The Perfex to SaaS module can be interacted with through API.
The API is documentation (Open API Specification 3 – OAS3) is inclusive and can be accessed directly from your SaaS settings page (API tab). When you are logged in as admin, the OAS3 API is authenticated automatically with your API key and you can test directly.
Some utility endpoints are open and does not requires API key, such endpoint include the health check, caddy domain check, slug availability and custom domain check. Other requires valid secure API key to access.
See below image for getting your API key and API documentation.
Click here to read more: https://perfextosaas.com/saas/api/docs