Webhooks are a clever way of feeding third party applications information on events in the app. Buddy, for example, utilizes webhooks as a pipeline execution trigger which runs an execution whenever you push something to the integrated repository.
You can find the webhooks at the end of the integrations list in the Integrations tab, however it's restricted to workspace admins and owner:
Adding a new webhook
To add a new webhook, click Add a new integration and choose Webhook from the roster:
To configure the webhook, you need to paste the payload URL, specify the type of events firing it off (push or execution), and assign it to one, multiple or all projects:
Clicking a webhook on the list will bring the edit screen. Here you can modify its details and check the status of the last 20 triggers, including the complete payload: