Does Certify has API support that I can request a new certificate via API call ? not from UI
There’s the command line which has the add and remove options (as well as CSV import) and most people use that if they want to automate: Command Line (CLI) | Certify The Web Docs
Technically yes there is an API because that’s what the UI uses (using windows authentication) but it’s not really intended for end-users as it can and will change between releases without warning.
We are planning to a “public” http api (which wraps the call back to the actual service) in the future but I couldn’t say when that would be ready or which version of the product it will be available as part of, just that it will have both public (meant for your own customisations) and internal endpoints (just intended for our UIs) and an OpenAPI description.