Ask IH: A directory of services providing webhooks

I am looking for feedback on following:

I am building a directory of popular services that provides webhooks as a notification service. This directly shall list a sample/example of how to use it. (e.g. Sendgrid, Stripe, Zoho, Jira, Github, Gitlab, Slack, etc. )

How does it help: It helps all developers to create webhook integrations fast.
Any objective for revenue: No