aws.amazon.com/tools/#sdk) to access Amazon Comprehend APIs using your favorite programming language. The SDKs automatically perform useful tasks for you, such as:
+ Cryptographically sign your service requests
+ Retry requests
+ Handle error responses

The following resources provide additional information about the Amazon Comprehend API.
+ *Amazon Web Services General Reference*
  + [Amazon Comprehend Endpoints for each region](https://docs.aws.amazon.com/general/latest/gr/comprehend.html).
+ *AWS Command Line Interface*
  + [ Amazon Comprehend CLI commands](https://docs.aws.amazon.com/cli/latest/reference/comprehend/index.html).

**Topics**
+ [Actions](API_Operations.md)
+ [Data Types](API_Types.md)
+ [Common Parameters](CommonParameters.md)
+ [Common Error Types](CommonErrors.md)