APIMATIC has released vendor extensions for Swagger 2.0, allowing customization of behaviors beyond simple API descriptions. These extensions enable the use of custom settings and configurations, previously locked behind APIMATIC's internal API format. The extensions follow the Swagger 2.0 spec and introduce a new property definition named "x-codegen-settings" inside the "info" object. This setting allows for global applicability to all operations and schema definitions, enabling features such as asynchronous code generation, model postfixes, controller postfixes, and additional header settings. The extensions also allow for further customization of endpoints using the "x-operation-settings" property. These customizations can include parameters such as collecting parameters, allowing dynamic query and form parameters, and indicating multi-content streaming endpoints. APIMATIC's goal is to improve interoperability between tools and services while providing a pathway to add missing features that eventually become de-facto standard for API descriptions.