Speakeasy and Bump.sh have become the first vendors to officially support OpenAPI Overlays, a specification they believe can revolutionize various use cases. Speakeasy, a platform for building API SDKs, utilizes OpenAPI to create robust SDKs and enhance API documentation with custom code examples, Terraform providers, and end-to-end testing. These tools are designed for OpenAPI but also function with AsyncAPI through Bump.sh. Recently, Speakeasy released a guide showcasing the capability of Overlays to populate language-specific examples via the x-codeSamples extension, and the platform can generate both SDKs and Overlays containing these examples. With CI integration, the process is automated to ensure SDKs and documentation are always current with the latest API structure and contracts, providing seamless updates and implementation across supported languages.