Webhook guides by provider

What each provider actually sends, how it signs it, what it does when your endpoint is down — and a live URL you can point at it right now, without signing up.

Why these pages exist

Every webhook integration starts the same way: you need to see one real delivery before you can write the handler. That usually means deploying something, or running a tunnel, or reading a documentation page that shows a payload three API versions out of date.

Each guide gives you a working endpoint in one click, the delivery headers and payload shape as they arrive today, and one canonical signature-verification snippet worth copying. More providers get added as the first two prove out — if a guide you want is missing, the docs cover the general case and every endpoint works the same way regardless of who is sending to it.