mcp-on-lambda

Name: mcp-on-lambda
Author: linkcd

by linkcd 3 stars linkcd/mcp-on-lambda

A demo for streamable MCP on AWS Lambda with IAM-protected URLs.

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Streamable MCP Demo on AWS Lambda with IAM Protected Lambda URL

This repo is mainly based on the article https://community.aws/content/2vzj07Wyk6Lw281Tvs1Lw7kJJNW/building-scalable-mcp-servers-on-aws-lambda-a-practical-guide with following improvement:

The SAM deployment provisions the Lambda function URL that is protected by AWS IAM.
The MCP client can use the new AWSIAMTransport class to call the protected Lambda function URL. This class extends the default MCP typescript StreamableHTTPClientTransport by automatically sign the HTTP request with AWS Signature Version 4 for API requests. (by default use the local AWS credential, but you can use any AWS credential/role)

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