awslabs.lambda-tool-mcp-server

What it does

AWS Labs' MCP server that turns chosen AWS Lambda functions into MCP tools without changing their code. An agent calls the server, which invokes the matching function; the function's own IAM role then reaches other AWS services, private networks or the internet, so the client only needs permission to invoke Lambda. Which functions appear is controlled by a name prefix, an explicit list or a tag key and value, and each function's description becomes the tool description. Input schemas can be pulled from the EventBridge Schema Registry through a tag on the function. It runs locally with uvx on Python 3.10.

Capabilities

Details