AWS MCP Server adds a serverless capability for AWS Lambda functions
AWS MCP Server now offers serverless diagnostics for AWS Lambda functions, enabling AI coding agents to troubleshoot issues and analyze connected resources with reduced API calls.
AWS has introduced a serverless capability in the AWS Model Context Protocol Server (AWS MCP Server) to assist coding agents like Claude Code and Kiro in diagnosing problems with Lambda functions. This feature allows agents to inspect running Lambda functions and their linked resources, such as API Gateway, EventBridge, and DynamoDB, without requiring additional setup. The serverless capability streamlines troubleshooting by consolidating data retrieval into a single API call, reducing token consumption compared to multiple sequential requests. Agents can now correlate errors against a 7-day baseline, identify trends, and retrieve configuration details more efficiently.
The new diagnostic tool provides a timeline of recent changes to Lambda functions and connected services, helping users track modifications and their potential impact. It also analyzes service latency across resources like SNS, SQS, and Step Functions, offering a clearer view of performance bottlenecks. The AWS MCP Server operates as a managed service, granting AI agents secure access to AWS infrastructure while maintaining compliance with existing permissions. Users can enable the feature through the Agent Toolkit for AWS or install it standalone via the AWS CLI.
To activate the serverless diagnostics, users must configure the Agent Toolkit for AWS by running ‘aws configure agent-toolkit’ in the AWS CLI or enable the AWS MCP Server directly. The serverless capability is accessible in all commercial AWS Regions, though the AWS MCP Server itself is hosted in US East (N. Virginia) and Europe (Frankfurt). This ensures low-latency access for diagnostic operations while maintaining regional compliance. The feature is provided at no additional cost, aligning with AWS’s existing pricing model for managed services.
The serverless diagnostic capabilities are designed to simplify troubleshooting for developers using AI-assisted coding tools. By integrating with popular agents like Claude Code and Kiro, AWS aims to reduce the complexity of diagnosing Lambda function issues and connected resource errors. The feature’s availability in all commercial regions and its inclusion at no extra charge make it accessible to a broad range of users. For detailed guidance, AWS provides a user guide to help users configure and utilize the new diagnostic tool effectively.