# A2aDescriptor


The Agent-to-Agent (A2A) protocol descriptor for a registry record. Contains the agent card definition as defined by the A2A protocol specification.

## Contents


 ** agentCard **   <a name="bedrockagentcorecontrol-Type-A2aDescriptor-agentCard"></a>
The agent card definition for the A2A agent, as defined by the A2A protocol specification.  
Type: [AgentCardDefinition](API_AgentCardDefinition.md) object  
Required: No

## See Also


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/bedrock-agentcore-control-2023-06-05/A2aDescriptor) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/bedrock-agentcore-control-2023-06-05/A2aDescriptor) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/bedrock-agentcore-control-2023-06-05/A2aDescriptor)