Lambda MCP Server

Lambda MCP Server

A Model Context Protocol server for deploying and managing AWS Lambda functions.

Features

• Deploy Lambda functions through MCP interface
• List existing Lambda functions
• Guided deployment prompts
• Type-safe configuration validation
• AWS Lambda integration

Prerequisites

• Node.js (v16 or higher)
• AWS Account with appropriate permissions
• AWS CLI configured with credentials

Installation

npm install

Configuration

Create a .env file in the root directory:

AWS_REGION=us-east-1

Usage

Development Mode

npm run dev

Production Mode

npm run build
npm start

MCP Tools

Deploy Lambda Function

// Example deployment configuration
const config = {
  functionName: "my-function",
  runtime: "nodejs18.x",
  handler: "index.handler",
  memorySize: 128,
  timeout: 30,
  roleArn: "arn:aws:iam::123456789012:role/lambda-role",
  environment: {
    NODE_ENV: "production"
  }
};

// Base64 encoded zip file containing the function code
const code = "base64-encoded-zip-file";

// Deploy using the MCP tool
const result = await client.callTool("deploy", { config, code });

List Functions

// List all Lambda functions
const result = await client.callTool("listFunctions", {});

Guided Deployment

// Start a guided deployment process
const prompt = await client.getPrompt("guidedDeploy", {
  functionName: "my-function",
  runtime: "nodejs18.x"
});

Protocol Interface

The server implements the following MCP tools:

• deploy: Deploy a new Lambda function
• listFunctions: List all Lambda functions
• guidedDeploy: Interactive deployment guidance

Security Considerations

• Always use HTTPS in production
• Implement proper authentication and authorization
• Rotate AWS credentials regularly
• Use environment variables for sensitive information
• Implement proper error handling and logging

License

MIT