The AWS CDK MCP Server is a tool designed to help developers implement AWS infrastructure as code following best practices. It provides guidance on CDK patterns, security compliance through CDK Nag integration, and specialized support for Lambda layers and Bedrock Agent implementations.
Before installing the CDK MCP Server, you'll need:
Install the uv
package manager:
# Follow installation instructions at
# https://docs.astral.sh/uv/getting-started/installation/
Install Python 3.10 using uv:
uv python install 3.10
Install AWS CDK CLI:
npm install -g aws-cdk
You can install the server using one of these methods:
For command line installation, configure your MCP client by editing ~/.aws/amazonq/mcp.json
:
{
"mcpServers": {
"awslabs.cdk-mcp-server": {
"command": "uvx",
"args": ["awslabs.cdk-mcp-server@latest"],
"env": {
"FASTMCP_LOG_LEVEL": "ERROR"
},
"disabled": false,
"autoApprove": []
}
}
}
If you prefer using Docker:
Build the Docker image:
docker build -t awslabs/cdk-mcp-server .
Configure your MCP client with Docker support:
{
"mcpServers": {
"awslabs.cdk-mcp-server": {
"command": "docker",
"args": [
"run",
"--rm",
"--interactive",
"--env",
"FASTMCP_LOG_LEVEL=ERROR",
"awslabs/cdk-mcp-server:latest"
],
"env": {},
"disabled": false,
"autoApprove": []
}
}
}
The MCP Server provides several specialized tools:
The typical CDK implementation workflow with this server:
Start with CDKGeneralGuidance
for general best practices
Initialize your CDK app with cdk init app
Choose your implementation approach:
GetAwsSolutionsConstructPattern
SearchGenAICDKConstructs
If using Lambda functions with layers, use LambdaLayerDocumentationProvider
Run cdk synth
to check for issues
Address CDK Nag warnings with ExplainCDKNagRule
Use CheckCDKNagSuppressions
to review suppressions
Deploy your application with cdk deploy
When creating Bedrock Agents with Action Groups using Lambda:
BedrockAgentResolver
from AWS Lambda PowertoolsGenerateBedrockAgentSchema
tool to generate an OpenAPI schemaopenapi.json
file will be createdbedrock.ApiSchema.fromLocalAsset()
The server provides access to various resource types:
cdk-nag://rules/{rule_pack}
aws-solutions-constructs://{pattern_name}
genai-cdk-constructs://{construct_type}/{construct_name}
lambda-powertools://{topic}
When using the CDK MCP Server:
CheckCDKNagSuppressions
tool to verify no unauthorized suppressionsAlways conduct your own security assessment to ensure compliance with your organization's security standards and relevant regulations.
To add this MCP server to Claude Code, run this command in your terminal:
claude mcp add-json "awslabs-cdk-mcp-server" '{"command":"uvx","args":["awslabs.cdk-mcp-server@latest"],"env":{"FASTMCP_LOG_LEVEL":"ERROR"},"disabled":false,"autoApprove":[]}'
See the official Claude Code MCP documentation for more details.
There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json
file so that it is available in all of your projects.
If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json
file.
To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".
When you click that button the ~/.cursor/mcp.json
file will be opened and you can add your server like this:
{
"mcpServers": {
"awslabs.cdk-mcp-server": {
"command": "uvx",
"args": [
"awslabs.cdk-mcp-server@latest"
],
"env": {
"FASTMCP_LOG_LEVEL": "ERROR"
},
"disabled": false,
"autoApprove": []
}
}
}
To add an MCP server to a project you can create a new .cursor/mcp.json
file or add it to the existing one. This will look exactly the same as the global MCP server example above.
Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.
The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.
You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.
To add this MCP server to Claude Desktop:
1. Find your configuration file:
~/Library/Application Support/Claude/claude_desktop_config.json
%APPDATA%\Claude\claude_desktop_config.json
~/.config/Claude/claude_desktop_config.json
2. Add this to your configuration file:
{
"mcpServers": {
"awslabs.cdk-mcp-server": {
"command": "uvx",
"args": [
"awslabs.cdk-mcp-server@latest"
],
"env": {
"FASTMCP_LOG_LEVEL": "ERROR"
},
"disabled": false,
"autoApprove": []
}
}
}
3. Restart Claude Desktop for the changes to take effect