The only webhook this platform's roadmap currently names is a Stripe webhook for payment and subscription events, as part of the Purchase → License → Setup → Deployment → Activation sequence on the platform's commerce roadmap. No payment webhook endpoint is registered today.

The platform's core invariant applies here too: a successful payment must never, by itself, cause a product to become reachable. A webhook, when it exists, may create or update a License — it will never advance a Deployment past its initial requested state.