# Call
<a name="API_Call"></a>

A request for the client to execute a specific tool with given parameters.

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

 ** callId **   <a name="novaact-Type-Call-callId"></a>
A unique identifier for this tool call, used to match results back to requests.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 100.  
Required: Yes

 ** input **   <a name="novaact-Type-Call-input"></a>
The input parameters for the tool call, formatted according to the tool's schema.  
Type: JSON value  
Required: Yes

 ** name **   <a name="novaact-Type-Call-name"></a>
The name of the tool to invoke, following the pattern 'tool.\$1toolName\$1' or 'browser.\$1browserAction\$1'.  
Type: String  
Required: Yes

## See Also
<a name="API_Call_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/nova-act-2025-08-22/Call) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/nova-act-2025-08-22/Call) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/nova-act-2025-08-22/Call)