The Developer Portal documentation page Swagger interface is injecting `servers` variable to the API call answer data.
Example:
Used OAS 3.0 document:
{ "openapi": "3.0.0", "info": { "title": "OAS bug test spec", "version": "1.0.0", "description": "OAS 3.0 spec to test 3scale SwaggerUI server section bug." }, "paths": { "/test": { "get": { "description": "Request to endpoint that will return only 'hello': 'world!'. Check for the 'servers' added section by the browser.", "responses": { "200": { "description": "operacion exitosa" }, "400": { "description": "Bad Request" }, "404": { "description": "Not Found" }, "500": { "description": "Internal Server Error" } } } } }, "components": { "securitySchemes": { "api-key": { "type": "apiKey", "description": "Debe ingresar la api key asignada, si no la tiene, solicitela mediante mesa de ayuda, https://sipub.api.coordinador.cl/{backend}/{funcion}?user_key={APIKey}", "name": "user_key", "in": "query" } } }, "security": [ { "api-key": [] } ] }