Each webhook URL captures the last 100 requests sent to it — method, path, query string, headers and up to 64 KB of body. Requests appear in the inspector in real time. The URL answers 200 {"ok":true} to every method including OPTIONS (CORS open), so it works as a stand-in endpoint for CI hooks, payment-provider test events, or browser fetch calls.

No accounts, no tracking — anyone with the link can view captures, so treat the URL itself as the secret.