# ResourceTag
<a name="API_billing_ResourceTag"></a>

 The tag structure that contains a tag key and value. 

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

 ** key **   <a name="awscostmanagement-Type-billing_ResourceTag-key"></a>
 The key that's associated with the tag.   
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Required: Yes

 ** value **   <a name="awscostmanagement-Type-billing_ResourceTag-value"></a>
 The value that's associated with the tag.   
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 256.  
Required: No

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

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/billing-2023-09-07/ResourceTag) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/billing-2023-09-07/ResourceTag) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/billing-2023-09-07/ResourceTag)