OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

Smithy is a protocol-agnostic interface definition language and set of tools for generating clients, servers, and documentation for any programming language.

Smithy code generators for Go (in development)

The SQS connector plugin provides the ability to use AWS SQS queues as both a source (from an SQS queue into a Kafka topic) or sink (out of a Kafka topic into an SQS queue).