AWS Serverless MCP Server now supports tools for AWS Lambda event source mappings (ESM)

Published
October 30, 2025
https://aws.amazon.com/about-aws/whats-new/2025/10/aws-serverless-mcp-server-tools-lambda-esm

AWS Serverless MCP Server Updates

The AWS Serverless Model Context Protocol (MCP) Server now supports specialized tools for AWS Lambda event source mappings (ESM), enhancing the development experience for serverless applications.

New Features

  • ESM guidance tool for contextual guidance across all supported event sources.
  • ESM optimization tool for analyzing configuration tradeoffs.
  • ESM Kafka troubleshooting tool for specialized diagnostics with Amazon MSK and self-managed Apache Kafka clusters.

What to do

  • Explore the new ESM tools to streamline your serverless application setup and troubleshooting.
  • Visit the launch blog post for more information.
  • Check the documentation for detailed guidance.
  • Download the open-source MCP server from the GitHub repository.

Source: AWS release notes




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