AWS is now publishing API models on a daily basis to Maven Central and GitHub, providing open source access to AWS API definitions.The Smithy API models define AWS services, aiding in understanding services, building developer tools, and creating SDKs and CLIs.Since 2018, AWS has been using Smithy models to generate SDK clients and CLI tools, ensuring thorough documentation of APIs.Users can generate SDK clients, API implementations, and developer tools using the AWS API models repository on GitHub.The repository contains Smithy models for all public AWS API services in JSON AST format, organized by service and version.Users can access detailed API information and examples through Smithy models, aiding in understanding and implementing AWS APIs.Smithy CLI offers tools for building, validating, and comparing models without requiring Java or Gradle setup.Examples provided demonstrate building SDK clients for DynamoDB and generating MCP servers using Smithy CLI.AWS API models are available on GitHub and Maven Central, enabling users to access and utilize them in their applications.For more information on Smithy and AWS SDKs, visit Smithy.io and Tools to Build on AWS resources.