How to use GitLab API to check if webhooks work in GitLab?

Gitlab has a good status page, but I can’t find information about webhook. In our company, we want to build integration, and we need to be sure that the webhooks service works, so we monitor VCS provider status pages. The status pages of GitHub, Bitbucket, Azure-DevOps contain information about webhooks.
Can you please tell me how to use GitLab API to check if webhooks work in Gitlab?

I don’t use webhooks, but you can start here:

also, there is the Applications API command which seems to give callback URL’s which to me looks like to be the section related to webhooks. The API docs for that section:

you will have to play around with the commands on your own instance to see if it gives you what you need.