| AddAPIAuthentication(AuthenticationBuilder) | Adds the API authentication handler to the application. |
| AddAPIAuthentication(AuthenticationBuilder, ActionAPIAuthenticationOptions) | Adds the API authentication handler to the application. |
| AddAPIAuthentication(AuthenticationBuilder, String, ActionAPIAuthenticationOptions) | Adds the API authentication handler to the application. |
| AddAPIAuthentication(AuthenticationBuilder, String, String, ActionAPIAuthenticationOptions) | Adds the API authentication handler to the application. |