The swagger for SYNCHRO 4D Schedule API can be found here:

4D Schedule API Swagger: https://es-api.bentley.com/4dschedule/swagger/index.html

4D Schedule API JSON Swagger: https://es-api.bentley.com/4dschedule/v1/swagger.json

Base URL Swagger Domain: https://es-api.bentley.com/

SYNCHRO Control: https://construction.bentley.com/