As a bit of feedback, I highly suggest adding Webhooks as a source on your marketing site.

The first thing I did is navigate to the Sources page and searched for "webhook" which brought up no results.

I then searched your docs which only mention Webhooks in the context of being a destination rather than a source.

I realise now that you have quite a flexible ingestion API, but it took quite a while (and your confirmation above) to understand this!

The product looks awesome though! Good luck with the launch.