# A2aDescriptor
<a name="API_A2aDescriptor"></a>

 The A2A (Agent-to-Agent) descriptor configuration for a registry record.

## Contents
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 ** agentCard **   <a name="BedrockAgentCore-Type-A2aDescriptor-agentCard"></a>
 The agent card definition that describes the agent's capabilities and interface.  
Type: [AgentCardDefinition](API_AgentCardDefinition.md) object  
Required: Yes

## See Also
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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-2024-02-28/A2aDescriptor) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/bedrock-agentcore-2024-02-28/A2aDescriptor) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/bedrock-agentcore-2024-02-28/A2aDescriptor)