# Tag
<a name="API_Tag"></a>

The list of tags to be added to the specified topic.

## Contents
<a name="API_Tag_Contents"></a>

 ** Key **   
The required key portion of the tag.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Required: Yes

 ** Value **   
The optional value portion of the tag.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 256.  
Required: Yes

## See Also
<a name="API_Tag_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/sns-2010-03-31/Tag) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/sns-2010-03-31/Tag) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/sns-2010-03-31/Tag) 

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for Amazon SNS. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query sns` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).