The following list contains Swagger urls for all environments. You need to get an API key and JWT token from the platform team to use Swagger.
MTAPI-INT (on premise): https://wwwappstest.tc.gc.ca/Saf-Sec-Sur/13/MTAPI-INT/swagger/ui/index
MTAPI-INT (Kanga): https://wwwappstestext.tc.gc.ca/Saf-Sec-Sur/13/MTAPI-INT/swagger/ui/index
MTAPI-DEV: https://wwwappstest.tc.gc.ca/Saf-Sec-Sur/13/MTAPI-DEV/swagger/ui/index
MTAPI-TEST: https://wwwappstest.tc.gc.ca/Saf-Sec-Sur/13/MTAPI-TEST/swagger/ui/index
MTAPI: https://wwwappstest.tc.gc.ca/Saf-Sec-Sur/13/MTAPI-TEST/swagger/ui/inde