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# AWS::BedrockAgentCore::GatewayTarget McpLambdaTargetConfiguration
<a name="aws-properties-bedrockagentcore-gatewaytarget-mcplambdatargetconfiguration"></a>

The Lambda configuration for a Model Context Protocol target. This structure defines how the gateway uses a Lambda function to communicate with the target.

## Syntax
<a name="aws-properties-bedrockagentcore-gatewaytarget-mcplambdatargetconfiguration-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-bedrockagentcore-gatewaytarget-mcplambdatargetconfiguration-syntax.json"></a>

```
{
  "[LambdaArn](#cfn-bedrockagentcore-gatewaytarget-mcplambdatargetconfiguration-lambdaarn)" : {{String}},
  "[ToolSchema](#cfn-bedrockagentcore-gatewaytarget-mcplambdatargetconfiguration-toolschema)" : {{ToolSchema}}
}
```

### YAML
<a name="aws-properties-bedrockagentcore-gatewaytarget-mcplambdatargetconfiguration-syntax.yaml"></a>

```
  [LambdaArn](#cfn-bedrockagentcore-gatewaytarget-mcplambdatargetconfiguration-lambdaarn): {{String}}
  [ToolSchema](#cfn-bedrockagentcore-gatewaytarget-mcplambdatargetconfiguration-toolschema): {{
    ToolSchema}}
```

## Properties
<a name="aws-properties-bedrockagentcore-gatewaytarget-mcplambdatargetconfiguration-properties"></a>

`LambdaArn`  <a name="cfn-bedrockagentcore-gatewaytarget-mcplambdatargetconfiguration-lambdaarn"></a>
The Amazon Resource Name (ARN) of the Lambda function. This function is invoked by the gateway to communicate with the target.  
*Required*: Yes  
*Type*: String  
*Pattern*: `^arn:(aws[a-zA-Z-]*)?:lambda:([a-z]{2}(-gov)?-[a-z]+-\d{1}):(\d{12}):function:([a-zA-Z0-9-_.]+)(:(\$LATEST|[a-zA-Z0-9-_]+))?$`  
*Minimum*: `1`  
*Maximum*: `170`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ToolSchema`  <a name="cfn-bedrockagentcore-gatewaytarget-mcplambdatargetconfiguration-toolschema"></a>
The tool schema for the Lambda function. This schema defines the structure of the tools that the Lambda function provides.  
*Required*: Yes  
*Type*: [ToolSchema](aws-properties-bedrockagentcore-gatewaytarget-toolschema.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)