Securing the OAS/Swagger endpoint in dotnet
OpenAPI 3.0 lets you describe how your APIs are protected using various security schemes and their security requirements.
Oas
Building a successful API - Understanding the Open API Specification (OAS)
The Open API Specification is used to define the contract between the API consumers and the API providers. The specification is based on the JSON schema and is a standard format for describing the data exchanged between the API consumers and the API providers.